1、复杂类型查询
select * from PRODUCT where PRD_ID = #value# select * from CATEGORY where CAT_ID = #value#
2、联合查询
select *from PRODUCT, CATEGORYwhere PRD_CAT_ID=CAT_IDand PRD_ID = #value#
posted on 2013-03-30 10:00 阅读( ...) 评论( ...)