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QUERIESSTATUS

Startup time

select to_char(startup_time, 'HH24:MI DD-MON-YY') "tartup time"!rom #i$sta$ce%

How large is the database

col "Data&ase ie" !ormat a2col "ree space" !ormat a2col "*se+ space" !ormat a2select rou$+(sum(use+&tes) % .24 % .24 % .24 ) // ' 01' "Data&ase ie", rou$+(sum(use+&tes) % .24 % .24 % .24 ) -

rou$+(!reep % .24 % .24 % .24) // ' 01' "*se+ space", rou$+(!reep % .24 % .24 % .24) // ' 01' "ree space"!rom (select&tes !rom #+ata!ile  u$io$ all

 select &tes !rom #temp!ile u$io$ all select &tes !rom #lo) use+,

  (select sum(&tes) as p !rom +&a_!ree_space) !ree  roup & !reep %

Distribution of objects and data

Which schemas are taking up all of the spaceset paes 333col "sie M1" !ormat 333,333,333col "O&ects" !ormat 333,333,333select o&o5$er "O5$er",o&_c$t "O&ects",+eco+e(se_sie, N*66, , se_sie) "sie M1"!rom (select o5$er, cou$t(7) o&_c$t!rom +&a_o&ects roup & o5$er) o&,(select o5$er, ceil(sum(&tes)%.24%.24) se_sie!rom +&a_seme$ts roup & o5$er) se5here o&o5$er 8 seo5$er(9)or+er & +esc ,2 +esc, .%

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Show the ten largest objects in the database

;ol o5$er !ormat a.<;ol seme$t_$ame !ormat a;ol seme$t_tpe !ormat a.<;ol m& !ormat 333,333,333

select o5$er,seme$t_$ame,seme$t_tpe,m&!rom(select o5$er,seme$t_$ame,seme$t_tpe,&tes % .24 % .24 "M1"!rom +&a_seme$tsor+er & &tes +esc)5here ro5$um = ..%

Is jaa installed in the database!

This will return 9000'ish if it is...select cou$t(7)

!rom all_o&ects5here o&ect_tpe li>e '?@ABA?'a$+ o5$er 8 'Y'%

Displa" character set information

select 7 !rom $ls_+ata&ase_parameters%

Show all used features

select $ame, +etecte+_usaes!rom +&a_!eature_usae_statistics5here +etecte+_usaes C %

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SESSION

Show all connected users

set li$es . paes 333

col ID !ormat a.<select user$ame,si+ // ',' // serial "ID",status,last_call_et "6ast Actiit"!rom #sessio$5here user$ame is $ot $ullor+er & status +esc,last_call_et +esc

/

Time since last user actiit"

set li$es . paes 333select user$ame

, !loor(last_call_et % E) "Mi$utes", status!rom #sessio$5here user$ame is $ot $ullor+er & last_call_et

/

Sessions sorted b" logon time

set li$es . paes 333col ID !ormat a.<col osuser !ormat a.<col loi$_time !ormat a.4select user$ame, osuser, si+ // ',' // serial "ID", status, to_char(loo$_time, 'hh24:mi ++%mm%') loi$_time, last_call_et!rom #sessio$5here user$ame is $ot $ullor+er & loi$_time

/

Show user info including os pid

col "ID%FGIA6" !ormat a.col user$ame !ormat a.<col osuser !ormat a.<col proram !ormat a4select ssi+ // ',' // sserial "ID%FGIA6", suser$ame, sosuser, pspi+ "O ID", sproram

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!rom #sessio$ s, #process phere spa++r 8 pa++ror+er & to_$um&er(pspi+)

/

Show a users current s#l

elect sJl_teKt!rom #sJlarea5here (a++ress, hash_alue) i$(select sJl_a++ress, sJl_hash_alue

!rom #sessio$  5here user$ame li>e 'Luser$ame')

/

Session status associated with the specified os process id

select suser$ame, ssi+, sserial, pspi+, last_call_et, status!rom B#FION s, B#GO;F p5here sADDG 8 pADDGa$+ pspi+8'Lpi+'

/

All actie s#l

set !ee+&ac> o!!set sereroutput o$ sie 3333colum$ user$ame !ormat a2colum$ sJl_teKt !ormat a<< 5or+_5rappe+&ei$  !or K i$  (select user$ame//'('//si+//','//serial//') ospi+ 8 '// process //  ' proram 8 ' // proram user$ame,  to_char(6O0ON_IMF,' Da HH24:MI') loo$_time,  to_char(ss+ate,' Da HH24:MI') curre$t_time,  sJl_a++ress,  sJl_hash_alue  !rom #sessio$

  5here status 8 'A;IBF'  a$+ ra5toheK(sJl_a++ress) =C ''  a$+ user$ame is $ot $ull ) loop  !or i$ (select sJl_teKt  !rom #sJlarea  5here a++ress 8 KsJl_a++ress ) loop  i! ( sJl_teKt $ot li>e '?liste$eret_cm+?' a$+  sJl_teKt $ot li>e '?GAOHF(6_ADDGF)?' ) the$  +&ms_outputput_li$e( '--------------------' )P

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  +&ms_outputput_li$e( Kuser$ame )P  +&ms_outputput_li$e( Kloo$_time // ' ' // Kcurre$t_time // ' 68' //KsJl_hash_alue)P  +&ms_outputput_li$e( su&str( sJl_teKt, ., 2< ) )P  e$+ i!P  e$+ loopP e$+ loopPe$+P

/

Displa" an" long operations

set li$es . paes 333col user$ame !ormat a.<col messae !ormat a4col remai$i$ !ormat 3333select user$ame, to_char(start_time, 'hh24:mi:ss ++%mm%') starte+, time_remai$i$ remai$i$

, messae!rom #sessio$_lo$ops5here time_remai$i$ 8 or+er & time_remai$i$ +esc%

$ist open cursors per user

set paes 333select sessuser$ame, sesssi+, sessserial, statalue cursors

!rom #sesstat stat, #stat$ame s$, #sessio$ sess5here sessuser$ame is $ot $ulla$+ sesssi+ 8 statsi+a$+ statstatistic 8 s$statistica$+ s$$ame 8 'ope$e+ cursors curre$t'or+er & alue

/

Or alternatiel!...set li$es . paes 333select cou$t(hash_alue) cursors

, si+, user_$ame!rom #ope$_cursorroup &

si+, user_$ameor+er &

cursors%

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I%IT &ARA'ETERS

Show latent parameter changes

select $ame

, alue!rom #parameter5here ismo+i!ie+ Q8 'A6F'

/

Show non(default parameters

set paes 333 li$es .col $ame !ormat acol alue !ormat a<select $ame, alue!rom #parameter

5here is+e!ault 8 'A6F'a$+ alue is $ot $ullor+er & $ame

/

or for name"'parameter' st!le...set paes 333 li$es .select $ame // '8' // +eco+e(tpe, 2, '''') // alue

// +eco+e(tpe, 2, '''') parameter!rom #parameter5here is+e!ault 8 'A6F'a$+ alue is $ot $ullor+er & $ame

/

Reset)Unset a spfile parameter

Setting a parameter to "' ' often isn't enough. #o this instea$...alter sstem reset =parameterC scope8sp!ile si+8'7'

/

The si$"'%' &it is alwa!s necessar! een in non ()* $ata&ase.

USER $ist users

set paes 333 li$es .col user$ame !ormat a2col status !ormat aRcol ta&lespace !ormat a2col temp_ts !ormat a2

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select user$ame, accou$t_status status, create+, +e!ault_ta&lespace ta&lespace, temporar_ta&lespace temp_ts!rom +&a_usersor+er & user$ame%

$oc* or unloc* a user

alter user =user$ameC accou$t loc>P

And to unloc*+++

alter user =user$ameC accou$t u$loc>P

R,$E-ind a role

select 7!rom +&a_roles5here role li>e 'Lrole'

/

Show what roles are granted to a user

select ra$tee, ra$te+_role, a+mi$_optio$!rom +&a_role_pris5here ra$tee li>e upper('Luser$ame')

/

Show what s"stem priileges are granted to a role

select priilee, a+mi$_optio$!rom role_ss_pris5here role li>e 'Lrole'

/

Show what table priileges are granted to a role

select o5$er // '' // ta&le_$ame "A16F", colum$_$ame, priilee, ra$ta&le!rom role_ta&_pris5here role li>e 'Lrole'

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%

Administration ( AS'

•

*heck if css is running/working• #ispla! $isk+groups

• Show $isk space usage

• *reate a $isk group

• )$$ a $isk to a group

• #rop a $isk group

• Is )S, performing a &alancing operation

• *heck the internal consistenc! of a $iskgroup

.hec* if css is running)wor*ing

crsctl check css$

Displa" dis*(groups

set li$es .col $ame !ormat a.col path !ormat aselect $ame, roup_$um&er, +is>_$um&er, mou$t_status, state, path

!rom #asm_+is>or+er & roup_$um&er

/note. ) group num&er of -ero his in$icates that a $isk is aaila&le &ut hasn't !et &een assigne$ to a

$isk group.

