DB2源端映射到神通目的端

源数据类型	精度	小数位	长度	目的数据类型（默认）	精度	小数位	长度倍数	目的数据类型（可选）
BIGINT				INT8				INT4|INT2|DECIMAL|NUMERIC
INTEGER				INT4				INT8|INT2|DECIMAL|NUMERIC
SMALLINT				INT2				INT4|INT8|DECIMAL|NUMERIC
REAL				FLOAT8
DOUBLE				FLOAT8
DECIMAL	P<=15	s!=0		FLOAT8
DECIMAL	P<=2	s=0		SMALLINT
DECIMAL	2<P<=4	s=0		INT2
DECIMAL	4<P<=18	s=0		INT8
DECIMAL				DECIMAL
DECFLOAT				FLOAT				DECIMAL
CHARACTER				CHAR
VARCHAR			0<=L<=8000	VARCHAR
VARCHAR			8001<=L<=32672	CLOB
LONG VARCHAR				CLOB
GRAPHIC				CHAR			2
VARGRAPHIC			0<=L<=4000	VARCHAR			2
VARGRAPHIC			4001<=L<=16350	CLOB
LONG GRAPHIC			0<=L<=4000	VARCHAR			2
LONG VARGRAPHIC			4001<=L<=16350	CLOB
CLOB				CLOB
DBCLOB				CLOB
BLOB				BLOB
DATE				DATE
TIME				TIME
TIMESTAMP				TIMESTAMP
XML				XML				CLOB