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SQL Server SELECT TOP N * FROM 表名 ORDER BY NEWID() My SQL SELECT * FROM 表名 ORDER BY RAND() LIMIT N Oracle SELECT * FROM ( SELECT * FROM 表名 ORDER BY DB 阅读全文
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ALTER TRIGGER [dbo].[IsFull] ON [dbo].[BorrowBid] FOR UPDATEASdeclare @AlsoNeedAmount decimal(18,2)declare @GurantFlag intdeclare @AlsoNeedGurantAmoun 阅读全文
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左连接 *=(左表中的数据全部显示出来,右表中没有相关联的数据显示null) select Users.*,Department.name as DepartmentName from Users,Department where users.DepartmentID*=Department.ID 阅读全文