Show dis* space usage

select $ame, roup_$um&er, +is>_$um&er, total_m&, !ree_m&

!rom #asm_+is>or+er & roup_$um&er

/

.reate a dis* group

create +is>roup +ata.eKter$al re+u$+a$c+is> '%+e%ra5%ra5.'

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/

or with multiple raw partitions...multiple +is>screate +is>roup +ata2eKter$al re+u$+a$c

+is> '%+e%ra5%ra52', '%+e%ra5%ra5'

/

or with multiple fail groups...create +is>roup +ata$ormal re+u$+a$c!ailroup co$troller. +is> '%+e%ra5%ra54'!ailroup co$troller2 +is> '%+e%ra5%ra5E'

/

Add a dis* to a group

alter +is>roup +ata.a++ +is> '%+e%ra5%ra54'

/

Wil$car$s can &e use$ for raw $eice names eg. raw%

Drop a dis* group

+rop +is>roup '=$ameC'

/

Is AS' performing a balancing operation

select 7!rom #asm_operatio$

/

,ount/$ismount $isk groupsalter +is>roup all mou$t

alter +is>roup +ata. mou$t

alter +is>roup all +ismou$t

alter +is>roup +ata. +ismou$t

.hec* the internal consistenc" of a dis*group

alter +is>roup +ata. chec> all%

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Administration ( RA. /0gR1

• Start stop an$ check *(S *luster (ea$! Serices

• Start/stop no$eapps

• Start/stop asm

• Start/stop a $ata&ase all no$es

• Start/stop an in$ii$ual instance• *heck the I1 config

• *hange the I1 a$$ress su&netmask or interface

• 2ocate the oting $isk

• (etrie O*( Oracle *luster (egistr! information

• To preent a $ata&ase starting at &oot time

• *hange the priate interconnect su&net

Start2 stop and chec* .RS 3.luster Read" Serices4

 Note. Start/stop nee$ to &e run as root from the *(S home.

Start *(Scrsctl start crs

Stop *(Scrsctl stop crs

*heck *(S's statuscrsctl chec> crs

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See the status of the arious sericescrs_stat -t

Start)stop nodeapps

srctl start $o+eapps -$ =$o+e $ameC

srctl stop $o+eapps -$ =$o+e $ameC

Start)stop asm

srctl start asm -$ =$o+e $ameC

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srctl stop asm -$ =$o+e $ameC

Start)stop a database 3all nodes4

srctl start +ata&ase -+ =+ata&ase $ameC

srctl stop +ata&ase -+ =+ata&ase $ameC

Start)stop an indiidual instance

srctl start i$sta$ce -+ =+ata&ase $ameC -i =i$sta$ce $ameC

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srctl stop i$sta$ce -+ =+ata&ase $ameC -i =i$sta$ce $ameC

.hec* the 5I& config

srctl co$!i $o+eapps -$ =$o+eC -a - -s -l

.hange the 5I& address2 subnetmas* or interface

srctl stop $o+eapps -$ =$o+e.Csrctl stop $o+eapps -$ =$o+e2Csrctl mo+i! $o+eapps -$ =$o+e.C -A =ip_a++ressC%=$et mas>C%=i$ter!aceCsrctl mo+i! $o+eapps -$ =$o+e2C -A =ip_a++ressC%=$et mas>C%=i$ter!aceC

srctl start $o+eapps -$ =$o+e.Csrctl start $o+eapps -$ =$o+e2C

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$ocate the oting dis* 

crsctl Juer css ote+is>

Retrie ,.R 3,racle .luster Registr"4 information

ocrchec>

To preent a database starting at boot time

srctl +isa&le +ata&ase -+ =+ata&ase $ameC

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.hange the priate interconnect subnet

3irst fin$ the interface which is in use as the interconnect + run as root from the crs home4oi!c! eti!

,ake a note of the interface name eth5 in the following e6ample then

run the following4oi!c! +eli! -lo&al eth.oi!c! seti! -lo&al eth.%=our $e5 su&$etC:cluster_i$terco$$ect

Administration ( 6ob Scheduler

• 2ist sche$ule$ 7o&s

• Su&mit a 7o&

• (emoe a 7o&

• (eset a &roken 7o&

• )$$ a program to the 50g sche$uler os program

•

)$$ a program to the 50g sche$uler store$ proce$ure• Sche$ule a 50g 7o&

$ist scheduled jobs

set li$es . paes 333col schema_user !ormat a.<col !ails !ormat 333select o&, schema_user, to_char(last_+ate, 'hh24:mi ++%mm%') last_ru$, to_char($eKt_+ate, 'hh24:mi ++%mm%') $eKt_ru$, !ailures !ails

, &ro>e$, su&str(5hat, ., .<) 5hat!rom +&a_o&sor+er & 4%

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Submit a job

+&ms_o&su&mit('=co+eC', =start timeC, =repeat timeC, G*F)P

3or e6ample4+eclare  o&_i+ $um&erP&ei$+&ms_o&su&mit(

o&_i+, 'a$++ail_+ata_cle$se'

, tru$c(ss+ate9.)922%24, 'ss+ate9.', true)Pe$+P%

This will run a store$ proce$ure calle$ '$ail!8$ata8clense' each $a! at 50pm.

Remoe a job

ou nee$ to &e connecte$ as the user who owns the 7o&eKec +&ms_o&remoe(=o& $um&erC)P

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Reset a bro*en job

ou nee$ to &e connecte$ as the user who owns the 7o&eKec +&ms_o&&ro>e$(=o& $um&erC, A6F)P

Add a program to the /0g scheduler 3os program4

&ei$+&ms_sche+ulercreate_proram(proram_$ame8C'ANDYo&_test',proram_actio$8C'%home%oracle%a$+&%o&_testsh',proram_tpe8C'FF;*A16F',comme$ts8C'test o&',e$a&le+8CG*F)Pe$+P%

Add a program to the /0g scheduler 3stored procedure4

&ei$+&ms_sche+ulercreate_proram(

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proram_$ame8C'ANDYo&_test',proram_actio$8C'a$+o&_test',proram_tpe8C'OGFD_GO;FD*GF',comme$ts8C'test proram',e$a&le+8CG*F)Pe$+P%

Schedule a /0g job

&ei$+&ms_she+ulercreate_o&(o&_$ame8C'a$+a$+_o&_test',proram_$ame8C'a$+o&_test',start_+ate8C)

Administration ( Rec"cle bin

• #ispla! the contents of the rec!cle &in

• Empt! the rec!cle &in• #rop an o&7ect with out putting it in the rec!cle &in

Displa" the contents of the rec"cle bin

sho5 reccle&i$

Empt" the rec"cle bin

pure reccle&i$

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Drop an object with out putting it in the rec"cle bin

 +rop =o&ect_tpeC =o&ect_$ameC pureP

Structure ( Tablespace

• Ta&lespace usage

• Show the files that comprise a ta&lespace

• Ta&lespaces :;0< full

• =ser >uotas on all ta&lespaces

• 2ist all o&7ects in a ta&lespace

• Show all ta&lespaces use$ &! a user

• *reate a temporar! ta&lespace

• )lter a $ata&ases $efault temporar! ta&lespace

• Show segments that are approaching ma68e6tents

• 2ist the contents of the temporar! ta&lespaces

Tablespace usage

set paes 333col ta&lespace_$ame !ormat a4col "sie M1" !ormat 333,333,333col "!ree M1" !ormat 33,333,333col "? *se+" !ormat 333select tsuta&lespace_$ame, ceil(tsuuse+_m&) "sie M1", +eco+e(ceil(ts!!ree_m&), N*66,,ceil(ts!!ree_m&)) "!ree M1", +eco+e(. - ceil(ts!!ree_m&%tsuuse+_m&7.), N*66, .,  . - ceil(ts!!ree_m&%tsuuse+_m&7.)) "? use+"!rom (select ta&lespace_$ame, sum(&tes)%.24%.24 use+_m&

!rom +&a_+ata_!iles roup & ta&lespace_$ame u$io$ all

select ta&lespace_$ame // ' 77FM77', sum(&tes)%.24%.24 use+_m&!rom +&a_temp_!iles roup & ta&lespace_$ame) tsu

, (select ta&lespace_$ame, sum(&tes)%.24%.24 !ree_m&!rom +&a_!ree_space roup & ta&lespace_$ame) ts!

5here tsuta&lespace_$ame 8 ts!ta&lespace_$ame (9)or+er & 4%

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Show the files that comprise a tablespace

set li$es .col !ile_$ame !ormat aSselect !ile_$ame, ceil(&tes % .24 % .24) "sie M1"!rom +&a_+ata_!iles5here ta&lespace_$ame li>e 'LNAMF'

%

Tablespaces 7809 full

set paes 333 li$es .col ta&lespace_$ame !ormat a4col "sie M1" !ormat 333333333col "? *se+" !ormat 333col "R?" !ormat 333333col "S<?" !ormat 333333select tsuta&lespace_$ame, ceil(tsuuse+_m&) "sie M1", . - !loor(ts!!ree_m&%tsuuse+_m&7.) "? *se+", (tsuuse+_m& % .) 7 (2 - !loor(ts!!ree_m&%tsuuse+_m&7.)) "R?", (tsuuse+_m& % .) 7 (2< - !loor(ts!!ree_m&%tsuuse+_m&7.)) "S<?"

