Softverski Alati Baza Podataka

Baza podataka za kolu stranih jezika Milo Kovaevi

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ELEKTROTEHNIKI FAKULTET UNIVERZITETA U BEOGRADU

predmet: SSOOFFTTVVEERRSSKKII AALLAATTII BBAAZZAA PPOODDAATTAAKKAA Domai zadatak

BBBAAAZZZAAA PPPOOODDDAAATTTAAAKKKAAA ZZZAAA KKKOOOLLLUUU SSSTTTRRRAAANNNIIIHHH JJJEEEZZZIIIKKKAAA

Beograd, profesor: Vladimir Bogojevi

27.02.2002. autor: Milo Kovaevi 250/97


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SADRAJ

1. Analiza i dopunjeni opis problema, sa svim uvedenim pretpostavkama.------------------------------------------------- 2 2. Funkcionalna dekompozicija prve vrste --------------------------------------------------------------------------------------- 3 3. Model procesa ---------------------------------------------------------------------------------------------------------------------- 4

3.1 Konteksni nivo --------------------------------------------------------------------------------------------------------------- 4 3.2 Prvi nivo----------------------------------------------------------------------------------------------------------------------- 5 3.3 Drugi nivo--------------------------------------------------------------------------------------------------------------------- 6 3.4 Trei nivo --------------------------------------------------------------------------------------------------------------------- 7 3.5 Hijerarhijsko stablo procesa (Node tree) -------------------------------------------------------------------------------- 8

4. Pregled odnosa objekata ---------------------------------------------------------------------------------------------------------- 9 4.1 Redukovana ema odnosa objekata--------------------------------------------------------------------------------------- 9

5. Pregled svojstava objekata i veza ----------------------------------------------------------------------------------------------10 6. Model podataka -------------------------------------------------------------------------------------------------------------------11 7. Matrica odnosa aktivnosti i entiteta--------------------------------------------------------------------------------------------12 8. SQL ema relacione baze podataka--------------------------------------------------------------------------------------------13 10. Forma za unos podataka u jednu tabelu------------------------------------------------------------------------------------17 11. Forma za unos podataka u dve tabele (master-detail) -------------------------------------------------------------------17 12. Pretraga podataka u jednoj tabeli -------------------------------------------------------------------------------------------18 13. Izvetaj nad dve tabele --------------------------------------------------------------------------------------------------------18


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kola stranih jezika organizuje kurseve stranih jezika. Svaki kurs je vezan za odreeni strani jezik, traje odreeni broj asova, ima svoju cenu kao i nivo i stepen jezika. Za dranje kurseva kola angauje nastavnike. Nastava je organizovana po grupama. Nastavna grupa je vezana za odreeni kurs, ima jednog nastavnika i vie polaznika, i odreen period u kome se dre asovi. Uslov za pohaanje je da je polaznik, po izdatoj profakturi, unapred izvrio uplatu za odreenu nastavnu grupu. Polaznik moe pohaati vie nastavnih grupa. Nastavnik moe predavati na vie nastavnih grupa, ali iz najvie dva strana jezika. Poto polaznici unapred vre uplatu za pohaanje nastave, promena cene u toku nastave nema smisla, ali moe se menjati plata po asu koju dobija nastavnik, i koja se odreuje na nivou jezika, a ne kursa. Nastavnik dobija platu po zavretku predavanja na odreenoj nastavnoj grupi, i to prema broju odranih asova na toj grupi i trenutnoj plati po asu za dati jezik. Sve profakture, uplate i isplate se evidentiraju.


