异构关系数据库（MySql与Oracle）之间的数据类型转换参考

一、MySQL到Oracle的数据类型的转变：

编号	MySQL	ToOracle	Oracle
1	GEOMETRY	BLOB	BLOB
2	GEOMETRYCOLLECTION	BLOB	BLOB
3	MULTILINESTRING	BLOB	BLOB
4	LINESTRING	BLOB	BLOB
5	MULTIPOINT	BLOB	BLOB
6	MULTIPOLYGON	BLOB	BLOB
7	POINT	BLOB	BLOB
8	POLYGON	BLOB	BLOB
9	DECIMAL	INTEGER	Number
10	DECIMAL(10)	INTEGER	Number
11	BLOB	VARCHAR2(2000)	BLOB
12	BLOB(10)	VARCHAR2(2000)	BLOB
13	LONGBLOB	VARCHAR2(2000)	BLOB
14	MEDIUMBLOB	VARCHAR2(2000)	BLOB
15	TINYBLOB	VARCHAR2(2000)	BLOB
16	BINARY(10)	BLOB	RAW
17	VARBINARY(10)	VARCHAR2(2000)	RAW
18	YEAR	DATE	NUMBER(3,0)
19	DOUBLE	NUMBER	BINARY_DOUBLE（NUMBER也可以）
20	FLOAT	NUMBER	BINARY_FLOAT（NUMBER也可以）
21	CHAR(2)	VARCHAR2(2)	CHAR
22	NVARCHAR(10)	VARCHAR2(10)	NVARCHAR
23	TEXT(10)(建表后成为TINYTEXT)	VARCHAR2(85)	CLOB
24	REAL(生成表后成为Double)	NUMBER	NUMBER
25	BIT	VARCHAR2(2000)	RAW
26	ENUM('test1','test2')	VARCHAR2(5)	VARCHAR2
27	SET('test1','test2')	VARCHAR2(11)	VARCHAR2
28	INT	INTEGER	NUMBER
29	TIMESTAMP	DATE	TIMESTAMP
30	BIGINT	INTEGER	NUMBER
31	INT(8)	INTEGER	NUMBER
32	MEDIUMINI(10)	INTEGER	NUMBER
33	SMALLINT(2)	INTEGER	NUMBER
34	TINYINT	INTEGER	NUMBER
35	TINYTEXT	VARCHAR2(85)	CLOB
36	VARCHAR	VARCHAR	VARCHAR
38	DATE	DATE	DATE
39	DATETIME	DATETIME	DATETIME
40	TIME	DATE	VARCHAR
41	LONGTEXT	CLOB	CLOB
42	MEDIUMTEXT	CLOB	CLOB

 二、Oracle到MySQL的数据类型的转变

编号	Oracle	ToMySQL	MySQL
1	BINARY_DOUBLE	TINYTEXT	DOUBLE
2	BINARY_FLOAT	TINYTEXT	FLOAT
3	BLOB	LONGBLOB	BLOB
4	CHAR	VARCHAR(2)	CHAR
5	DATE	UNKNOWN	DATE
6	INTERVAL DAY TOSECOND	TINYTEXT	TINYTEXT
7	INTERVAL YEAR TO MONTH	TINYTEXT	TINYTEXT
8	NUMBER	DOUBLE	NUMBER
9	NVARCHAR2	VARCHAR(20)	NVARCHAR2
10	RAW	VARCHAR(20)
11	TIMESTAMP	UNKNOWN	DATETIME
12	TIMESTAMP(6) WITH LOCAL TIME ZONE	TINYTEXT	TINYTEXT
13	TIMESTAMP(6) WITH TIME ZONE	TINYTEXT	TINYTEXT
14	CLOB	MEDIUMTEXT	MEDIUMTEXT
15	LONG	TINYTEXT	TINYTEXT
16	NCLOB	MEDIUMTEXT	MEDIUMTEXT
17	VARCHAR2	VARCHAR2	VARCHAR2