!rom (select ta&lespace_$ame, sum(&tes)%.24%.24 use+_m&  !rom +&a_+ata_!iles roup & ta&lespace_$ame) tsu, (select ta&lespace_$ame, sum(&tes)%.24%.24 !ree_m&  !rom +&a_!ree_space roup & ta&lespace_$ame) ts!5here tsuta&lespace_$ame 8 ts!ta&lespace_$ame (9)a$+ . - !loor(ts!!ree_m&%tsuuse+_m&7.) C8 Ror+er & ,4,<%

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User #uotas on all tablespaces

col Juota !ormat a.select user$ame, ta&lespace_$ame, +eco+e(maK_&tes, -., 'u$limite+'  , ceil(maK_&tes % .24 % .24) // 'M' ) "*OA"!rom +&a_ts_Juotas

5here ta&lespace_$ame $ot i$ ('FM')%

$ist all objects in a tablespace

set paes 333col o5$er !ormat a.<col seme$t_$ame !ormat a4col seme$t_tpe !ormat a2select o5$er, seme$t_$ame, seme$t_tpe!rom +&a_seme$ts5here lo5er(ta&lespace_$ame) li>e lo5er('?Lta&lespace?')or+er & o5$er, seme$t_$ame

%

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Show all tablespaces used b" a user

select ta&lespace_$ame, ceil(sum(&tes) % .24 % .24) "M1"!rom +&a_eKte$ts5here o5$er li>e 'Luser_i+'roup & ta&lespace_$ameor+er & ta&lespace_$ame

%

.reate a temporar" tablespace

create temporar ta&lespace temptemp!ile '=!ile_$ameC' sie <M%

Alter a databases default temporar" tablespace

alter +ata&ase +e!ault temporar ta&lespace temp%

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Show segments that are approaching ma:;e:tents

col seme$t_$ame !ormat a4select o5$er, seme$t_tpe, seme$t_$ame, maK_eKte$ts - eKte$ts as "spare", maK_eKte$ts

!rom +&a_seme$ts5here o5$er $ot i$ ('Y','YFM')a$+ (maK_eKte$ts - eKte$ts) = .or+er & 4%

To change ma6e6tentsalter =seme$t_tpeC =seme$t_$ameC storae(maKeKte$ts .<)P

$ist the contents of the temporar" tablespace3s4

set paes 333 li$es .col user$ame !ormat a.<col m& !ormat 333,333select suuser$ame, sessi+

, sesserial, suta&lespace, ceil((su&loc>s 7 +t&loc>_sie) % .4R<SE) M1!rom #sort_usae su, +&a_ta&lespaces +t, #sessio$ ses5here suta&lespace 8 +tta&lespace_$amea$+ susessio$_a++r 8 sessa++r%

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Structure ( ,bjects

• 3in$ an o&7ect

•

Inali$ o&7ects• Show the si-e of an o&7ect

• )ll o&7ects owne$ &! a user

• Source co$e of a proce$ure

• ?et an o&7ects $$l 9i onwar$s

• #ispla! compilation errors an$ warnings

• 3in$ all ta&les containing the specifie$ column

• 2ist all ta&les owne$ &! a user sorte$ &! si-e

-ind an object

set paes 333col o5$er !ormat a.<col o&ect_$ame !ormat a4col o&ect_tpe !ormat a2select o5$er, o&ect_$ame, o&ect_tpe!rom +&a_o&ects5here lo5er(o&ect_$ame) li>e lo5er('?Lo&ect?')or+er & o5$er, o&ect_tpe, o&ect_$ame%

Inalid objects

2ist inali$ o&7ects...set li$es 2 paes 333

col "o&" !ormat a4select o5$er // '' // o&ect_$ame "o&",o&ect_tpe!rom +&a_o&ects5here status 8 'INBA6ID'%

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(ecompile all inali$ o&7ects...TU%r+&ms%a+mi$%utlrpsJl

Show the si<e of an object

col seme$t_$ame !ormat a2select seme$t_$ame, &tes "IVF_1YF", ceil(&tes % .24 % .24) "IVF_M1"!rom +&a_seme$ts5here seme$t_$ame li>e 'Lo&_$ame'

%

All objects owned b" a user

col o&ect_$ame !ormat a4select o&ect_$ame, o&ect_tpe!rom +&a_o&ects5here o5$er 8 'Luser'or+er & o&ect_tpe, o&ect_$ame%

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Source code of a procedure

select teKt!rom +&a_source5here o5$er 8 'ANDY'a$+ $ame 8 'I6F_F'a$+ tpe 8 'A;WA0F 1ODY'or+er & li$e

%

=et an objects ddl 3>i onwards4

 Note. Works for 9i an$ newer.

1arameters4 O@AE*T8T1E O@AE*T8N),E S*BE,)set paesie set lo$ 3select +&ms_meta+ataet_++l('A16F','A16F_A','ANDY') !rom +ualP

Displa" compilation errors and warnings

sho5 errors

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sho5 errors ie5 =ei5_$ameCsho5 errors proce+ure =proc_$ameC

select 7 !rom +&a_errorsP

-ind all tables containing the specified column

set paes 333 li$es .col ta& !ormat aEcol colum$_$ame !ormat a2select o5$er // '' // ta&le_$ame as ta&

, colum$_$ame!rom +&a_ta&_colum$s5here colum$_$ame li>e upper('Lcol')%

$ist all tables owned b" a user sorted b" si<e

set li$es . paes 333col seme$t_$ame !ormat a4col m& !ormat 333,333,333select seme$t_$ame, ceil(sum(&tes) % .24 % .24) "M1"

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!rom +&a_seme$ts5here o5$er li>e 'Luser'a$+ seme$t_tpe 8 'A16F'roup & seme$t_$ameor+er & ceil(sum(&tes) % .24 % .24) +esc%

Structure ( Inde:es

• In$e6 info &! ta&le

• Show in$e6e$ columns

Inde: info b" table

select ii$+eK_$ame, ita&lespace_$ame, ceil(s&tes % .4R<SE) "ie M1"

!rom +&a_i$+eKes i, +&a_seme$ts s5here ii$+eK_$ame 8 sseme$t_$amea$+ ta&le_$ame li>e 'Lta&le'or+er & 2, .

/

Show inde:ed columns

select colum$_$ame!rom +&a_i$+_colum$s5here i$+eK_$ame 8 'Li$+eK'or+er & colum$_positio$

%

Structure ( -iles

• #ispla! all $atafiles tempfiles an$ logfiles an$ their si-es

• Cuick $atafile health check

• Show $irectories that contain $atafiles

• 2ist autoe6tensi&le $atafiles

• Turn autoe6ten$ off for all $atafiles

• ,oe files &etween $isks

• 2ist controlfiles• *reate an OS comman$ for eer! file in the $ata&ase

• 3in$ $uplicate filenames

• 2ist files that are in hot+&ackup mo$e

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Displa" all datafiles2 tempfiles and logfiles 3and their si<es4

set li$es . paes 333col $ame !ormat a<select $ame, &tes!rom (select$ame, &tes

!rom #+ata!ileu$io$ allselect $ame, &tes!rom #temp!ileu$io$ allselect l!mem&er "$ame", l&tes!rom #lo!ile l!, #lo l5here l!roup 8 lroupu$io$ allselect $ame, !rom #co$trol!ile) use+

, (select sum(&tes) as p!rom +&a_!ree_space) !ree

%

Quic* datafile health chec* 

ou shoul$ onl! see online an$ s!stem ma!&e rea$+onl! tooselect +isti$ct status !rom #+ata!ile%

Show directories that contain datafiles

select +isti$ct su&str($ame, ., i$str($ame, '%', -.)) DIG!rom #+ata!ileor+er & .

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%

$ist autoe:tensible datafiles

select !ile_$ame!rom +&a_+ata_!iles5here autoeKte$si&le 8 'YF'%

Turn autoe:tend off for all datafiles

select 'alter +ata&ase +ata!ile ''' // !ile_$ame // ''' autoeKte$+ o!!P'!rom +&a_+ata_!iles%

'oe files between dis*s

set trimspool o$ 5rap o!!set hea+i$ o!!set eri! o!!set paes . li$es .

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spool re$amesJl

select 'alter +ata&ase re$ame !ile ''' //$ame // ''' to ''' //replace($ame // '''P', '%u.', '%u2')

!rom #+ata!ile%

select 'alter +ata&ase re$ame !ile ''' //mem&er // ''' to ''' //replace(mem&er // '''P', '%u.', '%u2')

!rom #lo!ile%

spool o!!

