Error: A Deadlock Was Detected While Trying To Lock Variable X For Read Access. A Lock Could Not Be Acquired After 16 Attempts

Feb 2, 2007

I simply made my script task (or any other task) fail

In my package error handler i have a Exec SQL task - for Stored Proc

SP statement is set in following expression (works fine in design time):

"EXEC [dbo].[us_sp_Insert_STG_FEED_EVENT_LOG] @FEED_ID= " + (DT_WSTR,10) @[User::FEED_ID] + ", @FEED_EVENT_LOG_TYPE_ID = 3, @STARTED_ON = '"+(DT_WSTR,30)@[System::StartTime] +"', @ENDED_ON = NULL, @message = 'Package failed. ErrorCode: "+(DT_WSTR,10)@[System::ErrorCode]+" ErrorMsg: "+@[System::ErrorDescription]+"', @FILES_PROCESSED = '" + @[User::t_ProcessedFiles] + "', @PKG_EXECUTION_ID = '" + @[System::ExecutionInstanceGUID] + "'"

From progress:

Error: The Script returned a failure result.
Task SCR REIL Data failed

OnError - Task SQL Insert Error Msg
Error: A deadlock was detected while trying to lock variable "System::ErrorCode, System::ErrorDescription, System::ExecutionInstanceGUID, System::StartTime, User::FEED_ID, User::t_ProcessedFiles" for read access. A lock could not be acquired after 16 attempts and timed out.
Error: The expression ""EXEC [dbo].[us_sp_Insert_STG_FEED_EVENT_LOG] @FEED_ID= " + (DT_WSTR,10) @[User::FEED_ID] + ", @FEED_EVENT_LOG_TYPE_ID = 3, @STARTED_ON = '"+(DT_WSTR,30)@[System::StartTime] +"', @ENDED_ON = NULL, @message = 'Package failed. ErrorCode: "+(DT_WSTR,10)@[System::ErrorCode]+" ErrorMsg: "+@[System::ErrorDescription]+"', @FILES_PROCESSED = '" + @[User::t_ProcessedFiles] + "', @PKG_EXECUTION_ID = '" + @[System::ExecutionInstanceGUID] + "'"" on property "SqlStatementSource" cannot be evaluated. Modify the expression to be valid.

Warning: The Execution method succeeded, but the number of errors raised (4) reached the maximum allowed (1); resulting in failure. This occurs when the number of errors reaches the number specified in MaximumErrorCount. Change the MaximumErrorCount or fix the errors.

And how did I get 4 errors? - I only set my script task result to failure

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A Lock Could Not Be Acquired After 16 Attempts And Timed Out

Jan 2, 2006

Hi!

I'm trying to handle errors in SSIS package. I created Scrip task where I do following:

-----------

If CInt(Dts.Variables("BADROWSFILE").Value) <> 0 Then

  Dts.Variables("ERROR_MSG").Value = "Errors in input file. Error count: " + CStr(Dts.Variables("BADROWSFILE").Value) + ". See log table and file for more info."

  Dts.TaskResult = Dts.Results.Failure

Else

  Dts.TaskResult = Dts.Results.Success

End If

---------

Then in package level OnError I added Execute SQL Script task where I pass ERROR_MSG as Input Parameter.

The flow gets to the SQl task and this is what I'm getting:

Error: 0xC001405B at Log error: A deadlock was detected while trying to lock variable "User::ERROR_MSG" for read access. A lock could not be acquired after 16 attempts and timed out.

Error: 0xC00291EA at Log error, SQL Task: Variable "User::ERROR_MSG" does not exist.

The variable does exist though...

Any idea?

Dima.

 

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A Deadlock Was Detected While Trying To Lock Variables

Mar 20, 2008



Hi Friends,

I have a problem to read varibale inside script.
the error discription is following-

Error: A deadlock was detected while trying to lock variables "User::FilePath" for read/write access. A lock cannot be acquired after 16 attempts. The locks timed out.



this is my code. i my code i am using two variables, but i can access only one .
i have to retrive file directory and file path is generated by other system.