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- kola + Matini podaci + Matini podaci o jeziku * unos podataka o novom jeziku * izmena podataka o jeziku * brisanje podataka o jeziku + Matini podaci o kursu * unos podataka o novom kursu * izmena podataka o kursu * brisanje podataka o kursu + Matini podaci o nastavnoj grupi * unos podataka o novom nastavnoj grupi * izmena podataka o nastavnoj grupi * brisanje podataka o nastavnoj grupi * pretraivanje podataka o nastavnoj grupi + Matini podaci o nastavniku * unos podataka o novom nastavniku * izmena podataka o nastavniku * brisanje podataka o nastavniku + Matini podaci o polazniku * unos podatka o novom studentu * izmena podataka o studentu * brisanje podataka o studentu * pretraivanje podataka o polazniku + Transakcije * prijava nastavnika za nastavnu grupu * izdavanje profakture za polaznika za pohaanje nastavne grupe * uplata polaznika za pohaanje nastavne grupe * prijava polaznika za pohaanje nastavne grupe * registrovanje odranog asa * isplata nastavnika za odrane asove na nastavnoj grupi + Izvetaji * izvetaj o postojeim jezicima * izvetaj o postojeim kursevima * izvetaj o nastavnim grupama ija nastava nije jo poela * izvetaj o aktivnim nastavnim grupama * izvetaj o uplatama pojedinanog polaznika * izvetaj o isplatama pojedinanog nastavnika * izvetaj o svim uplatama i isplatama i profitu * diploma pojedinanog polaznika


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333333333333............ MMMMMMMMMMMMooooooooooooddddddddddddeeeeeeeeeeeellllllllllll pppppppppppprrrrrrrrrrrroooooooooooocccccccccccceeeeeeeeeeeessssssssssssaaaaaaaaaaaa

333333333333............111111111111 KKKKKKKKKKKKoooooooooooonnnnnnnnnnnntttttttttttteeeeeeeeeeeekkkkkkkkkkkkssssssssssssnnnnnnnnnnnniiiiiiiiiiii nnnnnnnnnnnniiiiiiiiiiiivvvvvvvvvvvvoooooooooooo

USED AT: AUTHOR: Milos Kovacevic DATE:REV:PROJECT: Skola Stranih Jezika

22. February 200226. February 2002

NOTES: 1 2 3 4 5 6 7 8 9 10

WORKINGDRAFTRECOMMENDED

PUBLICATION

READER DATE CONTEXT:

TOP

NODE: TITLE: NUMBER:SkolaA-0

0

Skola

polaznici

nastavnici

cene ogranicenja

jezici

izvestaji

racuni

diplome

plate


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333333333333............222222222222 PPPPPPPPPPPPrrrrrrrrrrrrvvvvvvvvvvvviiiiiiiiiiii nnnnnnnnnnnniiiiiiiiiiiivvvvvvvvvvvvoooooooooooo



NOTES: 1 2 3 4 5 6 7 8 9 10

WORKINGDRAFTRECOMMENDEDPUBLICATION


A-0

NODE: TITLE: NUMBER:SkolaA0

1

Obrada Osoblja

2

Racunovodtvo

3

ObradaNastave/Jezika

polaznici

nastavnici

ogranicenjacene

jezici

izvestajioosoblju

racuni

diplome

plate

podaci o osoblju

podaci o uplatama

informacije o kursevima

izvestaji


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NOTES: 1 2 3 4 5 6 7 8 9 10


PUBLICATION


A0

NODE: TITLE: NUMBER:Obrada OsobljaA1

1

Obrada Polaznika

2

Obrada Nastavnika

polaznici

izvestajioosoblju

podaci opolaznicima

nastavnici

izvestaji o polaznicima

izvestaji o nastavnicima

podaci o osoblju

podaci o nastavnicima


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333333333333............444444444444 TTTTTTTTTTTTrrrrrrrrrrrreeeeeeeeeeeeiiiiiiiiiiii nnnnnnnnnnnniiiiiiiiiiiivvvvvvvvvvvvoooooooooooo USED AT: AUTHOR: Milos Kovacevic DATE:

REV:PROJECT: Skola Stranih Jezika25. February 200226. February 2002

NOTES: 1 2 3 4 5 6 7 8 9 10


PUBLICATION


A1

NODE: TITLE: NUMBER:Obrada PolaznikaA1.1

1

Unos podatakao Polazniku

2

Izmena podatakao Polazniku

3

Brisanje podatakao Polazniku

4

PretragaPolaznika

5

GenerisanjeIzvestaja

izvestaji opolaznicima

polaznicipodaci opolaznicima


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USED AT: AUTHOR: Milos Kovacevic DATE: REV: PROJECT: Skola Stranih Jezika