$ist controlfiles

select $ame!rom #co$trol!ile%

.reate an ,S command for eer" file in the database

The e6ample $eletes all filesselect 'rm ' // $ame!rom (select $ame

!rom #+ata!ileu$io$ allselect $ame!rom #temp!ileu$io$ allselect mem&er!rom #lo!ile

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  u$io$ all  select $ame  !rom #co$trol!ile

)%

-ind duplicate filenames

Searches for files with the same name in all $irectoriesselect cou$t(su&str($ame, i$str($ame, '%', -.) 9 ., 333)) "total", cou$t(+isti$ct su&str($ame, i$str($ame, '%', -.) 9 ., 333)) "+isti$ct"!rom #+ata!ile%

$ist files that are in hot(bac*up mode

set li$es . paes 333col $ame !ormat aEselect +!$ame, &status, to_char(time, 'hh24:mi:ss ++%mm%') time!rom #+ata!ile +!, #&ac>up &5here +!!ile 8 &!ile

a$+ &status 8 'A;IBF'or+er & &!ile

/

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Structure ( Redo $ogs

• (emoe $rop

• a$$ logfile mem&ers

• 2ist mem&ers an$ si-es

Remoe drop

alter +ata&ase +rop lo!ile mem&er '=!ile$ameC'P

add logfile members

alter +ata&ase a++ lo!ile mem&er '=!ile$ameC' to roup =roupCP

$ist members and si<es

col mem&er !ormat aEcol "ie M1" !ormat 3,333,333

select l!mem&er, ceil(l&tes % .24 % .24) "ie M1"!rom #lo!ile l!, #lo l5here lroup 8 l!roupor+er & .%

Structure ( Undo

• *onerting from (oll&ack to =n$o

• #ispla! the roll&ack segments• )lter un$o retention

• What's in un$o

• Is an!thing rolling &ack at the momentD

Displa" the rollbac* segments

select seme$t_$ame, status!rom +&a_roll&ac>_ses%

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Alter undo retention

alter sstem set u$+o_rete$tio$8< scope8memorP

 Note. This is in secon$s

?hat@s in undo

select ta&lespace_$ame, status, cou$t(7) as HO_MANY!rom +&a_u$+o_eKte$tsroup & ta&lespace_$ame, status%

Is an"thing rolling bac* at the moment!

2ook for the use$8u&lk alue $ecreasing. If it is the session connecte$ with it is rolling &ack.

When it reaches -ero roll&ack is complete.set li$es . paes 333col user$ame !ormat a.<

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col comma$+ !ormat a2select sesuser$ame, su&str(sesproram, ., .3) comma$+, trause+_u&l>!rom #sessio$ ses, #tra$sactio$ tra5here sessa++r 8 trases_a++r%

Structure ( .onstraints

• Show all constraints on a ta&le

• 2ist ta&les that are using the specifie$ ta&le as a foreign ke!

• 1ro$uce a list of $isa&le$ fk constraints

• 1ro$uce ena&le statements all $isa&le$ fk constraints

• 2ist parent ta&les that ma! nee$ fi6ing/re+importing

• 2ist missing foriegn ke! alues

• Show all ta&le constraints for a user

Show all constraints on a table

col tpe !ormat a.col co$s_$ame !ormat aselect +eco+e(co$strai$t_tpe,

';', ';hec>','O', 'G%O Bie5','', 'rimar','G', 'orei$','*', '*$iJue','B', ';hec> ie5') tpe

, co$strai$t_$ame co$s_$ame, status, last_cha$e!rom +&a_co$strai$ts5here o5$er li>e 'Lo5$er'a$+ ta&le_$ame li>e 'Lta&le_$ame'or+er & .%

$ist tables that are using the specified table as a foreign *e"

set li$es . paes 333

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select ao5$er, ata&le_$ame, aco$strai$t_$ame!rom +&a_co$strai$ts a, +&a_co$strai$ts &5here aco$strai$t_tpe 8 'G'a$+ ar_co$strai$t_$ame 8 &co$strai$t_$amea$+ ar_o5$er 8 &o5$era$+ &o5$er 8 'Lta&le_o5$er'a$+ &ta&le_$ame 8 'Lta&le_$ame'%

Same as a&oe &ut pro$uces '$isa&le constraint' statementsset li$es . paes 333col +isco$ !ormat a.select 'alter ta&le '//ao5$er//''//ata&le_$ame//' +isa&le co$strai$t'//aco$strai$t_$ame//'P' +isco$!rom +&a_co$strai$ts a, +&a_co$strai$ts &5here aco$strai$t_tpe 8 'G'a$+ ar_co$strai$t_$ame 8 &co$strai$t_$amea$+ ar_o5$er 8 &o5$era$+ &o5$er 8 'Lta&le_o5$er'

a$+ &ta&le_$ame 8 'Lta&le_$ame'%

&roduce a list of disabled f* constraints

set li$es . paes 333col ta&le !ormat aEcol co$strai$t_$ame !ormat aselect o5$er//''//ta&le_$ame "ta&le", co$strai$t_$ame!rom +&a_co$strai$ts5here status 8 'DIA16FD'

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a$+ co$strai$t_tpe 8 'G'a$+ o5$er $ot i$ ('Y','YFM')or+er & .,2%

&roduce enable statements all disabled f* constraints

set li$es . paes 333select 'alter ta&le '//o5$er//''//ta&le_$ame//' e$a&le co$strai$t

'//co$strai$t_$ame//'P' "e$a&le"!rom +&a_co$strai$ts5here status 8 'DIA16FD'a$+ co$strai$t_tpe 8 'G'a$+ o5$er $ot i$ ('Y','YFM')or+er & .%

$ist parent tables that ma" need fi:ing)re(importing

select +isti$ct ro5$er // '' // rta&le_$ame "eKp"!rom +&a_co$strai$ts c, +&a_co$strai$ts r5here cstatus 8 'DIA16FD'a$+ cco$strai$t_tpe 8 'G'

a$+ cr_o5$er 8 ro5$era$+ cr_co$strai$t_$ame 8 rco$strai$t_$amea$+ co5$er $ot i$ ('Y','YFM')or+er & .%

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$ist missing foriegn *e" alues

 Note. =seful for resoling O()+09;select 'select '//cccolum$_$ame-  //' !rom '//co5$er//''//cta&le_$ame-  //' a 5here $ot eKists (select ''K'' !rom '-  //ro5$er//''//rta&le_$ame-

  //' 5here '//rccolum$_$ame//' 8 a'//cccolum$_$ame//')'!rom +&a_co$strai$ts c,  +&a_co$strai$ts r,  +&a_co$s_colum$s cc,  +&a_co$s_colum$s rc5here cco$strai$t_tpe 8 'G'a$+ co5$er $ot i$ ('Y','YFM')a$+ cr_o5$er 8 ro5$era$+ co5$er 8 cco5$era$+ ro5$er 8 rco5$era$+ cco$strai$t_$ame 8 ccco$strai$t_$amea$+ rco$strai$t_$ame 8 rcco$strai$t_$amea$+ cr_co$strai$t_$ame 8 rco$strai$t_$amea$+ ccpositio$ 8 rcpositio$

a$+ co5$er 8 'Lta&le_o5$er'a$+ cta&le_$ame 8 'Lta&le_$ame'a$+ cco$strai$t_$ame 8 'Lco$strai$t_$ame'or+er & co5$er, cta&le_$ame, cco$strai$t_$ame, ccpositio$%

Show all table constraints for a user

 Note. This still nee$s some work...set li$es . paes 333&rea> o$ ta&le_$ame

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$ist all materiali<ed iew logs

select lo_o5$er, lo_ta&le!rom +&a_mie5_los%

.reate a simple materiali<ed iew

create materialie+ ie5 a$+_mie5

re!resh X!ast / complete / !orcestart 5ith ss+ate$eKt ss+ate 9 .%245ith primar >eas select 7 !rom test_ta&le%

-ast " up$ate changes onl!

.omplete " wipe an$ repopulate the miew

-orce " fast if possi&le complete if not.

Show all materiali<ed and resfresh times

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set li$es . paes 333col last_re!resh !ormat a2select o5$er, mie5_$ame, to_char(last_re!resh_+ate, '++%mm% hh24:mi') last_re!resh!rom +&a_mie5sor+er & o5$er, last_re!resh%

Show materiali<ed iew tables and masters

set li$es .col mie5 !ormat a4col master !ormat a4select o5$er // '' // $ame mie5, master_o5$er // '' // master master!rom +&a_mie5_re!resh_times%

Show refresh jobs in dba;jobs

This is useful for spotting failuresset li$es .col o& !ormat 3333

col lo_user !ormat a.<col last !ormat a.<col $eKt !ormat a.<col !ail !ormat 3333col 5hat !ormat a2select o&, lo_user, to_char(last_+ate, '++%mm% hh24:mi') last, to_char($eKt_+ate, '++%mm% hh24:mi') $eKt, !ailures !ail

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, replace(5hat, '"') 5hat!rom +&a_o&s5here 5hat li>e '?+&ms_re!reshre!resh?'%

'anuall" start a refresh

eKecute +&ms_mie5re!resh ('=o5$erm_ta&leC')P

-orce a complete refresh

eKecute +&ms_mie5re!resh ('=o5$erm_ta&leC',';')P

Structure ( &artitions

• 2ist partitione$ ta&les

• 2ist a ta&les partitions

• Show partition si-es for the specifie$ ta&le

• ,oe a partition to a new ta&lespace

• )$$ a partition

• Split a partition

• #rop a partition• Truncate a partition

$ist partitioned tables

set paes 333 li$es .col ta&le_$ame !ormat a4select ta&le_$ame

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, partitio$i$_tpe tpe, partitio$_cou$t partitio$s!rom +&a_part_ta&les5here o5$er 8 'Lo5$er'or+er & .%