Public Sub Main()

'

' Add your code here

'

Dim vars As Variables



If Not vars Is Nothing Then

vars.Unlock()

End If

Dim lFileName As String = String.Empty

Dim lFilePath As String = String.Empty

Dts.VariableDispenser.LockOneForWrite("FilePath", vars)

Dts.VariableDispenser.LockOneForRead("FileName", vars)

Dts.VariableDispenser.GetVariables(vars)

lFileName = vars.Item("FileName").Value.ToString

lFilePath = GetDirectoryName(lFileName)

If Not lFilePath.EndsWith("") Then

lFilePath = String.Format("{0}", lFilePath)

End If

vars("UnzippedKeyStatFilePath").Value = lFilePath

vars.Unlock()

Dts.TaskResult = Dts.Results.Success



End Sub

Thanks
Manish Jain

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ERROR: A Variable May Only Be Added Once To Either The Read Lock List Or The Write Lock List.

May 22, 2006

Hi,
I have set of 2 DTS packages, one of which calls the other by forming a command-line (dtexec) using a Execute Process task.

From the parent package-> Execute Process Task->
dtsexec /F etc... /<pkg variable> = "servername"

Each of the parent and the called package have a variable: "User::DWServerSQLInstance" which is mapped to the SQL server connection manager server name property using an expression. The outer package has the above variable and so does the inner called package (which gets assigned through the command line from the outerpackage call to inner)

I "sometimes" get the following error:

OnError,I4,TESTDOMAdministrator,ACDWAggregation,{A1F8E43F-15F1-4685-8C18-6866AB31E62B},{77B2F3C7-6756-46EB-8C01-D880598FB4B3},5/22/2006 5:10:28 PM,5/22/2006 5:10:28 PM,-1073659822,0x,The variable "User::DWServerSQLInstance" is already on the read list. A variable may only be added once to either the read lock list or the write lock list.

Help would be appreciated!

I have seen other posts on this but, not able to relate the solution to my scenario.

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A Variable May Only Be Added Once To Either The Read Lock List Or The Write Lock List

May 10, 2006

Hi All,



I have seen a few other people have this error.

Package works fine when run from BIDS, DTExec, dtexecui. When I schedule it, It get these random errors. (See below)

The main culprit is a variable called "RecordsetFileDIR" which is set using an expression. (@[User::_ROOT] + "RecordSets\")

A number of other variables use this as part of their expression and as they all fail, pretty much everything dies.

I have installed SP1 (Not Beta) on server. Package uses config files to set the value of _ROOT.



The error does not always seem to be with this particular variable though. Always a variable that uses an expression but errors are random. Also, It will run 3 out of 10 times without a problem. I am the only person on the server at the time.

Any ideas?



Cheers,

Crispin



Error log:

OnError,,,POSBasketImport,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1073659822,0x,The variable "User::RecordsetFileDIR" is already on the read list. A variable may only be added once to either the read lock list or the write lock list.

OnError,,,POSBasketImport,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1073639420,0x,The expression for variable "rsHeaderFile" failed evaluation. There was an error in the expression.

OnError,,,DF_Header_Header,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1071636247,0x,Accessing variable "User::rsHeaderFile" failed with error code 0xC00470EA.

OnError,,,Move All Data,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1071636247,0x,Accessing variable "User::rsHeaderFile" failed with error code 0xC00470EA.

OnError,,,Load Open Batches and Process Files,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1071636247,0x,Accessing variable "User::rsHeaderFile" failed with error code 0xC00470EA.

OnError,,,POSBasketImport,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1071636247,0x,Accessing variable "User::rsHeaderFile" failed with error code 0xC00470EA.

OnError,,,DF_Header_Header,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1071636390,0x,The file name is not properly specified. Supply the path and name to the raw file either directly in the FileName property or by specifying a variable in the FileNameVariable property.

OnError,,,Move All Data,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1071636390,0x,The file name is not properly specified. Supply the path and name to the raw file either directly in the FileName property or by specifying a variable in the FileNameVariable property.

