Some general guidelines for page compression are: 

Query operations such as filtering, joins, aggregates, and sorting see decompressed data, and hence the cost of these operations arenot affected by data compression.

A query, whose cost is dominated by complex processing operations is muchless likely to see any significant change in performance or CPU utilization, due to data compression.

If CPU time for an application consists primarily of complex queries, page compression maynot impact CPU measurably. In such scenarios, space savings may be the prime driver for data compression.

--------------------------------

In my understanding, page compression consumes much CPU than row compresssion, so the cost of query operations such as filtering, joins, aggregates should be affected bypage compression. But the white papers says not. Why?

Hi, everyone...

A error on me has been occured during SQL Server 2008R2's Management established a login connection to daabase instance.

The message in daialog as follows, when login criteria is that

login criteria....

Servr type:Database Engin

Server name:(loval)

Authentication:Windows Authentication

Message....

"Cannot connect to (local)

Additiona information:

A network-related or instance-specific error occured while establishing a connection to SQL Server. The server was not found or was not accessible. ..... provider:Named Pipes Provider,error:40- ..... Microsoft SQL Server, Error:2"

How to solve this error and what caused it on me?

SQL server running environment ....

Windows Server 2008 r2 std with SP1 under VMwear.

Thank you for cooperation.

I am a complete novice and need step by step guidance, if possible.

Time Matters told me I need to call Microsoft to have you reset the SA password and mixed mode.txt so that I can access and operate my time Matters program. They told me that M/S (or SQL) provides the "spine" on which a number of programs operate.

When I try to sign onto Time Matters 12, I get the following message ""Incorrect SQL Server Settings" Description : Could not connect to the SQL database. ......

8001 - SQL Server does not exist or access denied. Recommended Action . review Support Center article 1D11148 for instructions to diagnose and resolve problem.""

Contained Databases in SQL Server 2012.

Hi, everyone.

An error message as follow has come to me when I logged in SQL server via web server.

The message;

Server: Msg 18456, Level 14, State 1, Line 1
Login failed for user 'os login account'.

I dose not understannd what has happed to me. Anyone let me know how to solved this issue or how to survey what caused the issue.

Best regard.

Event Type: Error
Event Source: DatabaseMail
Event Category: None
Event ID: 0
Date:  29-11-2013
Time:  14:08:30
User:  N/A
Computer: W6000
Description:

1) Exception Information
===================
Exception Type: Microsoft.SqlServer.Management.SqlIMail.Server.Common.BaseException
Message: There was an error on the connection. Reason: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified), connection parameters: Server Name: W6000\W6001_01, Database Name: msdb
Data: System.Collections.ListDictionaryInternal
TargetSite: Void OpenConnection(Microsoft.SqlServer.Management.Common.SqlConnectionInfo)
HelpLink: NULL
Source: DatabaseMailEngine

StackTrace Information
===================
   at Microsoft.SqlServer.Management.SqlIMail.Server.DataAccess.ConnectionManager.OpenConnection(SqlConnectionInfo ci)
   at Microsoft.SqlServer.Management.SqlIMail.Server.DataAccess.DataAccessAdapter.OpenConnection(String dbServerName, String dbName, String userName, String password)
   at Microsoft.SqlServer.Management.SqlIMail.IMailProcess.QueueItemProcesser.ProcessQueueItems(String dbName, String dbServerName, Int32 lifetimeMinimumSec, LogLevel loggingLevel)

2) Exception Information
===================
Exception Type: System.Data.SqlClient.SqlException
Errors: System.Data.SqlClient.SqlErrorCollection
Class: 20
LineNumber: 0
Number: -1
Procedure: NULL
Server:
State: 0
Source: .Net SqlClient Data Provider
ErrorCode: -2146232060
Message: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
Data: System.Collections.ListDictionaryInternal
TargetSite: System.Data.ProviderBase.DbConnectionInternal GetConnection(System.Data.Common.DbConnection)
HelpLink: NULL

StackTrace Information
===================
   at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)
   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
   at System.Data.SqlClient.SqlConnection.Open()
   at Microsoft.SqlServer.Management.SqlIMail.Server.DataAccess.ConnectionManager.OpenConnection(SqlConnectionInfo ci)

For more information, see Help and Support Center at

Dear All,

I wanted to create some databases but I wanted to know how to determine how much file frowth to specify in MB please?

Thank you in advance.