$ist a tables partitions

set paes 333 li$es .col hih_alue !ormat a2col ta&lespace_$ame !ormat a2select partitio$_$ame, ta&lespace_$ame, hih_alue!rom +&a_ta&_partitio$s5here ta&le_o5$er 8 'Lo5$er'a$+ ta&le_$ame 8 'Lta&le_$ame'or+er & partitio$_positio$%

Show partition si<es for the specified table

set paes 333 li$es .

col ta&lespace_$ame !ormat a2col $um_ro5s !ormat 333,333,333select ppartitio$_$ame, pta&lespace_$ame, p$um_ro5s, ceil(s&tes % .24 % .24) m&!rom +&a_ta&_partitio$s p, +&a_seme$ts s5here pta&le_o5$er 8 so5$era$+ ppartitio$_$ame 8 spartitio$_$ame

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a$+ pta&le_$ame 8 sseme$t_$amea$+ pta&le_o5$er 8 'Lo5$er'a$+ pta&le_$ame 8 'Lta&le_$ame'or+er & partitio$_positio$%

'oe a partition to a new tablespace

alter ta&le =ta&le_$ameC

moe partitio$ =partitio$_$ameCta&lespace =ta&lespace_$ameC$oloi$%

Add a partition

alter ta&le =ta&le_$ameCa++ partitio$ =partitio$_$ameC alues less tha$ (=alueC)ta&lespace =ta&lespace_$ameC%

or...alter ta&le =ta&le_$ameCa++ partitio$ =partitio$_$ameC alues (=alueC)

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ta&lespace =ta&lespace_$ameC%

Split a partition

alter ta&le =ta&le_$ameCsplit partitio$ =partitio$_$ameC at (=alueC)i$to (partitio$ =partitio$_$ameC, partitio$ =partitio$_$ameC)up+ate lo&al i$+eKes

%

Drop a partition

alter ta&le =ta&le_$ameC +rop partitio$ =partitio$_$ameC%

Truncate a partition

alter ta&le =ta&le_$ameC tru$cate partitio$ =partitio$_$ameC%

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&erformance ( =eneral

• Show currentl! e6ectuing s>l

• Session statistics

• (esource intensie s>l

• 3ile io stats

• In session tracing• switch on eent 500FG

• (ows per &lock

• Show the &uffer cache a$isor!

Show currentl" e:ectuing s#l

select sJl_teKt!rom #sJlarea5here users_eKecuti$ C %

Session statistics

select s$$ame, stalue!rom #sesstat st, #stat$ame s$5here stAII; 8 s$AII;a$+ stBA6*F C a$+ stID 8 LIDor+er & alue +esc%

Resource intensie s#l

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change ;59 to match &lock si-eselect sJl_teKt, eKecutio$s, to_char((((+is>_rea+s9&u!!er_ets)%eKecutio$s) 7 R.32)%.4R<SE,'3,333,333,33')

  as total_ets_per_eKec_m&

, to_char((( +is>_rea+s %eKecutio$s) 7 R.32)%.4R<SE,'3,333,333,33')  as +is>_rea+s_per_eKec_m&

, to_char((( &u!!er_ets %eKecutio$s) 7 R.32)%.4R<SE,'3,333,333,33')

  as &u!!er_ets_per_eKec_m&, parsi$_user_i+!rom #sJlarea5here eKecutio$s C .or+er & E +esc%

-ile io stats

(e>uires time$8statistics"trueset li$es R paes 333

col !$ame hea+i$ "ile Name" !ormat aEcol siem& hea+i$ "ie(M&)" !ormat 33,333col phr+s hea+i$ "Gea+s" !ormat 333,333,333col rea+tim hea+i$ "ime" !ormat 33333col ph5rts hea+i$ "rites" !ormat 3,333,333col 5ritetim hea+i$ "ime" !ormat 33333select lo5er($ame) !$ame, (&tes % .4R<SE) siem&, phr+s, rea+tim, ph5rts, 5ritetim!rom #+ata!ile +!

, #!ilestat !s5here +!!ile 8 !s!ileor+er & .%

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In session tracing

To switch it on4eKec +&ms_sstemset_sJl_trace_i$_sessio$ (=si+C, =serialC, true)P

To switch it off4eKec +&ms_sstemset_sJl_trace_i$_sessio$ (=si+C, =serialC, !alse)P

switch on eent /00B

To switch it on4alter sessio$ set ee$ts '.4E trace $ame co$teKt !oreer, leel R'P

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To switch it off4alter sessio$ set ee$ts '.4E trace $ame co$teKt o!!'P

 Note. use tkprof to interpret the results.

Rows per bloc* 

select a(ro5_cou$t) a, maK(ro5_cou$t) maK, mi$(ro5_cou$t) mi$!rom (  select cou$t(7) ro5_cou$t

  !rom Lta&le_$ame  roup & su&str(ro5i+, ., .<)  )%

Show the buffer cache adisor"

 Note. The current setting is halfwa! $own an$ has a rea$ factor of one.set li$es . paes 333col est_m& !ormat 33,333col est+_phsical_rea+s !ormat 333,333,333,333,333

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select sie_!or_estimate est_m&, est+_phsical_rea+_!actor, est+_phsical_rea+s!rom #+&_cache_a+ice5here $ame 8 'DFA*6'or+er & sie_!or_estimate%

$&8cache8a$ice nee$s to &e on for the a&oe to work alter sstem set +&_cache_a+ice8o$P

&erformance ( $oc*s D'$

• Show sessions that are &locking each other

• Show locke$ o&7ects

• Show which row is locke$

• 2ist locks

Show sessions that are bloc*ing each other

select 'ID ' // l.si+ //' is &loc>i$ ' // l2si+ &loc>i$!rom #loc> l., #loc> l25here l.&loc> 8. a$+ l2reJuest C a$+ l.i+.8l2i+.a$+ l.i+28l2i+2%

Show loc*ed objects

set li$es . paes 333col user$ame !ormat a2col sess_i+ !ormat a.

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col o&ect !ormat a2<col mo+e_hel+ !ormat a.select oracle_user$ame // ' (' // sosuser // ')' user$ame, ssi+ // ',' // sserial sess_i+, o5$er // '' //o&ect_$ame o&ect, o&ect_tpe, +eco+e( l&loc>

, , 'Not 1loc>i$', ., '1loc>i$', 2, '0lo&al') status

, +eco+e(loc>e+_mo+e, , 'No$e', ., 'Null', 2, 'Go5- ()', , 'Go5- ()', 4, 'hare', <, '%Go5- ()', E, 'FKclusie', O_;HAG(lmo+e)) mo+e_hel+

!rom #loc>e+_o&ect , +&a_o&ects +

, #loc> l, #sessio$ s5here o&ect_i+ 8 +o&ect_i+a$+ o&ect_i+ 8 li+.a$+ sessio$_i+ 8 ssi+or+er & oracle_user$ame, sessio$_i+%

Show which row is loc*ed

select +oo&ect_$ame, ro5_5ait_o&, ro5_5ait_!ile, ro5_5ait_&loc>, ro5_5ait_ro5, +&ms_ro5i+ro5i+_create (., GO_AI_O1@, GO_AI_I6F,

GO_AI_16O;W, GO_AI_GO)!rom #sessio$ s, +&a_o&ects +o5here si+8Lsi+a$+ sGO_AI_O1@ 8 +oO1@F;_ID%

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Then select the row with that rowi$...select 7 !rom =ta&leC 5here ro5i+8=ro5i+CP

$ist loc*s

colum$ loc>_tpe !ormat a.2colum$ mo+e_hel+ !ormat a.colum$ mo+e_reJueste+ !ormat a.colum$ &loc>i$_others !ormat a2colum$ user$ame !ormat a.F6F; sessio$_i+

, loc>_tpe, mo+e_hel+, mo+e_reJueste+, &loc>i$_others, loc>_i+.GOM +&a_loc> lHFGF loc>_tpe NO IN ('Me+ia Gecoer', 'Ge+o hrea+')%

&erformance ( $oc*s DD$

•

Show all $$l locks in the s!stem• Slightl! more simple ersion of the a&oe

• ?enerate kill statement for $$l locking sessions

Show all ddl loc*s in the s"stem

select +eco+e(lo&>lo&tp,, 'NF O1@F;', ., 'INDF', 2, 'A16F', , ';6*FG',4, 'BIF', <, 'YNONYM', E, 'F*FN;F',

