MyBatis----JdbcType 与Oracle、MySql数据类型对应关系；JdbcType类型和Java类型的对应关系

1. Mybatis JdbcType与Oracle、MySql数据类型对应列表

Mybatis	JdbcType	Oracle	MySql
JdbcType	ARRAY
JdbcType	BIGINT		BIGINT
JdbcType	BINARY
JdbcType	BIT		BIT
JdbcType	BLOB	BLOB	BLOB
JdbcType	BOOLEAN
JdbcType	CHAR	CHAR	CHAR
JdbcType	CLOB	CLOB	修改为TEXT
JdbcType	CURSOR
JdbcType	DATE	DATE	DATE
JdbcType	DECIMAL	DECIMAL	DECIMAL
JdbcType	DOUBLE	NUMBER	DOUBLE
JdbcType	FLOAT	FLOAT	FLOAT
JdbcType	INTEGER	INTEGER	INTEGER
JdbcType	LONGVARBINARY
JdbcType	LONGVARCHAR	LONG VARCHAR
JdbcType	NCHAR	NCHAR
JdbcType	NCLOB	NCLOB
JdbcType	NULL
JdbcType	NUMERIC	NUMERIC/NUMBER	NUMERIC/
JdbcType	NVARCHAR
JdbcType	OTHER
JdbcType	REAL	REAL	REAL
JdbcType	SMALLINT	SMALLINT	SMALLINT
JdbcType	STRUCT
JdbcType	TIME		TIME
JdbcType	TIMESTAMP	TIMESTAMP	TIMESTAMP/DATETIME
JdbcType	TINYINT		TINYINT
JdbcType	UNDEFINED
JdbcType	VARBINARY
JdbcType	VARCHAR	VARCHAR	VARCHAR

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注意到, MyBatis的JdbcType中部分没有对应到Oracle和Mysql的数据类型中(或许由于自己遗漏)，不过不用担心，后续大家碰到再具体分

2.JdbcType类型和Java类型的对应关系

SQL Server 类型	JDBC 类型 (java.sql.Types)	Java 语言类型
bigint	BIGINT	long
timestamp binary	BINARY	byte[]
bit	BIT	boolean
char	CHAR	String
decimal money smallmoney	DECIMAL	java.math.BigDecimal
float	DOUBLE	double
int	INTEGER	int
image varbinary(max)	LONGVARBINARY	byte[]
varchar(max) text	LONGVARCHAR	String
nchar	CHAR NCHAR (Java SE 6.0)	String
nvarchar	VARCHAR NVARCHAR (Java SE 6.0)	String
nvarchar(max) ntext	LONGVARCHAR LONGNVARCHAR (Java SE 6.0)	String
numeric	NUMERIC	java.math.BigDecimal
real	REAL	float
smallint	SMALLINT	short
datetime smalldatetime	TIMESTAMP	java.sql.Timestamp
varbinary udt	VARBINARY	byte[]
varchar	VARCHAR	String
tinyint	TINYINT	short
uniqueidentifier	CHAR	String
xml	LONGVARCHAR SQLXML (Java SE 6.0)	String SQLXML
time	TIME (1)	java.sql.Time (1)
date	DATE	java.sql.Date
datetime2	TIMESTAMP	java.sql.Timestamp
datetimeoffset (2)	microsoft.sql.Types.DATETIMEOFFSET	microsoft.sql.DateTimeOffset

JDBC Type           Java Type  
CHAR                String  
VARCHAR             String  
LONGVARCHAR         String  
NUMERIC             java.math.BigDecimal  
DECIMAL             java.math.BigDecimal  
BIT                 boolean  
BOOLEAN             boolean  
TINYINT             byte  
SMALLINT            short  
INTEGER             int  
BIGINT              long  
REAL                float  
FLOAT               double  
DOUBLE              double  
BINARY              byte[]  
VARBINARY           byte[]  
LONGVARBINARY       byte[]  
DATE                java.sql.Date  
TIME                java.sql.Time  
TIMESTAMP           java.sql.Timestamp  
CLOB                Clob  
BLOB                Blob  
ARRAY               Array  
DISTINCT            mapping of underlying type  
STRUCT              Struct  
REF                 Ref  
DATALINK            java.net.URL

3、 Mybatis JdbcType官方文档

Mybatis JdbcType官方文档