OnError,,,Load Open Batches and Process Files,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1071636390,0x,The file name is not properly specified. Supply the path and name to the raw file either directly in the FileName property or by specifying a variable in the FileNameVariable property.

OnError,,,POSBasketImport,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1071636390,0x,The file name is not properly specified. Supply the path and name to the raw file either directly in the FileName property or by specifying a variable in the FileNameVariable property.

OnError,,,DF_Header_Header,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1073450901,0x,"component "rsHeader" (365)" failed validation and returned validation status "VS_ISBROKEN".

OnError,,,Move All Data,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1073450901,0x,"component "rsHeader" (365)" failed validation and returned validation status "VS_ISBROKEN".

OnError,,,Load Open Batches and Process Files,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1073450901,0x,"component "rsHeader" (365)" failed validation and returned validation status "VS_ISBROKEN".

OnError,,,POSBasketImport,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1073450901,0x,"component "rsHeader" (365)" failed validation and returned validation status "VS_ISBROKEN".

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Sep 17, 2015

I have created some packages in visual studio and run the packages from there and they all run fine. I have then imported the THEM in SQL Integration services Catalogues and run the packages individually and they all run successfully.When I tried to create the job to run the packages in a scheduled job I get the following error messages: Backup database error: failed to lock variable "RunID" for access with error 0xc001001 "The variable cannot be found. This occurs when an attempt is made to retrieve a variable from the variable collection on a container during execution of the package and the variable is not there.....

Backup database error. The execute method on the task. Backup database returned code 0x80131904 (Login failed for user 'loginname' The execute method must succeed and indicate the result using an "out" parameter.

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Deadlock On TAB Lock

Jan 24, 2006

I have a small database and a smalll table ( Table ID=565577053,with two
indexes on this table). when more than one user connected, I got the deadlock on the index KEY and PAGE lock. I setup index with "DisallowRowLock" and "DisallowPageLock" , seems kill the index KEY and PAGE lock problem, but I got this TAB lock situation instead as following:


2006-01-18 09:51:37.87 spid4 ----------------------------------
2006-01-18 09:51:37.87 spid4 Starting deadlock search 15

Deadlock encountered .... Printing deadlock information
2006-01-18 09:51:37.87 spid4
2006-01-18 09:51:37.87 spid4 Wait-for graph
2006-01-18 09:51:37.87 spid4
2006-01-18 09:51:37.87 spid4 Node:1
2006-01-18 09:51:37.87 spid4 TAB: 10:565577053 [] CleanCnt:3
Mode: S Flags: 0x0
2006-01-18 09:51:37.87 spid4 Grant List 0::
2006-01-18 09:51:37.87 spid4 Owner:0x42c03ba0 Mode: S Flg:0x0
Ref:2 Life:02000000 SPID:77 ECID:0
2006-01-18 09:51:37.87 spid4 SPID: 77 ECID: 0 Statement Type: DELETE
Line #: 1
2006-01-18 09:51:37.87 spid4 Input Buf: RPC Event: sp_executesql;1
2006-01-18 09:51:37.87 spid4 Requested By:
2006-01-18 09:51:37.87 spid4 ResType:LockOwner Stype:'OR' Mode: IX
SPID:64 ECID:0 Ec:(0x4AEAF530) Value:0x42c0df00 Cost:(0/D4)
2006-01-18 09:51:37.87 spid4
2006-01-18 09:51:37.87 spid4 Node:2
2006-01-18 09:51:37.87 spid4 TAB: 10:565577053 [] CleanCnt:3
Mode: S Flags: 0x0
2006-01-18 09:51:37.87 spid4 Grant List 0::
2006-01-18 09:51:37.87 spid4 Owner:0x42c03e00 Mode: S Flg:0x0
Ref:2 Life:02000000 SPID:64 ECID:0
2006-01-18 09:51:37.87 spid4 SPID: 64 ECID: 0 Statement Type: DELETE
Line #: 1
2006-01-18 09:51:37.87 spid4 Input Buf: RPC Event: sp_executesql;1
2006-01-18 09:51:37.87 spid4 Requested By:
2006-01-18 09:51:37.87 spid4 ResType:LockOwner Stype:'OR' Mode: IX
SPID:77 ECID:0 Ec:(0x4951D530) Value:0x42c03da0 Cost:(0/D4)
2006-01-18 09:51:37.87 spid4 Victim Resource Owner:
2006-01-18 09:51:37.87 spid4 ResType:LockOwner Stype:'OR' Mode: IX
SPID:77 ECID:0 Ec:(0x4951D530) Value:0x42c03da0 Cost:(0/D4)
2006-01-18 09:51:37.87 spid4
2006-01-18 09:51:37.87 spid4 End deadlock search 15 ... a deadlock was
found.
2006-01-18 09:51:37.87 spid4 ----------------------------------