26. February 2002 27. February 2002

NOTES: 1 2 3 4 5 6 7 8 9 10

WORKING DRAFT RECOMMENDED PUBLICATION

0 Skola

1 Obrada Osoblja

2 Racunovodtvo

3 Obrada

Nastave/Jezika

1 Obrada Polaznika Unos podataka o Polazniku Izmena podataka o Polazniku Brisanje podataka o Polazniku Pretraga Polaznika Generisanje Izvestaja

2 Obrada Nastavnika


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444444444444............111111111111 RRRRRRRRRRRReeeeeeeeeeeedddddddddddduuuuuuuuuuuukkkkkkkkkkkkoooooooooooovvvvvvvvvvvvaaaaaaaaaaaannnnnnnnnnnnaaaaaaaaaaaa eeeeeeeeeeeemmmmmmmmmmmmaaaaaaaaaaaa ooooooooooooddddddddddddnnnnnnnnnnnnoooooooooooossssssssssssaaaaaaaaaaaa oooooooooooobbbbbbbbbbbbjjjjjjjjjjjjeeeeeeeeeeeekkkkkkkkkkkkaaaaaaaaaaaattttttttttttaaaaaaaaaaaa

objekti veze Jezik Osoba

(0,N) Kurs Grupa (0,N) UplataIsplataProfaktura

pohadja

objekti veze Jezik Osoba

Nastavnik Polaznik (0,N)

(0,N) Kurs (0,1) Grupa (0,N) Raun Uplata Isplata Profaktura

predaje

pohadja


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OBJEKAT/VEZA SVOJSTVO ifra Jezika Naziv Varijanta

Jezik

Plata po asu Jezika ifra Kursa Nivo Stepen Broj asova

Kurs

Cena Jezika Kurs ifra Grupe Nastavnik Datum poetka Datum kraja

Grupa

Broj odranih asova

Selektor P/N ifra Osobe Ime Prezime Adresa Telefon Adresa e-pote

Osoba

Datum roenja Selektor U/I/P ifra UIP Osoba Grupa Iznos

UplataIsplataProfaktura

Datum Polaznik Pohaa Grupa


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GrupaSifJ: char(4)SifK: char(2)SifG: int

PolaznikNastavnik: charSifO: intDatumPocetka: datetimeDatumKraja: datetimeOdrzanoCasova: tinyint

JezikSifJ: char(4)

Naziv: char(18)Varijanta: char(18)PlataPoCasu: float

OsobaPolaznikNastavnik: charSifO: int

Ime: char(15)Prezime: char(18)Adresa: char(30)Telefon: char(13)ePosta: char(40)DatumRodjenja: datetime

KursSifJ: char(4)SifK: char(2)

Nivo: char(8)Stepen: tinyintBrojCasova: tinyintCena: float

PohadjaPolaznikNastavnik: charSifO: intSifJ: char(4)SifK: char(2)SifG: int

UplataIsplataProfakturaUplataIsplataProfaktura: charSifUIP: int

PolaznikNastavnik: charSifO: intSifJ: char(4)SifK: char(2)SifG: intIznos: floatDatum: datetime

GrupaSifJ (FK)SifK (FK)SifG

Polaznik/Nastavnik (FK)SifO (FK)DatumPocetkaDatumKrajaOdrzanoCasova

JezikSifJ

NazivVarijantaPlataPoCasu

OsobaPolaznik/NastavnikSifO

ImePrezimeAdresaTelefonePostaDatumRodjenja

KursSifJ (FK)SifK

NivoStepenBrojCasovaCena

PohadjaPolaznik/Nastavnik (FK)SifO (FK)SifJ (FK)SifK (FK)SifG (FK)

