SQL 타입별 비교 (CUBRID, MySQL, Oracle)
CUBRID vs MySQL vs ORACLE SQL 타입별 비교
CUBRID 8.4.1 vs MySQL 5.5.27 vs ORACLE 10g 에 대한 SQL 관련 정보들을 비교한다.
1. CUBRID와 데이터 타입
1). DBMS별 데이터 타입 비교
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구분
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CUBRID
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MySQL
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Oracle
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수치형
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-
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-
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BINARY_FLOAT
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BIGINT
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BIGINT
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-
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NUMERIC(20)
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|||
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DECIMAL
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DECIMAL
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DECIMAL
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DOUBLE
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DOUBLE
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BINARY_DOUBLE
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|
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DOUBLE PRECISION
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DOUBLE PRECISION
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-
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FLOAT
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FLOAT
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FLOAT
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INT
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MEDIUMINT
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-
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INT, INTEGER
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|||
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SMALLINT
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|||
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INTEGER
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INTEGER
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-
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MONETARY
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-
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-
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NUMERIC(p, s)
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-
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NUMBER(p, s)
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NUMERIC(38, 0)
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-
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NUMBER(p,0)
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NUMERIC(38, 15)
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-
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NUMBER
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NUMERIC(M,D)
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FLOAT(M,D) or REAL(M,D)
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-
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REAL
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-
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-
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SHORT
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-
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-
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SMALLINT
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BIT(1) (>MySQL-5.0)
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-
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BOOL, BOOLEAN
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|||
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TINYINT
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|||
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SMALLINT[(M)]
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|||
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비트열
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BIT VARYING (1073741823)
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LONGBLOB
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BLOB
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LONG RAW
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|||
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BIT VARYING(16277215)
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MEDIUMBLOB
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|
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BIT VARYING(255)
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TINYBLOB
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-
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BIT VARYING(65535)
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BLOB
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-
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BIT(n)
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BIT( > 1) (>MySQL-5.0)
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-
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BITVARYING(n)
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BINARY(M)
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RAW(n)
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VARBINARY(M)
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|||
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날짜/시간
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DATE
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DATE
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DATE
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: MM/DD/YYYY
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: YYYY-MM-DD
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: YY/MM/DD
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DATETIME
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DATETIME
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TIMESTAMP
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: YYYY-MM-DD HH:MI:SS.FFF
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: YYYY-MM-DD HH:MI:SS
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TIMESTAMP WITH LOCAL TIMESTAMP WITH TIME ZONE
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: YY/MM/DD HH:MI:SS.FFFF
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TIME
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TIME
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-
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: HH:MI:SS
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: HH:MI:SS
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||
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TIMESTAMP
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TIMESTAMP
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TIMESTAMP
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: YYYY-MM-DD HH:MI:SS
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: YYYY-MM-DD HH:MI:SS
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: YY/MM/DD HH:MI:SS.FFFFFFFFF
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-
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YEAR[(2|4)]
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-
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: YYYY
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|||
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문자열
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CHAR
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CHAR
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CHAR
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NCHAR VARYING
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-
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-
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NCHAR
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-
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NCHAR
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VARCHAR(16277215)
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MEDIUMTEXT
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-
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VARCHAR(255)
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TINYTEXT
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INTERVAL DAY TO SECOND
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VARCHAR(255)
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ENUM('value1','value2',...)
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INTERVAL YEAR TO MONTH
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VARCHAR(64)
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-
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ROWID
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VARCHAR(64)
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-
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UROWID
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VARCHAR(65535)
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TEXT
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-
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VARCHAR
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VARCHAR
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NVARCHAR2
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VARCHAR2
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|||
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BLOB
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BLOB
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BLOB
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BLOB
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/CLOB
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CLOB
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-
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CLOB
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집합형
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SET(VARCHAR(255))
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SET('value1','value2',...)
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-
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MULTISET
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-
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-
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LIST
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-
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-
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SEQUENCE
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-
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-
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STRING
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LONGTEXT
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CLOB
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-
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-
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LONG
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-
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-
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NCLOB
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2). 마이그레이션 할 때 권장하는 데이터 타입 맵핑 테이블- MySQL to CUBRID
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Date Types in MySQL
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Date Types in CUBRID
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BIT(1) (>MySQL-5.0)
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SMALLINT
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BIT( > 1) (>MySQL-5.0)
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BIT(n)
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TINYINT
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SMALLINT
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BOOL, BOOLEAN
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SMALLINT
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SMALLINT[(M)]
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SMALLINT
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INT
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MEDIUMINT[(M)]
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INT
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INT, INTEGER[(M)]
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INT
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BIGINT
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BIGINT[(M)]
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BIGINT
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NUMERIC(20)
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FLOAT[(M,D)]
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FLOAT
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DOUBLE[(M,B)]
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DOUBLE
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DECIMAL[(M[,D])]
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DOUBLE
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DATE
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DATE
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DATETIME
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DATETIME
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TIMESTAMP[(M)]
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TIMESTAMP
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TIME
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TIME
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YEAR[(2|4)]
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CHAR(4)
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CHAR(M)
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CHAR(n)
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VARCHAR(M) [BINARY]
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VARCHAR(n)
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BINARY(M)
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BIT VARYING(n)
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VARBINARY(M)
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BIT VARYING(n)
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TINYBLOB
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BIT VARYING(255)
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TINYTEXT
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VARCHAR(255)
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BLOB
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BIT VARYING(65535)
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TEXT
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VARCHAR(65535)
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MEDIUMBLOB
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BIT VARYING(16277215)
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MEDIUMTEXT
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VARCHAR(16277215)
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LONGBLOB
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BIT VARYING (1073741823)
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LONGTEXT
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STRING
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ENUM('value1','value2',...)