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S, 'GO;FD*GF', R, '*N;ION', 3, 'A;WA0F',.., 'A;WA0F 1ODY', .2, 'GI00FG',., 'YF', .4, 'YF 1ODY',.3, 'A16F AGIION', 2, 'INDF AGIION', 2., '6O1',22, '6I1GAGY', 2, 'DIGF;OGY', 24, '*F*F',2R, '@ABA O*G;F', 23, '@ABA ;6A', , '@ABA GFO*G;F',2, 'INDFYF', , 'OFGAOG',4, 'A16F *1AGIION', <, 'INDF *1AGIION',4, '6O1 AGIION', 4., '6O1 *1AGIION',42, 'MAFGIA6IVFD BIF',4, 'DIMFNION',44, ';ONF', 4E, 'G*6F F', 4S, 'GFO*G;F 6AN',4R, ';ON*MFG 0GO*',<., '*1;GIION', <2, '6O;AION',<<, 'M6 ;HFMA', <E, '@ABA DAA',<S, 'F;*GIY GOI6F', <3, 'G*6F',E2, 'FBA6*AION ;ONF','*NDFINFD'

) o&ect_tpe, lo&>l$ao& o&ect_$ame, p$>lp$mo+ loc>_mo+e_hel+

, p$>lp$reJ loc>_mo+e_reJueste+, sessi+, sesserial, sesuser$ame!rom #sessio$_5ait s5, K#>lo& lo&, K#>lp$ p$, #sessio$ ses5here s5ee$t 8 'li&rar cache loc>'a$+ s5p.ra5 8 lo&>lh+a+ra$+ lo&>lh+a+r 8 p$>lp$h+la$+ p$>lp$mo+ Q8 a$+ p$>lp$use 8 sessa++r%

Slightl" more simple ersion of the aboe

select sesuser$ame, ++lsessio$_i+, sesserial, o5$er // '' // ++l$ame o&ect, ++ltpe, ++lmo+e_hel+!rom +&a_++l_loc>s ++l, #sessio$ ses

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5here o5$er li>e '?useri+?'a$+ ++lsessio$_i+ 8 sessi+%

=enerate *ill statement for ddl loc*ing sessions

select 'alter sstem >ill sessio$ ''' // ++lsessio$_i+ // ',' // sesserial// ''' imme+iateP'!rom +&a_++l_loc>s ++l

, #sessio$ ses5here o5$er li>e '?useri+?'a$+ ++lsessio$_i+ 8 sessi+%

&erformance ( ?aits

• Top ten hotest o&7ects &! touch count

• Waits &! file

• Segment Waits

•

Time waite$ for latches• I$entif! hot &locks

• 2ook at the performance stats for the instance

Top ten hotest objects b" touch count

col o5$er !ormat a2 tru$ccol o&ect_$ame!ormat acol touches !ormat 3,333,333select 7!rom (

select cou$t(7), sum(tch) O*;HF

, u$ame ONFG, o$ame O1@F;_NAMF!rom K#&h K, o&# o, user# u5here Ko& 8 oo&a$+ oo5$er 8 uuserroup & u$ame, o$ame

  or+er & 2 +esc

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)5here ro5$um = ..%

?aits b" file

col $ame !ormat aEselect $ame, cou$t

!rom K#>c&!5ait, #+ata!ile5here i$+K 9 . 8 !ileor+er & 2%

Segment ?aits

select o&ect_$ame, o&, statistic_$ame, alue!rom #seme$t_statistics5here o5$er li>e 'Lo5$er'a$+ statistic_$ame li>e '?5aits?'

a$+ alue C or+er & statistic_$ame, alue +esc%

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Time waited for latches

col ee$t !ormat aselect ee$t, time_5aite+, rou$+(time_5aite+7.% *M (time_5aite+) OBFG(),2) 5ait_pct!rom (

select ee$t

, time_5aite+!rom #sstem_ee$t5here ee$t $ot i$ (

'Null ee$t','clie$t messae','r+&ms ipc repl','smo$ timer','r+&ms ipc messae',' I+le ait','6%6 loc> timer','!ile ope$','pmo$ timer','MON oes to sleep'

,'irtual circuit status','+ispatcher timer','67Net messae !rom clie$t','parallel Juer +eJueue 5ait','pipe et')

u$io$(select $ame, alue!rom #ssstat5here $ame li>e ';* use+ 5he$ call starte+')

)or+er & 2 +esc%

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Identif" hot bloc*s

2ook at all waits for the instancecol ee$t !ormat aselect ee$t, total_5aits, time_5aite+

!rom #sstem_ee$t5here ee$t li>e '?5ait?'or+er & 2,%

If there are lots of '$ata &lock' waits get a &reak+$own of themselect 7!rom #5aitstat%

Then run this to i$entif! the file &lock an$ reason co$e...select p. "ile ", p2 "1loc> ", p "Geaso$ ;o+e"!rom #sessio$_5ait5here ee$t 8 '&u!!er &us 5aits'%

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 Note. ou might nee$ to run this a few times &efore an!thing is $ispla!e$.

$oo* at the performance stats for the instance

select $$ame, salue!rom #stat$ame $, #ssstat s

5here $statistic 8 sstatisticor+er & $class, $$ame%

&erformance ( Statistics

• ?ather $ata&ase statistics

• ?ather stats for a single schema... 

• #elete stats

• ?ather s!stem stats

• E6port/Import optimi-er statistics• Ol$ st!le anal!-e

• Show a count of anal!e-e$ ta&les &roken $own &! schema

• Show ta&les that hae anal!-e $ates ol$er than to$a!

=ather database statistics

?ather stats on the entire $ata&ase...eKecute +&ms_statsather_+ata&ase_statsP

Or...

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eKecute +&ms_statsather_+ata&ase_stats( -estimate_perce$t 8C ., -metho+_opt 8C 'OG A66 ;O6*MN IVF .',-casca+e 8C G*F)P

=ather stats for a single schema+++

eKecute +&ms_statsather_schema_stats(';O')P

Or...eKecute +&ms_statsather_schema_stats( -o5$$ame 8C ';O', -

estimate_perce$t 8C ., -metho+_opt 8C 'OG A66 ;O6*MN IVF .',-casca+e 8C G*F)P

ou can let oracle come up with the estimate figure &! using $&ms8stats.auto8sample8si-e

or...eKecute +&ms_statsather_schema_stats( -o5$$ame 8C 'Y', -casca+e 8C G*F)P

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Ta&le statisticseKec +&ms_statsather_ta&le_stats('=o5$erC', '=ta&le_$ameC')P

Delete stats

eKec +&ms_stats+elete_+ata&ase_statsP

eKec +&ms_stats+elete_schema_stats(';O')P

eKec +&ms_stats+elete_ta&le_stats(';O', 'FM6OYFF')P

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eKec +&ms_stats+elete_i$+eK_stats(';O', 'FM6OYFF_W')P

=ather s"stem stats

eKecute +&ms_statsather_sstem_stats('tart')P

Wait for a while + i$eal! with the $ata&ase un$er a t!pical workloa$eKecute +&ms_statsather_sstem_stats('top')P

To see the current s!stem statisticsselect p$ame, pal.!rom ssauK_stats#

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5here s$ame 8 'YA_MAIN'%

E:port)Import optimi<er statistics

*reate a ta&le to hol$ the statistics...eKec +&ms_statscreate_stat_ta&le(o5$$ame 8C 'Y',-statta& 8C 'pro+_stats', t&lspace 8C '*FG')P

1opulate the ta&le with the current stats...eKec +&ms_statseKport_schema_stats(o5$$ame 8C ';O',-stato5$8C'Y', statta&8C'pro+_stats')P

)t this point !ou nee$ to45 take an e6port of the 'pro$8stats' ta&le

import 'pro$8stats' into the target $ata&aseH loa$ the statistics using this comman$...eKec +&ms_statsimport_schema_stats(o5$$ame 8C ';O',-stato5$8C'Y', statta&8C'pro+_stats')P

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,ld st"le anal"<e

a$ale ta&le emploees compute statisticsP

a$ale ta&le emploees estimate statistics sample . ro5sP

a$ale ta&le emploees estimate statistics sample .< perce$tP

a$ale i$+eK emploees_i$+ compute statisticsP

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Show a count of anal"e<ed tables bro*en down b" schema

set paes 333 li$es .select ao5$er, atotal_ta&les ta&les, $l(&a$ale+_ta&les,) a$ale+!rom (select o5$er

, cou$t(7) total_ta&les

!rom +&a_ta&lesroup & o5$er) a

, (select o5$er, cou$t(last_a$ale+) a$ale+_ta&les!rom +&a_ta&les5here last_a$ale+ is $ot $ullroup & o5$er) &

5here ao5$er 8 &o5$er (9)a$+ ao5$er $ot i$ ('Y', 'YFM')or+er & atotal_ta&les - $l(&a$ale+_ta&les,) +esc%

Show tables that hae anal"<e dates older than toda"

This is useful if !ou are running an anal!-e an$ want to see how much is left to $o

select cou$t(last_a$ale+) le!t_to_+o!rom +&a_ta&les5here o5$er 8 'Lschema'a$+ tru$c(last_a$ale+) = tru$c(ss+ate)or+er & .%

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&erformance ( Quer" Tuning

• *reate a plan ta&le

• )utotrace

•

E6plain plan• 3in$ a >uer!'s hash

• ?ra& the s>l associate$ with a hash

• 2ook at a >uer!'s stats in the s>l area

.reate a plan table

TU%r+&ms%a+mi$%utlKpla$sJl

Autotrace

To switch it on4colum$ pla$_plus_eKp !ormat a.

set autotrace o$ eKplai$ Displas the eKecutio$ pla$ o$lset autotrace traceo$l eKplai$ +o$t ru$ the Juerset autotrace o$ ho5s the eKecutio$ pla$ as 5ell as statistics o! thestateme$tset autotrace o$ statistics Displas the statistics o$lset autotrace traceo$l Displas the eKecutio$ pla$ a$+ the statistics

To switch it off4set autotrace o!!

