SQL Server中两张表字段存在模糊关系，进行相互更新

1.表Table_A

A_ID	A_CODE
1	FILE
2	DOCUMENT

2.表Table_B

B_ID	B_TYPE
1	FILEINFO
2	DOCUMENTINFO

3.更新Table_A表中A_CODE和表Table_B中B_TYPE字段相似的，Table_A的A_CODE值为Table_B中B_TYPE

UPDATE Table_A SET A_CODE=tab2.B_TYPE 
FROM Table_A as tab1 
JOIN Table_B as tab2 
ON tab2.B_TYPE like '%'+tab1.A_CODE+'%'

备注：CONCAT拼接是mysql的用法，SQL Server  直接使用+进行拼接