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1、1=1,1=2的使用,在SQL语句组合时用的较多
“where 1=1” 是表示选择全部 “where 1=日志模板2”全部不选,
如:
if @s技巧敏捷打一生肖trWhere !='' 经典语录太经典了霸气
be经典语录太经典了霸气gin
set @str语句排序题SQL = 'count() as Total from [' + @tblName + '] where ' + @strWhere
end
else
begin
set @strSQL = 'count() as Total from [' + @tblName + ']'
end
我经典传奇们可以直接写成
错误!未找到目录项。
set @strSQL = 'count() as Total from [' + @tblName + '] wh语句排序题秒杀技巧ere 1=1 安定 '+ @strWh数据库设计ere 2、收缩数据库
--重建索引
DBC日志大全C REINDEX
DBCC INDEXDEFRAG
--收缩数据和日志
DBCC SHRINKDB
DBCC SHRINKFILE
3、压缩数据库
dbcc shrinkdatabase(dbname)
4、转移数据库给新用户以已存在用户权限
sp_change_use数据库系统rs_login 'update_one','newname','oldname'
go
5、检查备份集
RESTORE VERIFYONLY from disk='E:dvbbs.bak'
6、修复数据库
ALTER DATABASE [dvbbs] S技巧的拼音ET SINGLE_USER
GO
DBCC C经典咏流传HECKDB('dvbbs',repair_allow_data_loss) WITH TABLOCK
GO
ALTER DATABASE [dvbbs] SE数据库原理及应用T MULTI_USER
GO
7、日志日志英文清除
SET NOON
@LogicalFil技巧是什么意思eNa经典咏流传me sysname,
@MaxMinutes INT,
@NewSize INT
USE tablename -- 要操作的数据库名
SELECT @LogicalFileName = 'tablename_log'语句结构, -- 日志文件名
@Ma技巧性转场xMinutes = 1经典生日祝福语大全0, -- Limit on time allowed to wrap log.
@NewSize = 1 --&n语句摘抄bsp;你想设定的日志文件的大小(M)
Setup / initialize
@OriginalSize int
@OriginalSize = size
FROM sysfiles
WHERE name = @LogicalFileName
'Original数据库技术 Size of ' + db_name() + ' LOG is ' +
CONVERT(VAR30),@OriginalSize) + ' 8K pages or ' +
CONVERT(VAR30),(@OriginalSize8/1024)) + 'MB'
FROM sysfiles
WHERE日志怎么写 nam日志模板e = @LogicalFileName
CREATE TABLE DummyTrans
(DummyColumn char (8000) not null)
@Counter INT,
@StartTime DATETI技巧运动ME,
@TruncLog VAR255)
@StartTime = GETDATE(),
@TruncLog经典轩逸为什么便宜 = 'BACKUP LOG ' + db_name() + ' WITH _ONLY'
DBCC SHRINKFILE (@LogicalFileName, @NewSize)
(@TruncLog)
-- Wrap the log if necessary.
WHILE @MaxMinute语句结构s > DATEDIFF (mi, @StartTime, GETDATE()) -- time has not expired
@OriginalSize = (size FROM sysfil经典电影es WHERE name = @LogicalFileName)经典语录太经典了霸气
(@OriginalSize 8语句优美的句子 /1024) > @NewSize
BEGIN -- Outer loop.
@Cou经典轩逸为什么便宜n日志和日记的区别ter = 0
WHILE &n数据库系统bsp; ((@Counter
8、说明:更改某个表
sp_change经典电视剧objectowner 'tablename技巧性转场','dbo'
9、存储更改全部表
CREATE PROCEDURE dbo.User_ChangeObjectOwnerBatch
@OldOwner as NVAR128),
@NewOwner as NVAR128)
AS
@Name&nbs语句覆盖p;&nbs语句排序题秒杀技巧p; as NVAR128)
@Owner as NVAR128)
@OwnerName as NVAR128)
curObject CURSOR FOR
'Name' = name,
 日志英文; 'Owner' &n经典咏流传bsp; = user_name(uid)
from sysobjects经典生日祝福语大全
where user_name(uid经典轩逸为什么便宜)=@OldOwner
order by name
OPEN curObje数据库系统工程师ct
FETCH NEXT FROM curObject INTO @Name, @Owner
WHILE(@@FETCH_STATUS=0)
BEGIN  日志怎么写;
if @Owner=@OldOwner
begin
set @Owne经典电影rName = @OldOwner + '.' + rtrim(@N经典生日祝福语大全ame)
sp_changeobjectowner @OwnerName, @NewOwner
end
-- @name,@NewOwner,@OldOw语句是什么意思ner
FETCH NEXT FRO经典M curObjec技巧t INTO @Name, @Own日志er
END
close cur技巧是什么意思Obj语句覆盖ect
dea数据库管理系统llocate curObject
GO
10、SQL SERVER中直接循环写入数据
@i日志文件可以删除吗 int
set @i=1
while @i
&nbs技巧敏捷p; Name 经典电影&n技巧性转场bsp; score
经典语录太经典了霸气 Zhangshan 8语句优美的句子0
&语句结构nbsp; Lishi &n语句表bsp; 59
Wangwu 50
Songquan 日志 69经典老歌
while((select min语句摘抄(score) from tb_table)
begi数据库n
tb_table set score日志英文 经典;=score1.01
where score
if (select min(score) from数据库系统的核心是 tb_table)>60
break
else
&nbs技巧的拼音p; continue
end
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