vfp中exists用法？SELECT * from jk1 a where exists(select * from jk2 b where left(b.dm,6)a.dm)在SQL
vfp中exists用法？
SELECT * from jk1 a where exists(select * from jk2 b where left(b.dm,6)=a.dm)
在SQL中可以运用，但在vfp中出错“关联字段时出错”
[解决办法]
- SQL code
-- 改为：Select a.* From jk1 a Inner Join jk2 b On Left(b.dm,6)=a.dm)