UplataIsplataProfakturaUplataIsplataProfakturaSifUIP

Polaznik/Nastavnik (FK)SifO (FK)SifJ (FK)SifK (FK)SifG (FK)IznosDatum


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777777777777............ MMMMMMMMMMMMaaaaaaaaaaaattttttttttttrrrrrrrrrrrriiiiiiiiiiiiccccccccccccaaaaaaaaaaaa ooooooooooooddddddddddddnnnnnnnnnnnnoooooooooooossssssssssssaaaaaaaaaaaa aaaaaaaaaaaakkkkkkkkkkkkttttttttttttiiiiiiiiiiiivvvvvvvvvvvvnnnnnnnnnnnnoooooooooooossssssssssssttttttttttttiiiiiiiiiiii iiiiiiiiiiii eeeeeeeeeeeennnnnnnnnnnnttttttttttttiiiiiiiiiiiitttttttttttteeeeeeeeeeeettttttttttttaaaaaaaaaaaa

entitet aktivnost

Jezik Kurs Grupa Osoba Pohaa Uplata Isplata

kola CRUD CRUD CRUD CRUD CRUD CRUD + Obrada osoblja CRUD * Obrada polaznika CRUD : Unos podataka o polazniku

C

: Izmena podataka o polazniku

RU

: Brisanje podataka o polazniku

RD

: Pretraga podataka o polazniku

R

: Generisanje izvetaja o polaznicima

R

* Obrada nastavnika CRUD + Raunovodstvo R R R R R CRUD + Obrada nastave/jezika CRUD CRUD CRUD R CRUD R


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888888888888............ SSSSSSSSSSSSQQQQQQQQQQQQLLLLLLLLLLLL eeeeeeeeeeeemmmmmmmmmmmmaaaaaaaaaaaa rrrrrrrrrrrreeeeeeeeeeeellllllllllllaaaaaaaaaaaacccccccccccciiiiiiiiiiiioooooooooooonnnnnnnnnnnneeeeeeeeeeee bbbbbbbbbbbbaaaaaaaaaaaazzzzzzzzzzzzeeeeeeeeeeee ppppppppppppooooooooooooddddddddddddaaaaaaaaaaaattttttttttttaaaaaaaaaaaakkkkkkkkkkkkaaaaaaaaaaaa CREATE TABLE Osoba ( SifO int, Ime char(15), Adresa char(30), Prezime char(18), Telefon char(13), DatumRodjenja datetime, ePosta char(40), PolaznikNastavnik char(18), PRIMARY KEY (PolaznikNastavnik, SifO) );

CREATE TABLE Jezik ( SifJ char(4), Naziv char(18), Varijanta char(18), PlataPoCasu float, PRIMARY KEY (SifJ) );

CREATE TABLE Kurs ( SifK char(2), SifJ char(4), Nivo char(8), BrojCasova tinyint, Stepen tinyint, Cena float, PRIMARY KEY (SifJ, SifK), FOREIGN KEY (SifJ) REFERENCES Jezik ON DELETE RESTRICT );

CREATE TABLE Grupa ( SifJ char(4), SifK char(2), SifG int, PolaznikNastavnik char(18), SifO int, DatumPocetka datetime, DatumKraja datetime, OdrzanoCasova tinyint, PRIMARY KEY (SifJ, SifK, SifG), FOREIGN KEY (PolaznikNastavnik, SifO) REFERENCES Osoba ON DELETE SET NULL, FOREIGN KEY (SifJ, SifK) REFERENCES Kurs ON DELETE RESTRICT );


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CREATE TABLE Pohadja ( SifO int, SifJ char(4), PolaznikNastavnik char(18), SifK char(2), SifG int, PRIMARY KEY (PolaznikNastavnik, SifO, SifJ, SifK, SifG), FOREIGN KEY (SifJ, SifK, SifG) REFERENCES Grupa ON DELETE CASCADE, FOREIGN KEY (PolaznikNastavnik, SifO) REFERENCES Osoba ON DELETE CASCADE );

