B2EN Presentation Template

-- 2014. 5. 15.

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I. II. (IT ) III. IV. V.

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I. ?

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?3

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?4

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II. (IT )

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6

3,500 100 :

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71) : wikipedia.org2) : w3techs.com1)2)2)

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LTR(Left to Right) , 8 . , The quick brown foxjumpsover the lazy dogThe quick brown foxjumpsover the lazy dogThe quick brown foxjumpsover the lazy dogThe quick brown foxjumpsover the lazy dog

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RTL(Right to Left) , : Arabic, Persian, Hebrew9

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BiDi(bi-directional) Chinese , 10

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, , , 11

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!12" . () "Oracle said,

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character set encoding13SOSencoding

decodingSOS

character set

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character set

character encoding ,

code page IBM

, superset/subset , strict superset : 14

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III.

vs EUC-KRCP949

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ASCIIAmerican Standard Code for Information Interchange 7bit : 27(128)(10), (52), (32), (33), (1) KS X 1003 ASCII 16

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Extended ASCII 7bit 1bit ( )17CP437ISO/IEC 8859-1IBM PC MS-DOS , , line HTML CP437 CP1252 (ISO/IEC 8859-1 CP1252)

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vs 1985~1995 18,, ) ++ ,, ) 2 (1) + (5) + (5) + (5) : 1 xxxxx yyyyy zzzzz 2,350 . 11,172 ) 3 , 2 2 , , ( ) : , , , : ( )X ( )O ( : ISO-2022)

KSC5601 MS95 Unicode 2.0

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EUC-KR (Extended Unix Code - Korean) (1~2byte)00-7F : 1byte , KS X 1003(ASCII ) .80-FF : 2byte , KS X 1001( KS C 5601) . 1 byte , 1 byte 2 byte

KS C 5601 (ISO 2022 )1byte, 2byte A1~FE ( 94*94=8836) 2,350, 4,888, 1,128, 470 19

ASCII , ,

80xx90xxA0xxB0xxC0xxD0xxE0xxF0xx004080F010203050607090A0B0D0C0E01byte 2byte

004080F010203050607090A0B0D0C0E0

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EUC-KR KSC5601 2,350 2,350 .

20

D1E2 D5A5 E4C5 E8F9

(X)(O), (X)(O), (X)(O), (X)(O), (X)(O)

. .

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CP949 ( )

Microsoft EUC-KR MS95 KSC5601 8,822 EUC-KR EUC-KR CP949 ( EUC-KR )KSC5601 CP949

ASCII , ,

80xx90xxA0xxB0xxC0xxD0xxE0xxF0xx00

4080F010203050607090A0B0D0C0E0

004080F010203050607090A0B0D0C0E01byte 2byte 21

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CP949 ( )

1 byte / 2 byte EUC-KR 1~2 byte

2,350 8,822 ,

8C63 94EE B0A1 B8B6 C164 C8FD

BE C8 B3 E7 C7 CF BC BC BF E4 B9 DD B0 A9 BD C0 B4 CF B4 D9?

22

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IV.

UTF

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Unicode , , , U+xxxx

Unicode Consortium (1989)

ISO/IEC 10646ISO ISO/IEC-10646 (:/, ISO:)24

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251.02.03.15.219911996 2,350 4,306 ISO/IEC 10646-1:1993 1.11993 11,172 (, , , ) . 7,16134,23338,950200194,205 2009107,361() 6.32013110,187 3.0199949,259 216(=65,536) 4Byte , (Supplementary Planes)

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Unicode 1.0 3 11,172 .(65,536 ) 1.0 KSC5601-1987

Unicode 2.095/NT MS 2.0 11,172 ( )

(19) * (21) * (28) = 11,172 KSC5601

26

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CJK(Chinese-Japanese-Korean) Unified Ideographs : EUC-KR, :SHIFT-JIS, : GB18030 4,000 , 40,000 EUC-KR ,,,()

() 27

27

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Basic Multilingual PlaneU+0000 ~ U+FFFF ( 65,536)

11,172 256 20828

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[] [AC] 29

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Supplementary PlaneU+10000 ~ U+10FFFF 65,536 17 , Unicode 6.3 6

BMPSMP0000-FFFF10000-1FFFF20000-2FFFFPlane 0Plane 1Plane 2100000-10FFFFPlane 16F0000-FFFFFPlane 15

, , , , , SIP // Private Use Area Planes

30

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[] 31

U+1D11E

U+0041

U+0414

U+AC00

U+13000

U+1F018

U+1F600

U+1F3E7U+6A02

U+0031 U+6A02U+F914U+F95CU+F9BF

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UTFUCS(Universal Character Set) Transformation Format

32UTF-8UTF-16UTF-32 (1~4 byte) (2, 4 byte) (4 byte) ASCII : 1 byte : 2 byte : 3 byte : 4 byte : 2 byte : 4 byte : 4 byte HTML, MS Windows, Unix OS ASCII ( )Western Script BMP 2byte Unicode Byte Order Mark (=Endian) (4 byte )UTF-16

