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查找所有重复标题的记录： SELECT * FROM t_info a WHERE ((SELECT COUNT(*) FROM t_info WHERE Title = a.Title) > 1) ORDER BY Title DESC 一。查找重复记录 1。查找全部重复记录 Select * From 表 Where 重复字段 In (Select 重复字段 Fro

USE [master] GO ALTER DATABASE 表名 SET RECOVERY SIMPLE WITH NO_WAIT GO ALTER DATABASE 表名 SET RECOVERY SIMPLE --简单模式 GO USE 表名 GO DBCC SHRINKFILE (N'表名_log' , 11, TRUN

--- 平均I/O时间长的语句 USE tempdb SELECT TOP 10 (total_logical_reads/execution_count) AS avg_logical_reads, (total_logical_writes/execution_count) AS avg_logical_writes, (total_physical_reads/execut