SQL Server

SQL Server provides a database command--DBCC showcontig--to determine whether a specified table or index is fragmented.   Example: Displaying fragmentation information for all indexes in a database DBCC SHOWCONTIG with all_indexes  displays

Original: SQL Server system Database recoveryTags: SQL server/mssql server/database/dba/failback/masterOverviewSQL Server maintains a set of system-level databases, called system databases, that are critical to the operation of the server instance.

Original address: http://www.cnblogs.com/colder/p/3796864.htmlSQL Server 2005 and later versions are supported in the CLR language (C #. NET, VB. NET) to write processes, triggers and functions, so that regular matching, data extraction can be used

/*Recursive query for Paint poly---implementation in a SQL Server 2005 environment:*/--Generate test dataCREATE TABLE Dept (ID int,parentid int,msg varchar (20))Insert INTO Dept select 1,0, ' d 'Insert INTO Dept Select 2,1, ' s 'Insert INTO Dept

Original: SQL Server data type priority impact on performanceTranslated from:Http://www.mssqltips.com/sqlservertip/2749/sql-server-data-type-precedence/?utm_source=dailynewsletter&utm _medium=email&utm_content=headline&utm_campaign=2012814Problem:I

1. Overlay index: The "Nonclustered index column" should exist in the result set contained in select and where, so that the index table can be done without looking up the base table; 2. Index Cross: is for an extension of the overlay index (here the

INSERT [TOP () [PERCENT] [into] [(column list)][OUTPUT ]{VALUES () [, ()] [,... N]| | EXEC | DEFAULT VALUESThis structure looks like a crash, more basic as follows:INSERT [into] [(column list)]VALUES () [, ()] [,...-N]MultiRow Insert, as long as the

Primary key table:CREATE TABLE [dbo]. [KeyCode] ([KeyName] [varchar] () not NULL,[Keytablename] [varchar] (+) NULL,[Keyfieldname] [varchar] (+) NULL,[StrLen] [INT] Null[Codelen] [INT] Null[Codemin] [Float] Null[Codemax] [Float] Null[CodeType]

A clear introduction to SQL cursors, a good learning material. Turn fromHttp://www.cnblogs.com/knowledgesea/p/3699851.htmlWhat is a cursor result set, which is the collection of all row data returned after the select query. Cursors are a mechanism

Original: SQL Server: Understanding BCM PagesLet's talk about it today.Bulk Change Mapping (Bulk Changed Map:Bcm) page, and how the bulk-logged Recovery model ( bulk logged recovery model ) works. bulk change mapping (Bulk Changed map:bcm): SQL

1 --View current storage location2 SelectDatabase_id,name,physical_name ascurrentlocation,state_desc,size3 fromsys.master_files4 wheredatabase_id=db_id(N'Database name');5 6 --Change the location of the file to take effect the next time7 --TestDB

Originally found using the clustered index primary key, confirming that it is not a primary key problem, is a clustered index problem.Version:microsoft SQL Server R2 (SP1)--Create a test table--drop table [testtable]create table [dbo]. [TestTable] ([

Related to the problem of index fragmentation, we should have heard a lot, perhaps also a lot of friends have done with the relevant work. Let's take a look at the problem today.In order to better illustrate this problem, we first to popularize some

About the management of database files, I often say, often mixed in the lake, which has not been the stick, with a long time, basically have encountered some database file management problems, such as:1. SQL Server data file space full2. log Files

Original address:Stairway to SQL Server indexes:level 10,index Internal StructureThis article is part of the SQL Server cable Introduction order series (Stairway to SQL Server Indexes).In the previous level, we introduced the index from a logical

Reference:Http://www.shangxueba.com/jingyan/105946.htmlFirst, do not SqlServerCmdletSnapin100 this snapin to write a few operations common data script1. As a reader asks how to display a table in a database with PowerShell, here is a simple function

Because the early adopters installed the WINDOWS8, it is really good, the only regret is that SQL Server 2005 installation is not supported. Find a lot of ways, basically have flaws. Now finally find a completely normal no defects, and share with

Take SQL Server R2 as an example for analysis: SQL Server Connection Port number analysis SQL Server Browser Start Stop it Static port 1433 ①√ ④√orx Xxxxx ②√

"Problem description" If you connect to the local database server, the server name can be filled in: 127.0.0.1 or localhost or native machine full name (such as home), sometimes with a native machine name can log on to SQL Server 2005, but cannot

Method One:Use database nameSelect Name,size from Sys.database_filesALTER database name SET RECOVERY simple with no_waitALTER database name SET RECOVERY simpleUse database nameDBCC shrinkfile (N ' log filename ', 0,truncateonly)ALTER database name