簡單介紹:MS-SQL數據庫開發常用匯總
1.按姓氏筆畫排序:
Select * From TableName Order By CustomerName Collate Chinese_PRC_Stroke_ci_as |
2.數據庫加密:
select encrypt('原始密碼')select pwdencrypt('原始密碼')select pwdcompare('原始密碼','加密后密碼') = 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','加密后密碼') = 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.查看硬盤分區:
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'elseprint '不相等' |
6.殺掉所有的事件探察器進程:
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.記錄搜索:
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.如何修改數據庫的名稱:
sp_renamedb 'old_name', 'new_name' |
9:獲取當前數據庫中的所有用戶表
select Name from sysobjects where xtype='u' and status>=0 |
10:獲取某一個表的所有字段
select name from syscolumns where id=object_id('表名') |
11:查看與某一個表相關的視圖、存儲過程、函數
select a.* from sysobjects a, syscomments b where a.id = b.id and b.text like '%表名%' |
12:查看當前數據庫中所有存儲過程
select name as 存儲過程名稱 from sysobjects where xtype='P' |
13:查詢用戶創建的所有數據庫
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:查詢某一個表的字段和數據類型
select column_name,data_type from information_schema.columnswhere 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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