How can I get rid of this deadlock without changing the application
code(without using set the isolation level or NOLOCK hint). When I load more
data, will this problem goes away?
Any kind of help will be appreciate.

Hanson

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Sep 10, 2007

Hello,

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Executed as user: xxx. Transaction (Process ID 53) was deadlocked on lock | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction. [SQLSTATE 40001] (Error 1205). The step failed.

The process ID changes for every error. Sometimes its 51, 56, or 54 as well.

I have checked several times, but there is no other process that runs at that time. I even rescheduled it for a different time, but even then it fails about once every week or two.

How can i check what is the other procedure it is deadlocking with, if it is? OR what exactly is the problem, if it is not with any other process?

Any help and/or guidance is much appreciated.

Thanks,

J

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Apr 22, 2008



Hello, I'm gettting a deadlock. One of the resources is a metadata lock in service broker.

this is from the deadlock graph.

<process id="process1fc2325c8" taskpriority="0" logused="0" waitresource="METADATA: database_id = 5 CONVERSATION_GROUP($hash = 0xa927b1ef:0x691c259b:0xd5edc9)" waittime="13250" ownerId="3702420299" transactionname="GetDialogByHandle" lasttranstarted="2008-04-22T10:46:31.457" XDES="0x927baaf8" lockMode="X" schedulerid="2" kpid="7316" status="suspended" spid="173" sbid="2" ecid="0" priority="0" transcount="2" lastbatchstarted="2008-04-22T10:46:31.457" lastbatchcompleted="2008-04-22T10:45:51.567" clientapp="SQL Queue Activation Service" hostname="82994-APP1" hostpid="2396" loginname="VIAGOGORSQueue.Activation" isolationlevel="serializable (4)" xactid="3702420292" currentdb="5" lockTimeout="4294967295" clientoption1="673185824" clientoption2="128056">



would anyone shed some light??

thanks!

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May 12, 2008

Hi ,
I have some issues with deadlock.I am getting deadlock becuase of two
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Select statements should have always shared lock.I am not getting why
its doing exclusive lock and creating deadlock.


