SQL Server

Create DatabaseServicedb on Primary(Name='Servicedb_data',--logical name of the master data fileFileName='D:\WebRoot\DB\ServiceDB_data.mdf',--physical name of the master data fileSize=5MB,--Initial size of master data fileMaxSize=100MB,--maximum

DBCC ShrinkdatabaseFunction: Compress databaseUsage:DBCC shrinkdatabase tb_115sou_comNote: Only operations that produce many unused space, such as truncating tables or deleting table operations, perform a shrink operation that is most effective and

Run the following script to build the test database and table.--Create databasecreate database bulktestdb;gouse bulktestdb;go--int primary KEY, UserName nvarchar (+), Pwd varchar (+)) Go--int, UserName nvarchar (+), Pwd varchar (+))View CodeUse the

Linked servers are useful in cross-database/cross-server queries (such as in a distributed database system), and this article will detail graphically how to use SQL Server Management Studio to create a linked server under the graphical interface. 1

ADO connect the SQL server//header file with the following sentence, #import "C:\Windows\system\msado15.dll" no_namespace rename ("EOF", "rseof")//cpp inside CoInitialize (NULL), _connectionptr pconn (__uuidof (Connection)); _RecordsetPtr pRst

The following example uses Transact-SQL and demonstrates how to create a table-valued parameter type, declare a variable to reference it, populate the parameter list, and then pass the value to the stored procedure.1 UseAdventureWorks;2 GO3 4

/*************** Creating a test table *********************[Email protected] ***************/IF not object_id (' [Demo_top] ') is NULLDROP TABLE [Demo_top]GOCreate table [Demo_top](PID int identity (primary) key NOT NULL, PName nvarchar (+) null,

1. When the field does not have a default value or constraint, it can be used:ALTER TABLE [TABLE_NAME] drop column [column_name] to delete.When you have a default value, you should first delete the default value and then delete the column, or you

Original: Perform DBCC operations on very large SQL Server databases For database maintenance, mainly using DBCC CHECKDB, the following is the use of large databases, small databases are generally used directly: 1, 2008 (2005 I do not confirm) has

SQL Server blocks the solution to the component xp_cmdshell processError description: SQL Server blocked access to the process ' Sys.xp_cmdshell ' for component ' xp_cmdshell '. Because this component has been shut down as part of this service's

Select Top 25P.name as [SP name],Deps.total_logical_reads as [Totallogicalreads],Deps.total_logical_reads/deps.execution_count as [Avglogicalreads],Deps.execution_count,ISNULL (Deps.execution_count/datediff (Second,deps.cached_time,getdate ()), 0)

1 --the following SQL code is executed in the job to enable automatic shrinking of the log files. (The ability to automatically shrink log files is not available in the MSSQL maintenance plan)2 --non-mirrored replication subscriptions are executed

1, exists and in1.1 Under normal conditions the effect of exists and in is the same, the testIt doesn't matter if the subquery contains null, it still works1.2 In and exists efficiency comparisonFirst Look inBy the figure can be 1 million of the

Our system maintenance process will certainly need to make regular backups of the database, but if the scheduled manual backup, not only a waste of time, but also can not guarantee that every time the backup, so automatic backup becomes our choice,

SQL Database engine:tcp 1433 & UDP 1434 SQL Analysis Service:tcp 2383 (2382 if named instance) Windows Firewall with Advanced Security On Windows 7 or Windows Vista, the Control Panel, click System and Security, select Windows Firewall, and

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The first step:Build tableCREATE table t1 (x int, y int);CREATE table t2 (x int, y int);GoINSERT into T1 (x, Y) VALUES (2,3), (3,4), (4,5), (5,6);INSERT into T2 (x, Y) values (2,3);GoStep Two:Delete Related rows in the T1 tableDelete aFrom T1 as a

Operations in the same logical phase of SQL occur at the same time.First there is an example for bringing in:DECLARE @x as int = 1;DECLARE @y as int = 2;Set @[email protected];Set @[email protected];Select @x,@y;Go--the result of the last select is

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Transferred from: http://unity.jb51.net/chengxukaifa/shujukubiancheng/1078.htmlRecently some friends asked me to u3d the PC-side connection database problem. Now take a moment to write a connection database and print out a case of data in the data