Hi All,

i have a question about connecting SQL Server Management Studio (MS SQL Server 2008) to a localy stored file. My goal is to connect installed M Studio to a .bak file - all done on the same pc. Can someone advise how to install an engine to cooperate with management studio ?

Thanks

Hi,

i got the following error while i configure snapshot replication.error occured when data getting replicated from publication to subscriber database.

Error: the agent could not be started

i was unable to find out where the error has been occured?But i configure publication successfully(default instance)  and i want to subscribe the publication database to second and third instances(those are subscribers). During this situation i didn't able to subscribe that publication database from default instance.

Hi,

how to find blocking by using DMV's?

I've been playing around with the scripts bellow trying to better understand the snapshot isolation internals, but the behaviour is some times unexpected. I was expecting that every time I would run the select script bellow, something would show up on the dm_tran_version_store. But sometimes it comes up with no rows. I couldn't yet get a reason for that, and I have played with restarting the instance, changing the initial size of the data, changing the size of the updated data, etc.

The query I'm using to look at the version store is the one bellow, and some times it shows some rows, but some other times it comes empy

SELECT * FROM sys.dm_tran_version_store WHERE database_id=db_id('RowVerTest')

can anyone point me to something that I must be missing...?

regards,

/////////////////// CREATE DATABASE SCRIPT

USE [master]

SET NOCOUNT ON 
SELECT GETDATE()

IF db_id('RowVerTest') IS NOT NULL
BEGIN
ALTER DATABASE [RowVerTest] set offline WITH ROLLBACK IMMEDIATE
ALTER DATABASE [RowVerTest] set online
    DROP DATABASE [RowVerTest] 
END
GO

CREATE DATABASE [RowVerTest]
 ON  PRIMARY 
( NAME = N'RowVerTest', FILENAME = N'D:\DADOS\RowVerTest.mdf')
 LOG ON 
( NAME = N'RowVerTest_log', FILENAME = N'E:\LOGS\RowVerTest_log.ldf')
GO

--ALTER DATABASE [RowVerTest] SET ALLOW_SNAPSHOT_ISOLATION ON
--GO

USE [RowVerTest]
GO

CREATE TABLE test
(
c1 INT PRIMARY KEY,
c2 VARCHAR(8000)
)
GO

DECLARE @i INT
SET @i=1

WHILE @i<=8
BEGIN
INSERT INTO test VALUES (@i,REPLICATE(@i,900))
--INSERT INTO test VALUES (@i,REPLICATE(@i,10))
SET @i=@i+1
END
GO

ALTER DATABASE [RowVerTest] SET ALLOW_SNAPSHOT_ISOLATION ON
GO

SELECT GETDATE()
GO

/////////////////// SELECT SCRIPT

USE [RowVerTest]
SET TRANSACTION ISOLATION LEVEL SNAPSHOT
SET NOCOUNT ON 

SELECT GETDATE()
GO

BEGIN TRAN

--UPDATE test SET c2='XXXX'

--UPDATE test SET c2='XXXX' WHERE c1=1
UPDATE test SET c2=GETDATE() WHERE c1=1


WAITFOR DELAY '00:02:00'

COMMIT
SELECT GETDATE()
GO

We have received the following error. Most noted is the 'Out Of Memory'and Caught exception while collecting cpu properties. The complete error is this.  However a team member found a bug in theWmiPrvSE.exe which gets hung.  There are two corrections.  1. Kill the WMIPrvSe.exe process on the server itself.  2. Restart the server, or failover if it is a cluster, then reboot the inactive node.