5/6/2008 12:38 spid4s Unknown Deadlock encountered €¦. Printing
deadlock information
5/6/2008 12:38 spid4s Unknown Wait-for graph
5/6/2008 12:38 spid4s Unknown Log Viewer could not read information
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5/6/2008 12:38 spid4s Unknown KEY: 9:72057594050117632 (8d036f07c58f)
CleanCnt:3 Mode Flags: 0Ă—0
5/6/2008 12:38 spid4s Unknown Grant List 3:
5/6/2008 12:38 spid4s Unknown Owner:0Ă—12E9F160 Mode: S Flg:0Ă—0 Ref:1
Life:00000001 SPID:68 ECID:0 XactLockInfo: 0Ă—353D1C54
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5/6/2008 12:38 spid4s Unknown Input Buf: Language Event: (@actDefId
nvarchar(36)@stateList varchar(1)@stateList1 varchar(1)@procRelObjType
smallint@procRelObjIdList varchar(36))
5/6/2008 12:38 spid4s Unknown Requested By:
5/6/2008 12:38 spid4s Unknown ResType:LockOwner Stype:€™OR€™Xdes:
0Ă—2FBB67F0 Mode: X SPID:112 BatchID:0 ECID:0 TaskProxy0Ă—0792E378)
Value:0Ă—38baa20 Cost0/11888)
5/6/2008 12:38 spid4s Unknown Log Viewer could not read information
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5/6/2008 12:38 spid4s Unknown Node:2
5/6/2008 12:38 spid4s Unknown KEY: 9:72057594049986560 (6f02e1cd37c3)
CleanCnt:3 Mode:X Flags: 0Ă—0
5/6/2008 12:38 spid4s Unknown Wait List:
5/6/2008 12:38 spid4s Unknown Owner:0Ă—12396EE0 Mode: S Flg:0Ă—2 Ref:1
Life:00000000 SPID:90 ECID:0 XactLockInfo: 0Ă—0AA8178C
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Line #: 4
5/6/2008 12:38 spid4s Unknown Input Buf: Language Event: (@actDefId
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smallint@procRelObjIdList varchar(36))
5/6/2008 12:38 spid4s Unknown Requested By:
5/6/2008 12:38 spid4s Unknown ResType:LockOwner Stype:€™OR€™Xdes:
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5/6/2008 12:38 spid4s Unknown Log Viewer could not read information
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If you have any idea regarding this please let me know ASAP.


Thanks in advance .

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Oct 17, 2007



I have a deadlock that I can't figure out. Both processes are doing a select from the same table. The owner mode on both is IX and the request mode is S. The lock is a Page Lock.

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Apr 7, 2004

Hi
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At the same time if User 2 also clicks the same button which calls same SQL stored procedure. This procedure selects Group B of records of Database Page1.

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CREATE TABLE [dbo].[tblOnboardingSequence](
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Jul 20, 2005

I have a combo box where users select the customer name and can eithergo to the customer's info or open a list of the customer's orders.The RowSource for the combo box was a simple pass-through query:SELECT DISTINCT [Customer ID], [Company Name], [contact name],City,Region FROM Customers ORDER BY Customers.[Company Name];This was working fine until a couple of weeks ago. Now wheneversomeone has the form open, this statement locks the entire Customerstable.I thought a pass-through query was read-only, so how does this do atable lock?I changed the code to an unbound rowsource that asks for input of thefirst few characters first, then uses this SQL statement as therowsource:SELECT [Customer ID], [Company Name], [contact name],City, Region Fromdbo_Customers WHERE [Company Name] like '" & txtInput & "*' ORDER BY[Company Name];This helps, but if someone types only one letter, it could still bepulling a few thousand records and cause a table lock.What is the best way to populate a large combo box? I have too muchdata for the ADODB recordset to use the .AddItem methodI was trying to figure out how to use an ADODB connection, so that Ican make it read-only to eliminate the locking, but I'm striking outon my own.Any ideas would be appreciated.Roy(Using Access 2003 MDB with SQL Server 2000 back end)

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Dead Lock Error

Jun 19, 2006

I'm having a transactional replication which replicates data every 1min.... and i got a job which runs every 15mins and pulls the reports from source db which is being replicated.

Some times when the replication is pushing the data the same time the job is trying to generate reports and as the table is being locked at the time of replication the dead lock issue is rinsing and the job is getting failed.

Please some one help me in solving this issue.

Thanks

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Feb 6, 2008

I've read all the posts... set the security policy (for the service account running SQL Server) to lock pages in memory... ran gpupdate... still same error... HELP !!!!

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ADS System Timed Out Waiting For Lock Error

Feb 6, 2007

I am attempting to modify the ADS sample to work with my own application and am running into a snag. I have a simple sqlce database that has two tables in it. I have everything working up until the point where I try to "Pull" the data. At this point in time this is what happens.

1.) I successfully Drop Table1 from the SQLCE database and then Pull "Table1" from the desktop database

2.) When attempting to Pull Table2. It runs the DoesTableExist Function, identifies that the table does exist and therefore tries to run the "DropTable" routine before Pulling the desktop Table2 data. As soon as the sqlCmd.ExecuteNonQuery of the DropTable routine runs I get the following error....