CREATE TABLE UplataIsplataProfaktura ( SifUIP int, PolaznikNastavnik char(18), SifO int, SifJ char(4), Iznos float, Datum datetime, SifK char(2), SifG int, UplataIsplataProfaktura char(18), PRIMARY KEY (UplataIsplataProfaktura, SifUIP), FOREIGN KEY (SifJ, SifK, SifG) REFERENCES Grupa ON DELETE SET NULL, FOREIGN KEY (PolaznikNastavnik, SifO) REFERENCES Osoba ON DELETE SET NULL );

Ovo je generisano automatski za ODBC 3.0 iz programa ERWIN 3.5.2 . Potrebna su jo dva trigera za ostvarenje korisnikih ogranienja:

/* zabrana pohadjanja nastavne grupe pre uplate */ CREATE trigger PlatiPaKlati on Pohadja FOR INSERT,UPDATE AS begin declare @errno int, @errmsg varchar(255), @SumaUplata float, @CenaKursa float

SELECT @SumaUplata = SUM(Iznos) FROM UplataIsplataProfaktura u, inserted i WHERE u.UplataIsplataProfaktura='U' AND u.PolaznikNastavnik='P' AND u.SifO=i.SifO AND u.SifJ=i.SifJ AND


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u.SifK=i.SifK AND u.SifG=i.SifG

SELECT @CenaKursa = Cena FROM Kurs k, inserted i WHERE k.SifJ=i.SifJ AND k.SifK=i.SifK

IF (@SumaUplata@max begin select @errno = 30001, @errmsg = ' Zabranjen INSERT - Nastavnik moze predavati najvise 2 jezika!' goto error end

return

error: raiserror @errno @errmsg rollback transaction end


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/* zabrana nastavniku da predaje vise od [max] jezika */ CREATE TRIGGER OgraniceniLingvistaUpd ON Grupa AFTER UPDATE AS

IF UPDATE(SifO)

begin declare @errno int, @errmsg varchar(255), @max int

SELECT @max = 2

IF EXISTS ( SELECT SifO FROM Grupa GROUP BY SifO HAVING COUNT(DISTINCT(SifJ))>@max ) begin select @errno = 30001, @errmsg = 'Zabranjen UPDATE - Nastavnik moze predavati najvise 2 jezika!' goto error end

return

error: raiserror @errno @errmsg rollback transaction end


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111111111111111111111111............ FFFFFFFFFFFFoooooooooooorrrrrrrrrrrrmmmmmmmmmmmmaaaaaaaaaaaa zzzzzzzzzzzzaaaaaaaaaaaa uuuuuuuuuuuunnnnnnnnnnnnoooooooooooossssssssssss ppppppppppppooooooooooooddddddddddddaaaaaaaaaaaattttttttttttaaaaaaaaaaaakkkkkkkkkkkkaaaaaaaaaaaa uuuuuuuuuuuu ddddddddddddvvvvvvvvvvvveeeeeeeeeeee ttttttttttttaaaaaaaaaaaabbbbbbbbbbbbeeeeeeeeeeeelllllllllllleeeeeeeeeeee ((((((((((((mmmmmmmmmmmmaaaaaaaaaaaasssssssssssstttttttttttteeeeeeeeeeeerrrrrrrrrrrr------------ddddddddddddeeeeeeeeeeeettttttttttttaaaaaaaaaaaaiiiiiiiiiiiillllllllllll))))))))))))


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111111111111333333333333............ IIIIIIIIIIIIzzzzzzzzzzzzvvvvvvvvvvvveeeeeeeeeeeettttttttttttaaaaaaaaaaaajjjjjjjjjjjj nnnnnnnnnnnnaaaaaaaaaaaadddddddddddd ddddddddddddvvvvvvvvvvvveeeeeeeeeeee ttttttttttttaaaaaaaaaaaabbbbbbbbbbbbeeeeeeeeeeeelllllllllllleeeeeeeeeeee

Softverski Alati Baza Podataka

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