 ...xception            : System.Management.ManagementException: Out of memory                             at System.Management.ManagementException.ThrowWithExt                         endedInfo(ManagementStatus errorCode)                            at System.Management.ManagementObjectCollection.Manag                         ementObjectEnumerator.MoveNext()                             at Microsoft.PowerShell.Commands.GetWmiObjectCommand.                         BeginProcessing()  TargetObject         :   CategoryInfo         : InvalidOperation: (:) [Get-WmiObject], ManagementExcepti                         on  FullyQualifiedErrorId : GetWMIManagementException,Microsoft.PowerShell.Commands.                         GetWmiObjectCommand  ErrorDetails         :   InvocationInfo       : System.Management.Automation.InvocationInfo  PipelineIterationInfo : {0, 0}         WARNING : 11/29/2013 9:02:01 PM :    MyCommand        : Get-WmiObject BoundParameters  : {[Class, Win32_Processor]} UnboundArguments : {}  ScriptLineNumber : 731 OffsetInLine     : 21  HistoryId        : -1 ScriptName       :  Line             :      (Get-WmiObject Win32_Processor) |   PositionMessage :                     At line:731 char:21                    +       (Get-WmiObject <<<< Win32_Processor) |   InvocationName  : Get-WmiObject  PipelineLength   : 1  Pipelinenbsp; ExpectingInput   : False  CommandOrigin    : Internal         WARNING : 11/29/2013 9:02:01 PM : 00000000000000000000000000000000000000000000000000000000000000000000000000000000 WARNING : 11/29/2013 9:02:01 PM :     ErrorInformation : System.Management.ManagementBaseObject ErrorCode        : OutOfMemory Message          : Out of memory   Data            : {}  InnerException   :  TargetSite       : Void ThrowWithExtendedInfo(System.Management.ManagementStatus                    )  StackTrace       :    at System.Management.ManagementException.ThrowWithExtended                    Info(ManagementStatus errorCode)                       at System.Management.ManagementObjectCollection.Management                    ObjectEnumerator.MoveNext()                       at Microsoft.PowerShell.Commands.GetWmiObjectCommand.Begin                    Processing()  HelpLink        :   Source          : System.Management         ERROR : 11/29/2013 9:02:01 PM : Caught exception while collecting cpu properties. A WMI query might have failed.  WARNING : 11/29/2013 9:02:01 PM : Error occurred during execution of script. WARNING : 11/29/2013 9:02:01 PM : Transaction will be rolled back. WARNING : 11/29/2013 9:02:01 PM :     PSMessageDetails     :   Exception            : Microsoft.PowerShell.Commands.WriteErrorException: 11/29                         /2013 9:02:01 PM : Caught exception while collecting cpu                          properties.  A WMI query might have failed.  TargetObject          :  CategoryInfo          : NotSpecified: (:) [Write-Error], WriteErrorException FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,Write-                         ScriptError  ErrorDetails         :   InvocationInfo       : System.Management.Automation.InvocationInfo  PipelineIterationInfo : {0, 0}         WARNING : 11/29/2013 9:02:01 PM :     MyCommand       : Write-ScriptError  BoundParameters  : {[object, Caught exception while collecting cpu properties.                      A WMI query might have failed.]}  UnboundArguments : {} ScriptLineNumber : 752  OffsetInLine    : 24  HistoryId       : -1  ScriptName      :   Line            :       Write-ScriptError "Caught exception while collecting cp                    u properties.  A WMI query might have failed." PositionMessage  :                     At line:752 char:24                    +       Write-ScriptError <<<< "Caught exception while colle                   cting cpu properties.  A WM...  Process Exit Code -1. The step failed.

Akinja

Hi Sql Techies,

As Per Technet,

Start_Execution_Date: Date and time job has been scheduled to run.

Run_Requested_Date: Date and time that the job was requested to run

Stop_Execution_Date: Date and time that the job finished running.

Q1: What is the meaning of "NULL" Value in stop_execution_date column result 

Q2: "run_requested_date" vs  "start_execution_date" ( i.e   "job was requested to run" vs  "job has been scheduled to run.")

 Both values will be same or different

Hi Sql Techies,

Please Check and Correct My Quires:

1) Find Out What are Jobs Running Now

SELECT A.Name, A.job_ID, A.Originating_Server,

B.run_requested_Date,B.start_execution_date,B.stop_execution_date,b.next_scheduled_run_date,DATEDIFF(MINUTE, B.run_requested_Date,GETDATE()) AS JobRunning@InMins

FROM msdb.dbo.sysjobs_view A

innerjoin msdb.dbo.sysjobactivity B

ON (A.job_id= B.job_id)

WHERE run_Requested_dateisnot nullandstop_execution_dateisnull

2) Find out from how long a Specific Job is running:

SELECTDATEDIFF(Minute,A.start_execution_date,GetDate())ASJobRunning@InMins

FROMmsdb..sysjobactivityA

JOINmsdb..sysjobsBon B.job_id =A.job_id

WHEREA.stop_execution_dateISNULL

ANDA.start_execution_dateISNOT NULL

ANDB.name='Specify Your Job Name'

ANDNOTEXISTS( SELECT 1

    FROMmsdb..sysjobactivityC

    WHEREC.job_id=A.job_id

    andC.start_execution_date>A.start_execution_date

)

3) How to Join Results of Two Stored Procedures 

Hi

When i right click on my TempDB in Sql2008R2 i get this message:

TITLE: Microsoft SQL Server Management Studio
------------------------------

Cannot show requested dialog.

