search
HomeDatabaseMysql Tutorial收缩当前SQL Server实例中所有的数据库

收缩当前SQLServer实例中所有的数据库 无 DECLARE @sql nvarchar(300)?DECLARE ShrinkAllDBs CURSORREAD_ONLYFOR select name from sysdatabases?DECLARE @name nvarchar(255)OPEN ShrinkAllDBs?FETCH NEXT FROM ShrinkAllDBs INTO @nameWHILE (@@fetch_statu

收缩当前SQL Server实例中所有的数据库
DECLARE @sql nvarchar(300)
?
DECLARE ShrinkAllDBs CURSOR
READ_ONLY
FOR select name from sysdatabases
?
DECLARE @name nvarchar(255)
OPEN ShrinkAllDBs
?
FETCH NEXT FROM ShrinkAllDBs INTO @name
WHILE (@@fetch_status <> -1)
BEGIN
	IF (@@fetch_status <> -2)
	BEGIN
		SET @sql = N'DBCC SHRINKDATABASE(N''' + @name + N''')'
		EXEC sp_executesql @sql
	END
	FETCH NEXT FROM ShrinkAllDBs INTO @name
END
?
CLOSE ShrinkAllDBs
DEALLOCATE ShrinkAllDBs
GO
Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
MySQL BLOB : are there any limits?MySQL BLOB : are there any limits?May 08, 2025 am 12:22 AM

MySQLBLOBshavelimits:TINYBLOB(255bytes),BLOB(65,535bytes),MEDIUMBLOB(16,777,215bytes),andLONGBLOB(4,294,967,295bytes).TouseBLOBseffectively:1)ConsiderperformanceimpactsandstorelargeBLOBsexternally;2)Managebackupsandreplicationcarefully;3)Usepathsinst

MySQL : What are the best tools to automate users creation?MySQL : What are the best tools to automate users creation?May 08, 2025 am 12:22 AM

The best tools and technologies for automating the creation of users in MySQL include: 1. MySQLWorkbench, suitable for small to medium-sized environments, easy to use but high resource consumption; 2. Ansible, suitable for multi-server environments, simple but steep learning curve; 3. Custom Python scripts, flexible but need to ensure script security; 4. Puppet and Chef, suitable for large-scale environments, complex but scalable. Scale, learning curve and integration needs should be considered when choosing.

MySQL: Can I search inside a blob?MySQL: Can I search inside a blob?May 08, 2025 am 12:20 AM

Yes,youcansearchinsideaBLOBinMySQLusingspecifictechniques.1)ConverttheBLOBtoaUTF-8stringwithCONVERTfunctionandsearchusingLIKE.2)ForcompressedBLOBs,useUNCOMPRESSbeforeconversion.3)Considerperformanceimpactsanddataencoding.4)Forcomplexdata,externalproc

MySQL String Data Types: A Comprehensive GuideMySQL String Data Types: A Comprehensive GuideMay 08, 2025 am 12:14 AM

MySQLoffersvariousstringdatatypes:1)CHARforfixed-lengthstrings,idealforconsistentlengthdatalikecountrycodes;2)VARCHARforvariable-lengthstrings,suitableforfieldslikenames;3)TEXTtypesforlargertext,goodforblogpostsbutcanimpactperformance;4)BINARYandVARB

Mastering MySQL BLOBs: A Step-by-Step TutorialMastering MySQL BLOBs: A Step-by-Step TutorialMay 08, 2025 am 12:01 AM

TomasterMySQLBLOBs,followthesesteps:1)ChoosetheappropriateBLOBtype(TINYBLOB,BLOB,MEDIUMBLOB,LONGBLOB)basedondatasize.2)InsertdatausingLOAD_FILEforefficiency.3)Storefilereferencesinsteadoffilestoimproveperformance.4)UseDUMPFILEtoretrieveandsaveBLOBsco

BLOB Data Type in MySQL: A Detailed Overview for DevelopersBLOB Data Type in MySQL: A Detailed Overview for DevelopersMay 07, 2025 pm 05:41 PM

BlobdatatypesinmysqlareusedforvoringLargebinarydatalikeImagesoraudio.1) Useblobtypes (tinyblobtolongblob) Basedondatasizeneeds. 2) Storeblobsin Perplate Petooptimize Performance.3) ConsidersxterNal Storage Forel Blob Romana DatabasesizerIndimprovebackupupe

How to Add Users to MySQL from the Command LineHow to Add Users to MySQL from the Command LineMay 07, 2025 pm 05:01 PM

ToadduserstoMySQLfromthecommandline,loginasroot,thenuseCREATEUSER'username'@'host'IDENTIFIEDBY'password';tocreateanewuser.GrantpermissionswithGRANTALLPRIVILEGESONdatabase.*TO'username'@'host';anduseFLUSHPRIVILEGES;toapplychanges.Alwaysusestrongpasswo

What Are the Different String Data Types in MySQL? A Detailed OverviewWhat Are the Different String Data Types in MySQL? A Detailed OverviewMay 07, 2025 pm 03:33 PM

MySQLofferseightstringdatatypes:CHAR,VARCHAR,BINARY,VARBINARY,BLOB,TEXT,ENUM,andSET.1)CHARisfixed-length,idealforconsistentdatalikecountrycodes.2)VARCHARisvariable-length,efficientforvaryingdatalikenames.3)BINARYandVARBINARYstorebinarydata,similartoC

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

EditPlus Chinese cracked version

EditPlus Chinese cracked version

Small size, syntax highlighting, does not support code prompt function