随笔分类 -  sql

摘要：Sql Server 中一个非常强大的日期格式化函数Select CONVERT(varchar(100), GETDATE(), 0): 05 16 2006 10:57AMSelect CONVERT(varchar(100), GETDATE(), 1): 05/16/06Select CONVERT(varchar(100), GETDATE(), 2): 06.05.16Select CONVERT(varchar(100), GETDATE(), 3): 16/05/06Select CONVERT(varchar(100), GETDATE(), 4): 16.05.06Sele 阅读全文

摘要：把不同数据库实现的语句粘在这里,以供参考. Select a random row with MySQL: SELECT column FROM table ORDER BY RAND() LIMIT 1SELECT column FROM table ORDER BY RANDOM() LIMIT 1Select a random row with PostgreSQL: SELECT colu... 阅读全文