简单介绍：MS

Select * From TableName Order By CustomerName Collate Chinese_PRC_Stroke_ci_as 数据挖掘研究院 

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 数据挖掘研究院 

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) 
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EXEC master..xp_fixeddrives 数据挖掘实验室 

if (select checksum_agg(binary_checksum(*)) from A)
=
(select checksum_agg(binary_checksum(*)) from B)
print "相等"
else
print "不相等" 
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DECLARE hcforeach CURSOR GLOBAL FOR SELECT "kill "+RTRIM(spid) FROM master.dbo.sysprocesses
WHERE program_name IN("SQL profiler",N"SQL 事件探查器")
EXEC sp_msforeach_worker "?" 
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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 Desc 
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sp_renamedb "old_name", "new_name" 
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select Name from sysobjects where xtype="u" and status>=0 
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select name from syscolumns where id=object_id("表名") 
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select a.* from sysobjects a, syscomments b where a.id = b.id and b.text like "%表名%" 
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select name as 存储过程名称 from sysobjects where xtype="P" 数据挖掘研究院 

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 ＜> 0x01 
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select column_name,data_type from information_schema.columns
where table_name = "表名" 
[n].[标题]:
Select * From TableName Order By CustomerName 
[n].[标题]:
Select * From TableName Order By CustomerName 数据挖掘研究院