1.按姓氏筆畫排序:select *
from tablename order by customername collate
chinese_prc_stroke_ci_as
2.資料庫加密:select encrypt('原始密碼')
select
pwdencrypt('原始密碼')
select
pwdcompare('原始密碼','加密後密碼') = 1--相同；否則不相同
encrypt('原始密碼')
select
pwdencrypt('原始密碼')
select
pwdcompare('原始密碼','加密後密碼') = 1--相同；否則不相同
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.檢視硬碟分割槽:exec
master..xp_fixeddrives
5.比較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.殺掉所有的事件探察器程序: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.記錄搜尋:開頭到n條記錄
select top n * from 表
-------------------------------
n到m條記錄(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到結尾記錄
select top n * from 表 order by id desc
8.如何修改資料庫的名稱:sp_renamedb 'old_name', 'new_name'
9：獲取當前資料庫中的所有使用者表
select name
from sysobjects where xtype='u' and status>=0
10：獲取某乙個表的所有字段
select name
from syscolumns where id=object_id('表名')
select a.*
from sysobjects a, syscomments b where a.id = b.id and b.text like '%表名%'
12：檢視當前資料庫中所有儲存過程
select name as 儲存過程名稱
from sysobjects where xtype='p'
13：查詢使用者建立的所有資料庫
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：查詢某乙個表的字段和資料型別
select column_name,data_type
from information_schema.columns
where table_name = '表名'
[n].[標題]:select *
from tablename order by customername
[n].[標題]:select *
from tablename order by customername
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1.按姓氏筆畫排序 select from tablename order by customername collate chinese prc stroke ci as 2.資料庫加密 select encrypt 原始密碼 select pwdencrypt 原始密碼 select pwdco...
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