------------------------------
ADDITIONAL INFORMATION:

Cannot show requested dialog. (SqlMgmt)

------------------------------

Property Size is not available for Database '[tempdb]'. This property may not exist for this object, or may not be retrievable due to insufficient access rights.  (Microsoft.SqlServer.Smo)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=10.50.1753.0+((KJ_RTM_QFE-CU).101210-2156+)&EvtSrc=Microsoft.SqlServer.Management.Smo.ExceptionTemplates.PropertyCannotBeRetrievedExceptionText&EvtID=Size&LinkId=20476

The link dosen't show anything. You are not allow running the EXEC sp_changedbowner ‘sa’ because it is on the TEMPDB.
I'm i going to restore tempdb? It works fine on all other databases incl. Master

An unhandled exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll.

I use the connection string showed in the database's Properties.

conn.ConnectionString = "Data Source=(localdb)\v11.0;Initial Catalog=tempdb;Integrated Security=True;Connect Timeout=15;Encrypt=False;TrustServerCertificate=False";
conn.Open();

System.Data.SqlClient.SqlException was unhandled
  HResult=-2146232060
  Message=在与 SQL Server 建立连接时出现与网络相关的或特定于实例的错误。未找到或无法访问服务器。请验证实例名称是否正确并且 SQL Server 已配置为允许远程连接。 (provider: Named Pipes Provider, error: 40 - 无法打开到 SQL Server 的连接)
  Source=.Net SqlClient Data Provider
  ErrorCode=-2146232060
  Class=20
  LineNumber=0
  Number=53
  Server=""
  State=0
  StackTrace:在 System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
       在 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
       在 System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, Boolean withFailover)
       在 System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, Boolean withFailover)
       在 System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString connectionOptions, SqlCredential credential, TimeoutTimer timeout)
       在 System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(TimeoutTimer timeout, SqlConnectionString connectionOptions, SqlCredential credential, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance)
       在 System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData)
       在 System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
       在 System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions)
       在 System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
       在 System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
       在 System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)在 System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)在 System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)在 System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
       在 System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
       在 System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)
       在 System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
       在 System.Data.SqlClient.SqlConnection.Open()
       在 QrCodeBike.LinkDB.button1_Click(Object sender, EventArgs e) 位置 e:\DOCUMENT\Course\数据库工程\QrCodeBike\QrCodeBike\LinkDB.cs:行号 27
       在 System.Windows.Forms.Control.OnClick(EventArgs e)
       在 System.Windows.Forms.Button.OnClick(EventArgs e)
       在 System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
       在 System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)在 System.Windows.Forms.Control.WndProc(Message& m)在 System.Windows.Forms.ButtonBase.WndProc(Message& m)在 System.Windows.Forms.Button.WndProc(Message& m)在 System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)在 System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)在 System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
       在 System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)在 System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
       在 System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       在 System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       在 System.Windows.Forms.Application.Run(Form mainForm)
       在 QrCodeBike.Program.Main() 位置 e:\DOCUMENT\Course\数据库工程\QrCodeBike\QrCodeBike\Program.cs:行号 22
       在 System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       在 System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       在 Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       在 System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       在 System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       在 System.Threading.ThreadHelper.ThreadStart()
  InnerException: System.ComponentModel.Win32Exception
       HResult=-2147467259
       Message=找不到网络路径。
       ErrorCode=-2147467259
       NativeErrorCode=53
       InnerException: 

Hi experts

  SQL Server is very slow,after i checked in Perfmon,Counter Average disk queue length is always high,what shall i do next.please guide me.

please guide me to overcome this one.

Thanks - SelvaKumarSubramaniam.Please MARK AS ANSWER, if my answer is useful to U.

Regards Vikas Pathak

Following is table

1Activity diagram doc 1.txt	 Activities Actions Final 
2Activity Diagrams doc 2.txt	 Activities Actions Objects 
3Activity Diagrams doc 3.txt	 Accepting a Time Event 

the query should be match 3 column data such as if user suppose enter the word activities then activity containing there are 2 column.

but the problem is see the third column containing the at least two or more word. 

the query should be search only those word enter by the user.

plz reply