SQL 数据库开发一些精典的代码

[b]1.按姓氏笔画排序:[/b]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

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'