摘要: (1).第一类:create view v as select * from table;(2).第二类:create view v as select id,name,age from table;(3).第三类:create view v[vid,vname,vage] as select id... 阅读全文
posted @ 2015-05-24 18:00 紫系流月 阅读(55882) 评论(3) 推荐(2) 编辑