BlogJava-愚僧-随笔分类-oraclehttp://www.blogjava.net/ilqjs/category/53345.html赢与输的差别通常是--不放弃zh-cnTue, 26 Feb 2013 01:45:22 GMTTue, 26 Feb 2013 01:45:22 GMT60Oracle集合运算符 交集 并集 差集http://www.blogjava.net/ilqjs/archive/2013/02/26/395719.htmlywmywmTue, 26 Feb 2013 01:33:00 GMThttp://www.blogjava.net/ilqjs/archive/2013/02/26/395719.htmlhttp://www.blogjava.net/ilqjs/comments/395719.htmlhttp://www.blogjava.net/ilqjs/archive/2013/02/26/395719.html#Feedback0http://www.blogjava.net/ilqjs/comments/commentRss/395719.htmlhttp://www.blogjava.net/ilqjs/services/trackbacks/395719.html语法:
(select ...)
union [all] | intersect | minus
(select ...)

union              并集,排重, 排序
union all          并集, 排重
intersect         交集
minus             差

from : http://1632004.blog.163.com/blog/static/29991497201282653334529/


ywm 2013-02-26 09:33 发表评论
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