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E:plain plan

eKplai$ pla$ !orselect

or...eKplai$ pla$ set stateme$t_i+ 8 '&a+.' !orselect

Then to see the output...set li$es . paes 333TU%r+&ms%a+mi$%utlKpls

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-ind a #uer"@s hash

1ut something uni>ue in the like clauseselect hash_alue, sJl_teKt!rom #sJlarea5here sJl_teKt li>e '?IMIN06INW?O6DFGGF?'

%

=rab the s#l associated with a hash

select sJl_teKt!rom #sJlarea5here hash_alue 8 'Lhash'%

$oo* at a #uer"@s stats in the s#l area

select eKecutio$s, cpu_time, +is>_rea+s, &u!!er_ets, ro5s_processe+, &u!!er_ets % eKecutio$s!rom #sJlarea

5here hash_alue 8 'Lhash'%

&erformance ( 'emor"

• S?) &reak$own

• 1?) usage &! username

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• #ispla! pool usage

S=A brea*down

set li$es . paes 333col &tes !ormat 333,333,333

compute sum o! &tes o$ pool&rea> o$ pool s>ip .select pool, $ame, &tes!rom #sastator+er & pool, $ame%

&=A usage b" username

select stsi+ "ID",s$$ame "YF",ceil(stalue % .24 % .24) "M1"

!rom #sesstat st,#stat$ame s$5here ststatistic 8 s$statistica$+ si+ i$ (select si+

!rom #sessio$5here user$ame li>e 'Luser')

a$+ upper(s$$ame) li>e '?0A?'or+er & stsi+,

 stalue +esc

/

Displa" pool usage

select $ame, sum(&tes)!rom #sastat5here pool li>e 'share+ pool'roup & $ame%

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&erformance ( Statspac* 

• Take a snapshot

• #elete one or more snapshots

• ?enerate a report

• 2ist snapshots

• Install statspack• =ninstall statspack

• Sche$ule an$ hourl! snapshot

Ta*e a snapshot

eKec statspac>s$apP

Or to specif! a leel...eKec statspac>s$ap(i_s$ap_leel 8C E, i_mo+i!_parameter 8C 'true')P

2eel 0 + This leel captures general statistics inclu$ing roll&ack segment row cache S?)

s!stem eents &ackgroun$ eents session eents s!stem statistics wait statistics lock statistics

an$ 2atch information.

2eel + This leel inclu$es capturing high resource usage SC2 Statements along with all $ata

capture$ &! lower leels.

2eel G + This leel inclu$es capturing SC2 plan an$ SC2 plan usage information for high

resource usage SC2 Statements along with all $ata capture$ &! lower leels.

2eel J + This leel captures segment leel statistics inclu$ing logical an$ ph!sical rea$s row

lock itl an$ &uffer &us! waits along with all $ata capture$ &! lower leels.

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2eel 50 + This leel inclu$es capturing *hil$ 2atch statistics along with all $ata capture$ &!

lower leels.

Delete one or more snapshots

TU%r+&ms%a+mi$%sppureP

=enerate a report

TU%r+&ms%a+mi$%spreportsJl

$ist snapshots

col "Date%ime" !ormat aselect s$ap_i+, s$ap_leel, to_char(s$ap_time,'HH24:MI: DD-MM-YYYY') "Date%ime"!rom stats#s$apshot, #+ata&aseor+er & s$ap_i+%

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Install statspac* 

5. *reate a ta&lespace minimum si-e 500,@

. (un...TU%r+&ms%a+mi$%spcreate

Uninstall statspac* 

TU%r+&ms%a+mi$%sp+rop

Schedule and hourl" snapshot

TU%r+&ms%a+mi$%spautosJl

 Note. This uses $&ms87o& so 7o&8>ueue8processes nee$s to &e set greater than 0.

To see the 7o&4select o&, 5hat!rom +&a_o&s%

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To $elete the 7o&4eKec +&ms_o&remoe(=o& $um&erC)P

&erformance ( A?R 

• #ispla! a list of snapshots

• 1ro$uce a report

• To see the snapshot interal an$ retention perio$

• *hange the snapshot interal

• *hange the retention perio$

• ,anuall! take a snapshot

• 2ist all &aselines

• *reate a &aseline

• (emoe a &aseline

• Ena&le/#isa&le automatic snapshots

• Time mo$el >ueries

• 1ro$uce an )ctie Session Bistor! )SB report

Displa" a list of snapshots

set li$es . paes 333select s$ap_i+, s$ap_leel, to_char(&ei$_i$teral_time, '++%mm% hh24:mi:ss') &ei$!rom +&a_hist_s$apshotor+er & .%

&roduce a report

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TU%r+&ms%a+mi$%a5rrptsJl

To see the snapshot interal and retention period

col s$ap_i$teral !ormat acol rete$tio$ !ormat aselect s$ap_i$teral, rete$tio$!rom +&a_hist_5r_co$trol

%

.hange the snapshot interal

 Note. This e6ample changes it to H0 minuteseKec +&ms_5or>loa+_repositormo+i!_s$apshot_setti$s (i$teral 8C )

.hange the retention period

 Note. This e6ample changes it to two weeks 5F $a!seKec +&ms_5or>loa+_repositormo+i!_s$apshot_setti$s (rete$tio$ 8C .47247E)

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'anuall" ta*e a snapshot

eKec +&ms_5or>loa+_repositorcreate_s$apshot

$ist all baselines

set li$es .col &aseli$e_$ame !ormat a4select &aseli$e_i+, &aseli$e_$ame

, start_s$ap_i+, e$+_s$ap_i+!rom +&a_hist_&aseli$eor+er & .%

.reate a baseline

eKec +&ms_5or>loa+_repositorcreate_&aseli$e (=start s$apC,=e$+s$apC,'=$ameC')

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Remoe a baseline

eKec +&ms_5or>loa+_repositor+rop_&aseli$e('=&aseli$e $ameC')

Enable)Disable automatic snapshots

 Note. This 7o& is ena&le$ &! $efaulteKec +&ms_sche+ulere$a&le('0AHFG_A_@O1')

an$ to $isa&le...eKec +&ms_sche+uler+isa&le('0AHFG_A_@O1')

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Time model #ueries

S!stem time mo$elset li$es . paes 333select stat_$ame, alue

!rom #ss_time_mo+elor+er & alue +esc%

Session time mo$elset li$es . paes 333select stat_$ame, alue!rom #sess_time_mo+el5here si+ 8 'Lsi+'or+er & alue +esc%

&roduce an Actie Session Histor" 3ASH4 report

TU%r+&ms%a+mi$%ashrptsJl

Cac*up ( Data=uard

• Startup comman$s

• To remoe a $ela! from a stan$&!

• *ancel manage$ recoer!

• (egister a missing log file

• If 3)2 $oesn't work an$ it sa!s the log is alrea$! registere$

• *heck which logs are missing

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• #isa&le/Ena&le archie log $estinations

• Turn on fal tracing on the primar! $&

• Stop the #ata ?uar$ &roker

• Show the current instance role

• 2ogical stan$&! appl! stop/start

•

See how up to $ate a ph!sical stan$&! is• #ispla! info a&out all log $estinations

• #ispla! log $estinations options

• 2ist an! stan$&! re$o logs

Startup commands

startup $omou$talter +ata&ase mou$t sta$+& +ata&asePalter +ata&ase recoer ma$ae+ sta$+& +ata&ase +isco$$ectP

To remoe a dela" from a standb"

alter +ata&ase recoer ma$ae+ sta$+& +ata&ase ca$celP

alter +ata&ase recoer ma$ae+ sta$+& +ata&ase $o+ela +isco$$ectP

.ancel managed recoer"

alter +ata&ase recoer ma$ae+ sta$+& +ata&ase ca$celP

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Register a missing log file

alter +ata&ase reister phsical lo!ile '=!ullpath%!ile$ameC'P

If -A$ doesn@t wor* and it sa"s the log is alread" registered

alter +ata&ase reister or replace phsical lo!ile '=!ullpath%!ile$ameC'P

If that $oesn't work tr! this...shut+o5$ imme+iatestartup $omou$talter +ata&ase mou$t sta$+& +ata&asePalter +ata&ase recoer automatic sta$+& +ata&aseP

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wait for the recoer! to finish + then cancelshut+o5$ imme+iatestartup $omou$talter +ata&ase mou$t sta$+& +ata&asePalter +ata&ase recoer ma$ae+ sta$+& +ata&ase +isco$$ectP