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VARCHAR(255)
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SET('value1','value2',...)
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SET(VARCHAR(255))
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FLOAT(M,D) or REAL(M,D) or DOUBLE PRECISION(M,D)
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NUMERIC(M,D)
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Date Types in Oracle
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Date Types in CUBRID
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BINARY_DOUBLE
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DOUBLE
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BINARY_FLOAT
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FLOAT
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BLOB
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BIT VARYING (1073741823)
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CHAR(n)
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CHAR(n)
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CLOB
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STRING
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DATE
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DATE
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DECIMAL(p, s)
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NUMERIC(p, s)
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FLOAT
|
FLOAT
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INTERVAL DAY TO SECOND
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VARCHAR(255)
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INTERVAL YEAR TO MONTH
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VARCHAR(255)
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LONG
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STRING
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LONG RAW
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BIT VARYING (1073741823)
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NCHAR(n)
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CHAR(n)
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NCLOB
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STRING
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NUMBER(p, s)
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NUMERIC(p, s)
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NUMBER
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NUMERIC(38, 15)
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NUMBER(p,0)
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NUMERIC(38, 0)
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NVARCHAR2(n)
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VARCHAR(n)
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RAW(n)
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BIT VARYING(n)
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ROWID
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VARCHAR(64)
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TIMESTAMP
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DATETIME
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TIMESTAMP WITH LOCAL TIME ZONE
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DATETIME
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TIMESTAMP WITH TIME ZONE
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DATETIME
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UROWID
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VARCHAR(64)
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VARCHAR2(n)
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VARCHAR(n)
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2. CUBRID 지원 연산자와 함수
1). CUBRID 지원연산자
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구분
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CUBRID 연산자
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MySQL 지원여부
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|
논리 연산자
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AND, &&
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O
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OR, ||
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O
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|
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XOR
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O
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|
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NOT, !
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O
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|
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비교 연산자
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=
|
O
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<=>
|
O
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|
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<>, !=
|
O
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|
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>
|
O
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|
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<
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O
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|
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>=
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O
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<=
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O
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IS boolean_value
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O
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IS NOT boolean_value
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O
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산술 연산자
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+
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O
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-
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O
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*
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O
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/
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O
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DIV
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O
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%, MOD
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O
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포함 연산자
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A SETEQ B
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X
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A SETNEQ B
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X
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A SUPERSET B
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X
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A SUBSET B
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X
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A SUPERSETEQ B
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X
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A SUBSETEQ B
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X
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비트 연산자
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&
|
O
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|
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|
O
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^
|
O
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|
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~
|
O
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|
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<<
|
O
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>>
|
O
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2). CUBRID 지원함수
|
구분
|
CUBRID 함수(옵션)
|
MySQL지원여부
|
|
비트함수
|
BIT_AND(expr)
|
O
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BIT_OR(expr)
|
O
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|
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BIT_XOR(expr)
|
O
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|
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BIT_COUNT (expr)
|
O
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|
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문자열 함수
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ASCII(str)
|
O
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BIN( n )
|
O
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|
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BIT_LENGTH ( string )
|
O
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|
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CHAR_LENGTH( string )
|
O
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|
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CHARACTER_LENGTH( string )
|
O
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|
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CHR( number_operand )
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CHAR
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|
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CONCAT( string1, string2 [,string3 [, ... [, stringN]...]])
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O
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|
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CONCAT_WS( string1, string2 [,string3 [, ... [, stringN]...]])
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O
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ELT(N, string1, string2, ... )
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O
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ELT(N, string1, string2, ... )
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O
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|
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FIELD( search_string, string1 [,string2 [, ... [, stringN]...]])
|
O
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|
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FIND_IN_SET(str, strlist)
|
O
|
|
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INSERT( str, pos, len, string )
|
O
|
|
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INSTR( string , substring [, position] )
|
O
|
|
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LCASE ( string )
|
O
|
|
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LEFT( string , length )
|
O
|
|
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LENGTH( string )
|
O
|
|
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LENGTHB( string )
|
X
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|
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LOCATE ( substring, string [, position] )
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LOCATE
|
|
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LOAD_FILE
|
||
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LOWER ( string )
|
O
|
|
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LPAD( char1, n, [, char2 ] )
|
O
|
|
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LTRIM( string [, trim_string])
|
O
|
|
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MID( string, position, substring_length )
|
O
|
|
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OCTET_LENGTH ( string )
|
O
|
|
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POSITION ( substring IN string )
|
O
|
|
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REPEAT( string, count )
|
O
|
|
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REPLACE( string, search_string [, replacement_string ] )
|
O
|
|
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REVERSE( string )
|
O
|
|
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RIGHT( string , length )
|
O
|
|
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RPAD( char1, n, [, char2 ] )
|
O
|
|
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RTRIM( string [, trim_string])
|
O
|
|
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SPACE(N)
|
O
|
|
|
STRCMP( string1 , string2 )
|
O
|
|
|
SUBSTR( string, position [, substring_length])
|
O
|
|
|
SUBSTRING( string FROM position [FOR substring_length] )
|
O
|
|
|
SUBSTRING( string, position [, substring_length])
|
O
|
|
|
SUBSTRING_INDEX (string, delim, count)
|
O
|
|
|
TRANSLATE( string, from_substring, to_substring )
|
& |
등록된 코멘트가 없습니다.