MSSQL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_fixeddrives

5.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 Desc

8.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>=0

10：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 ＜> 0x01

14：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