"The system timed out waiting for a lock. [ Session id = 1,Thread id = 1318094114,Process id = 1318068802,Table name = Table2,Conflict type = x lock (s blocks),Resource = DDL ][Table2]"

Of Note...I converted the sample to VB.NET so it's possible something didn't convert right? My guess is that it probably has something to with my SQLCE Database but I haven't the slightest clue where to go from there. Anyone have any ideas what might be going on?

Thanks,

Mike

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SQL 2012 :: Error 1222 - Lock Request Time Out Period Exceeded

Mar 21, 2013

What is this? How do I fix it? I get a ton of these and it slows down the server for 5 minutes.

An error occurred in Service Broker internal activation while trying to scan the user queue 'msdb.dbo.ExternalMailQueue' for its status. Error: 1222, State: 51. Lock request time out period exceeded. This is an informational message only. No user action is required.

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Data Access :: Selecting Data Without Making Any Lock

Oct 26, 2015

I have a scenarios where if I execute select * from tbl it should display the all the records without waiting to release any lock.  For example suppose I have one table called tbl and one session is updating one records and not committed yet and in other session if i execute select * from table I can see all the records, for that records it can show me older version. but my select statement should not wait to commit another session and also it should not show the modified data.

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Sep 18, 2006

Hello everyone,I have a web project where users access a aspx page to view information stored in an SQL database.My client want that one user can access a row of information and see it, all other users shouldn't be able to view or update the same row?it means whenever a row of data is displayed by some user, this row should be locked even for beeing viewed by all other users, when this user close this page, this row will be available. ?I should do this in code behind or something in sql...How can I do that???

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Oct 6, 2003

I remember there's a command you can type into SP . so no one else can see your SP even the SA. can anyone tell me what's the command is thanks!!

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Mar 27, 2001

Hello,

An application we are designing is behaving rather strangely. Basically, we
have a trigger on SQL 2000 on W2K Server watching for a record update. When
that happens a stored procedure gets executed which in turn spawns a VB that extracts that record, applies some rules to it, and writes a text file to disk. 9 out of 10 times, this program will cause a CPU spin, and it can't be killed from the Task Manager.

I did not write the VB app, I am writing the front end for the application in ColdFusion, but I need some ideas on what might be causing such behavior and how can the problem can be diagnosed. Thanks for any help!

Stas Newdel

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Sep 3, 2007

Is it good practice to use WITH (NO LOCK) on SELECT statements, ie
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May 30, 2006

Hi,
i have a big problem , i work with sql 2000 on windows 2000.
When user do a select against my database sqlserver lock all the table and nonoe can work.
Haw can i change the isolation level for a ropw and for all the db.
Thanks.

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Mar 29, 2007

Hello,

Wondering if anyone might have a guess about this.

I have a small 4 table DB. it's got several stored proc's and it's accessed through .NET to fill it in and get data from it.

It's been working just fine. But this morning, while it was doing its thing, I experimented with it by adding then deleting a View (through the View Wizard.)

Then later I started noticing that my .Net calls had slowed to a crawl (I hadn't made any code changes)and even making direct queries through Query Analyzer had slowed too.

My question is: being that there were no network issues, could the View create/delete have caused the DB to come to a halt or perhaps a table lock-up?

While I'm at it, is there anything that I can put in stored proc's or other places to prevent locking issues (if that's what happened here.)

I already use Begin/Commit Tran pairs.

And sorry if this post doesn't read like a SQL beginner, but believe me, I am.

Thanks for your advice!!


--PhB

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Aug 20, 2007

Lets say i have a view.

vuTestingNoLocks

this view looks like this...
Create View vuTestingNoLocks as
SElect *

From dbo.Employees
inner Join dbo.EmployeeTerritories on EmployeeTerritories.EmployeeID = Employees.EmployeeID



If I select from this view using Select * From vuTestingNoLocks (NOLOCK)



Does the (nolock) command propegate down through the tables? Meaning will it scan tables that are locked still ignoring their locks?

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