摘要：
-- 方法1 select a.* from table1 a where not exists(select 1 from table1 b where b.name=a.name and b.gdtime>a.gdtime) -- 方法2 select a.* from table1 a inn 阅读全文
posted @ 2017-11-03 18:38 一佳一 阅读(852) 评论(0) 推荐(0)
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摘要：
-- 方法1 select a.* from table1 a where not exists(select 1 from table1 b where b.name=a.name and b.gdtime>a.gdtime) -- 方法2 select a.* from table1 a inn 阅读全文
posted @ 2017-11-03 18:38 一佳一 阅读(852) 评论(0) 推荐(0) |
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