SQL开发与数据库管理笔记，看过的都说好！（上）

Select * From TableName
Order By CustomerName
Collate Chinese_PRC_Stroke_ci_as

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
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

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)

EXEC master..xp_fixeddrives

if (select checksum_agg(binary_checksum(*)) from A)
     =
    (select checksum_agg(binary_checksum(*)) from B)
print '相等'
else
print '不相等'

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 '?'

--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

select top 10 recid from A
where recid not  in
(select top 30 recid from A)

select Name 
from sysobjects
where xtype='u' and status>=0

--方法一：
select name from syscolumns
where id=object_id('表名')
--方法二：
select name from syscolumns
where id in (
select id from sysobjects
where type = 'u' and name = '表名'
)

select a.*
from sysobjects a, syscomments b
where a.id = b.id and b.text like '%表名%'

select name as 存储过程名称
from sysobjects
where xtype='P'

--方法一
select * from master..sysdatabases D
where sid not in(
select sid from master..syslogins
where name='sa')
--方法二
select dbid, name AS DB_NAME
from master..sysdatabases
where sid <> 0x01

select column_name,data_type
from information_schema.columns
where table_name = '表名'