2015年3月11日
PL/SQL : Procedural Language / Structual Query Language and it is an exrension to SQL.
摘要： SQL is not very flexible and it cannot be made to react differently to differing sutuations easily. In SQL queries we normally tell database what we w 阅读全文
posted @ 2015-03-11 22:52 Orchidelle 阅读(262) 评论(0) 推荐(0) 编辑