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UTF-8 Encoding/DecodingEncoding33Source (Unicode)Target (UTF-8) 1234 U+0000 ~ U+007F71270xxxxxxx7U+0080 ~ U+07FF11(2,047-127)=1920110xxxxx10xxxxxx(5+6)=11U+0800 ~ U+FFFF16(65,535-2,047)=634881110xxxx10xxxxxx10xxxxxx(4+6+6)=16U+10000 ~ U+10FFFF201,114,111-65535=1,048,57611110xxx10xxxxxx10xxxxxx10xxxxxx(3+6+6+6)=21

Decoding 0 , 1 .(=ASCII) 110 , 2 . 1110 , 3 . 11110 , 4 . 10 , .

U+AC0011101010 10110000 1000000010101100 000000000xEA 0xB0 0x80

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[] UTF-8 / 16 / 3234

U+1D11E

U+0041

U+AC00UTF-80x410100000100000000:010000010x0041UTF-16UTF-320x0000004100000000:00000000:00000000:01000001Unicode0xEA 0xB0 0x8011101010:10110000:1000000010101100:000000000xAC0000000000:00000000:10101100:000000000x0000AC000xF0 0x9D 0x84 0x9E11110000:10011101:10000100:1001111011011000:00110100:11011101:000111100xD834 0xDD1E00000000:00000001:11010001:000111100x0001D11E(1)(3)(4)(2)(2)(4)(4)(4)(4)

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V. Oracle Database Globalization Support

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Oracle Database Globalization Support36

Oracle Database Globalization SupportLanguage SupportTerritory SupportDate and Time FormatsMonetary and Numeric FormatsCalendar SystemsLinguistic SortingCharacter Set SupportCharacter SemanticsCustomization of Locale and Calendar DataUnicode Support

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Language Support37

System(Menu/Messages)ContentsData(Data Types)DBMS Objects(Object Names)User NamesTable NamesCommentsCHARVARCHARNCHARNVARCHAROracle DatabaseLanguageSupportCharacter Set

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38

SQL> select * from v$nls_parameters;

PARAMETER VALUE------------------------------ ------------------------------NLS_LANGUAGE AMERICANNLS_TERRITORY AMERICANLS_CURRENCY $NLS_ISO_CURRENCY AMERICANLS_NUMERIC_CHARACTERS .,NLS_CALENDAR GREGORIANNLS_DATE_FORMAT DD-MON-RRNLS_DATE_LANGUAGE AMERICANNLS_CHARACTERSET AL32UTF8NLS_SORT BINARYNLS_TIME_FORMAT HH.MI.SSXFF AMNLS_TIMESTAMP_FORMAT DD-MON-RR HH.MI.SSXFF AMNLS_TIME_TZ_FORMAT HH.MI.SSXFF AM TZRNLS_TIMESTAMP_TZ_FORMAT DD-MON-RR HH.MI.SSXFF AM TZRNLS_DUAL_CURRENCY $NLS_NCHAR_CHARACTERSET AL16UTF16NLS_COMP BINARYNLS_LENGTH_SEMANTICS BYTENLS_NCHAR_CONV_EXCP FALSE

19 rows selected.

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KO16KSC5601KO16MSWIN949UTF8AL32UTF8AL16UTF16EUC-KR (KCS5601)CP949UTF-8UTF-8UTF-162,35011,17211,17211,172+, 11,172+, Database Character SetOOOOXNationalCharacter SetXXOXO Binary (Unicode3.0 )

9.210.110.211.111.212.1

2002200320042005200620072008200920102011201220133.13.23.04.04.15.05.15.26.06.16.26.32001200019999.1 (AL32UTF8)Oracle DBMSversionUnicodeversion39

| Character Length Semantic

SQL> desc all_col_comments Name Null? Type ----------------------------- -------- -------------------- OWNER NOT NULL VARCHAR2(30) TABLE_NAME NOT NULL VARCHAR2(30) COLUMN_NAME NOT NULL VARCHAR2(30) COMMENTS VARCHAR2(4000)DBMS Object Name LengthByte/Character Semantics

SQL> create table t1 (c1 varchar2(3000 byte));

Table created.

SQL> desc t1 Name Null? Type ----------------------- -------- ------------------ C1 VARCHAR2(3000)

SQL> create table t2 (c1 varchar2(3000 char));

Table created.

SQL> desc t2 Name Null? Type ----------------------- -------- ------------------ C1 VARCHAR2(3000 CHAR)MAX : 3,000 Character or 4,000 ByteMAX : 3,000 ByteMAX : 30 Byte40

| 41KO16KSC5601KO16MSWIN949AL32UTF8US7ASCII

DB Character set character set () Imp/exp Logical TransformationOracle Database Migration Assistant for Unicode

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2014 B2EN Consulting All Rights Reserved

2014 B2EN Consulting All Rights Reserved