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select * from dba_tablespaces说明:查看所有表空间---------------------------------------------------------------------drop user waternet cascade说明: 删除了user,只是删除... 阅读全文
posted @ 2015-12-28 13:13
lui
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行转列: SELECT * FROM src_table UNPIVOT (param_value FOR param_name IN (product_color AS 'product_color', product_type AS 'product_type', is_intelligent 阅读全文
posted @ 2015-12-08 15:14
lui
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转http://www.cnblogs.com/252e/archive/2012/09/13/2682817.html查询及删除重复记录的SQL语句1、查找表中多余的重复记录,重复记录是根据单个字段(Id)来判断select * from 表 where Id in (select Id from... 阅读全文
posted @ 2015-11-11 21:31
lui
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