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MS-SQL数据库开发常用汇总
1.按姓氏笔画排序:Select * From TableName Order By CustomerName Collate Chinese_PRC_Stroke_ci_as 2.数据库加密:select encrypt('原始密码')select pwdencrypt('原始密码')select pwdcompare('原始密码','加密后密码') = 1--相同；否则不相同 encrypt('原始密码')select pwdencrypt('原始密码')select pwdcompare('原始密码','加密后密码') = 1--相同；否则不相同3.取回表中字段:declare @list varchar(1000),@sql nvarchar(1000) select @list=@list ',' b.name from sysobjects a,syscolumns b where a.id=b.id and a.name='表A'set @sql='select ' right(@list,len(@list)-1) ' from 表A' exec (@sql)4.查看硬盘分区:EXEC master..xp_fixeddrives5.比较A,B表是否相等:if (select checksum_agg(binary_checksum(*)) from A)=(select checksum_agg(binary_checksum(*)) from B)print '相等'elseprint '不相等'6.杀掉所有的事件探察器进程:DECLARE hcforeach CURSOR GLOBAL FOR SELECT 'kill ' RTRIM(spid) FROM master.dbo.sysprocessesWHERE program_name IN('SQL profiler',N'SQL 事件探查器')EXEC sp_msforeach_worker '?'7.记录搜索:开头到N条记录Select Top N * From 表-------------------------------N到M条记录(要有主索引ID)Select Top M-N * From 表 Where ID in (Select Top M ID From 表) Order by ID Desc----------------------------------N到结尾记录Select Top N * From 表 Order by ID Desc8.如何修改数据库的名称:sp_renamedb 'old_name', 'new_name' 9：获取当前数据库中的所有用户表select Name from sysobjects where xtype='u' and status>=010：获取某一个表的所有字段select name from syscolumns where id=object_id('表名')11：查看与某一个表相关的视图、存储过程、函数select a.* from sysobjects a, syscomments b where a.id = b.id and b.text like '%表名%'12：查看当前数据库中所有存储过程select name as 存储过程名称 from sysobjects where xtype='P'13：查询用户创建的所有数据库select * from master..sysdatabases D where sid not in(select sid from master..syslogins where name='sa')或者select dbid, name AS DB_NAME from master..sysdatabases where sid ＜> 0x0114：查询某一个表的字段和数据类型select column_name,data_type from information_schema.columnswhere table_name = '表名' [n].[标题]:Select * From TableName Order By CustomerName [n].[标题]:Select * From TableName Order By CustomerName
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