.hec* which logs are missing

(un this on the stan$&!...select localthrea+, localseJue$ce !rom

(select threa+  , seJue$ce

!rom #archie+_lo5here +est_i+8.) local

5here localseJue$ce $ot i$(select seJue$ce

  !rom #archie+_lo  5here +est_i+82 a$+

threa+ 8 localthrea+)%

Disable)Enable archie log destinations

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alter sstem set lo_archie_+est_state_2 8 '+e!er'Palter sstem set lo_archie_+est_state_2 8 'e$a&le'P

Turn on fal tracing on the primar" db

alter sstem set 6O0_AG;HIBF_GA;F 8 .2RP

Stop the Data =uard bro*er

alter sstem set +_&ro>er_start8!alse%

Show the current instance role

select +ata&ase_role!rom #+ata&ase%

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$ogical standb" appl" stop)start

Stop...alter +ata&ase stop loical sta$+& applP

Start...alter +ata&ase start loical sta$+& applP

See how up to date a ph"sical standb" is

(un this on the primar!set $um5i+th .<select maK(seJue$ce) curre$t_seJ!rom #lo%

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Then run this on the stan$&!set $um5i+th .<select maK(applie+_seJ) last_seJ!rom #archie_+est_status%

Displa" info about all log destinations

To &e run on the primar!set li$es .set $um5i+th .<

colum$ ID !ormat 33colum$ "G6s" !ormat 33colum$ actie !ormat 33col tpe !ormat a4

select +s+est_i+ i+, a+status, +s+ata&ase_mo+e +&_mo+e, a+archier tpe, +srecoer_mo+e, +sprotectio$_mo+e, +ssta$+&_lo!ile_cou$t "G6s", +ssta$+&_lo!ile_actie actie

, +sarchie+_seJ!rom #archie_+est_status +s, #archie_+est a+5here +s+est_i+ 8 a++est_i+a$+ a+status Q8 'INA;IBF'or+er &

+s+est_i+%

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Displa" log destinations options

To &e run on the primar!set $um5i+th R li$es .colum$ i+ !ormat 33select +est_i+ i+, archier

, tra$smit_mo+e, a!!irm, as$c_&loc>s as$c, $et_timeout $et_time, +ela_mi$s +ela, reope$_secs reope$, reister,&i$+i$!rom #archie_+estor+er &

+est_i+%

$ist an" standb" redo logs

set li$es . paes 333col mem&er !ormat aS

select stroup, stseJue$ce, ceil(st&tes % .4R<SE) m&, l!mem&er!rom #sta$+&_lo st, #lo!ile l!5here stroup 8 l!roup%

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Cac*up ( -lashbac* 

• To put the session &ack in time

• *op! ol$ $ata into a new ta&le

• E6port a $ata&ase from a point in time• 3in$ the current S*N num&er

• Set the $ata&ase recoer! $irector! an$ si-e

• Set the flash&ack $ata&ase retention target

• Turn on flash&ack $ata&ase

• What is the earliest time the $ata&ase can &e flashe$ &ack toD

• ?et a list of times an$ scn num&ers

• 3lash the $ata&ase &ack

To put the session bac* in time

 Note. un$o8management must &e auto Note. Take a look at un$o8retention to get an i$ea of how far &ack !ou might &e a&le to go.

 Note. This can't &e run as s!s + s!stem works thougheKec +&ms_!lash&ac>e$a&le_at_time(to_+ate('2E-A*0-24 .2::', 'YYYY-MON-DDHH24:MI:'))P

To $isa&le flash&ack run...eKec +&ms_!lash&ac>+isa&leP

.op" old data into a new table

3irst create an empt! cop! of the source ta&le...create ta&le ol+_test_ta&leta&lespace a$+

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as select 7!rom test_ta&le5here ro5$um = .%

 Now insert the ol$ $ata into it...i$sert %79 AFND 7% ol+_test_ta&le

(select 7 !rom test_ta&le as o! timestampto_timestamp('24-A*0-E .2::','DD-MON-YY HH24:MI:'))

%

E:port a database from a point in time

eKp % !ile8!ull_scr3+mp lo8!ull_scr3lo !lash&ac>_time8O_IMFAM('.-3-2E 3::', 'DD-MM-YYYY HH24:MI:')

eKp % par!ile8!ull_scr3par

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 parfile...useri+8sstem%777777!ile8!ull_scr3+mplo8!ull_scr3lo!lash&ac>_time8'2E-3-. .2::'

-ind the current S.% number

select +&ms_!lash&ac>et_sstem_cha$e_$um&er !rom +ual%

Set the database recoer" director" and si<e

These settings are $!namicalter sstem set +&_recoer_!ile_+est8'=pathC' scope8&oth%alter sstem set +&_recoer_!ile_+est_sie8=sieC scope8&oth%

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Set the flashbac* database retention target

alter sstem set +&_!lash&ac>_rete$tio$_taret8=mi$utesC scope8&oth%

Turn on flashbac* database

shut+o5$ imme+iatestartup mou$talter +ata&ase !lash&ac> o$P

alter +ata&ase ope$P

?hat is the earliest time the database can be flashed bac* to!

select ol+est_!lash&ac>_sc$ sc$, to_char(ol+est_!lash&ac>_time, 'hh24:mi:ss ++%mm%') ol+est_time!rom #!lash&ac>_+ata&ase_lo%

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=et a list of times and scn numbers

set paes 333select sc$, to_char(time_+p, 'hh24:mi:ss ++%mm%') time!rom smo$_sc$_timeor+er & sc$%

-lash the database bac* 

shut+o5$ imme+iatestartup mou$t eKclusie

!lash&ac> +ata&ase to sc$ =sc$CP

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or...!lash&ac> +ata&ase to timestamp to_timestamp('22%4%2S .3::','++%mm%hh24:mi:ss')P

alter +ata&ase ope$ resetlosP

'anual upgrade from >i to /0g Release 1

This proce$ure $escri&es the steps necessar! to manuall! upgra$e a $ata&ase from 9..6 to 50..6.

It assumes that !ou hae alrea$! installe$ 50g onto the serer. Of course it is essential that !outake a &ackup of !our $ata&ase &efore attempting an! upgra$e.

• 5. *ompile an! inali$ o&7ects

TU%r+&ms%a+mi$%utlrpsJl

• . *reate a s!sau6 ta&lespace

Baing a s!sau6 ta&lespace is a re>uirement in 50g. So if !ou haen't alrea$! got one create one

now.create ta&lespace ssauK+ata!ile '=!ile_$ameC' sie <.2M

eKte$t ma$aeme$t localseme$t space ma$aeme$t auto%

• H. (un utlu50i.s>l

This utilit! script checks that the $ata&ase is rea$! to &e upgra$e$ to 50g. It also i$entifies an!

actions that nee$ to &e taken. The script is locate$ in the 50g oracle home so !ou will nee$ to

specif! the full path to it.

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T%u.%app%oracle%pro+uct%.2%+&_.%r+&ms%a+mi$%utlu.2isJl

(eiew the output an$ make an! necessar! alterations. ,ake a note of how man! inali$ o&7ects

there are.

• F. Shut the $ata&ase $own with either normal or imme$iate

shut+o5$ imme+iate

• . *op! the spfile or pfile an$ the passwor$ file from the e6isting home to the 50g one.

cp #ZOGA;6F_HOMF[%+&s%7#ZOGA;6F_ID[7 =$e5_homeC%+&s%

• G. E$it orata&

)lter /etc/orata& or /ar/opt/oracle/orata& to point to the50g home. Once $one rerun oraen to

 &ring the alteration into effect.

• J. =pgra$e the $ata&ase

sJlplus "% as ss+&a"

startup upra+e

This ne6t &it is the upgra$e itself. It takes roughl! half an hour to complete. Spool the output to a

file so that !ou can reiew it afterwar$.TU%r+&ms%a+mi$%catupr+sJl

• ;. (ecompile an! inali$ o&7ects

TU%r+&ms%a+mi$%utlrpsJl

*ompare the num&er of inali$ o&7ects with the num&er note$ in step H. It shoul$ hopefull! &e the

same or less.

• 9. Then check the status of the upgra$e

TU%r+&ms%a+mi$%utlu.2ssJl

• 50. )lter or remoe initialisation parameters

Temporaril! creating a pfile is the easiest wa!.create p!ile !rom sp!ileP

shut+o5$ imme+iate

i #ZOGA;6F_HOMF[%+&s%i$it#ZOGA;6F_ID[ora

)lter/remoe parameters i$entifie$ in step 9. Set compati&le to 50..0.0.0

startup

create sp!ile !rom p!ileP

shut+o5$ imme+iate

startuphat's itQ

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This one will $ispla! the hash an$ the SC2 itself4

set paes 333 li$es .&rea> o$ hash_alueselect hash_alue, sJl_teKt

!rom #sJlteKt5here hash_alue i$ (select a!thash_alue!rom sJl_eKec_&e!ore &e!, sJl_eKec_a!ter a!t5here a!teKecutio$s C &e!eKecutio$sa$+ a!thash_alue 8 &e!hash_alue (9)

)or+er &hash_alue

, piece%

• . Ti$! up

#on't forget to remoe the snapshot ta&les once !ou'e finishe$4• +rop ta&le sJl_eKec_&e!ore

• %

•

• +rop ta&le sJl_eKec_a!ter

• %