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"
else
print "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.sysprocesses
WHERE 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.columns
where table_name = "表名"
[n].[标题]:
Select * From TableName Order By CustomerName
[n].[标题]:
Select * From TableName Order By CustomerName