I have one procedure that gets executed many times per day(thousands at least). I consistently get blocking in my database, as users compile this stored procedure. How can I keep this from recompiling all the time, and bogging down my database? I tried the keep plan option in the portion of the code that uses tembdb, and that doesn't work. thanks.
View 1 RepliesHello!I am trying to investigate strange problem with particular storedprocedure. It runs OK for several days and suddenly we start gettingand lotof locks. The reason being [COMPILE] lock placed on this procedure. Asaresult, we have 40-50 other connections waiting, then next connectionusingthis procedure has [COMPILE] lock etc. Client is fully qualifyingstoredprocedure by database/owner name and it doesn't start with sp_. I knowthese are the reasons for [COMPILE] lock being placed. Is theresomethingelse that might trigger this lock? When troubleshooting this issue, Inoticed there was no plan for this procedure in syscacheobjects. Thestoredprocedure is very simple (I know it could be rewritten/optimized butourdeveloper wrote it):CREATE PROCEDURE [dbo].[vsp_mail_select]@user_id int,@folder_id int,@is_read bit = 1, --IF 1, pull everything, else just pull unread mail@start_index int = null, --unused for now, we return everything@total_count int = null output, -- count of all mail in specifiedfolder@unread_count int = null output -- count of unread mail in specifiedfolderASSET NOCOUNT ONselect m1.* from mail m1(nolock) where m1.user_id=@user_id andfolder_id=@folder_id and ((@is_read=0 and is_read=0) or (@is_read=1))orderby date_sent descselect @total_count = count(mail_id) from mail m1(nolock) wherem1.user_id=@user_id and folder_id=@folder_id and ((is_read=0 and@is_read=0)or (@is_read=1))select @unread_count = count(mail_id) from mail m1(nolock) wherem1.user_id=@user_id and folder_id=@folder_id and is_read=0GOI was monitoring server for a couple of day before and I am not surewhythis happens every 3-4 days only!Any help on this matter would be greately appreciated!Thanks,Igor
View 1 Replies View RelatedTo all,
When a stored proc is executed in SQL server 2000, it is holding a EXCLUSIVE [COMPILE] lock on the proc and the proc os getting recompiled every time it is executed. This is happening with most of the procs that are called from this proc. When multiple users are executing the same process they are having to wait until the other users are done compiling the procs. The lapse time is growing exponentially with multiple users.
I have looked at several places to find a solution for this. Microsoft Articles Q243586 and Q263889 have provided me with some options; but at this point, I need a miracle.
All these procs users temp tables. I have got the code changed to replace most of them with Table datatypes (on SQL2K only) . Some of them still need to use temp tables as they are cross referenced by multiple procs.
I am hopeful, there is some one out there who has dealt with this kind of situations before. Any ideas/sugessions are greatly appreciated..
Thanks
Hello,Can we lock stored procedure until its execution is complete ?I dont want 2 clients to simultenously execute the stored procedure inSql Server 2000.My front end is ASP.net 1.0Thanks in advance.waiting for the reply.
View 2 Replies View RelatedHi,
I have some questions about locking tables in stored procedures. I got some excellent tips from my last post, but since it's sort of a different problem I figured I'd post it separately.
I have a large log table I need to do manual, periodic clean-up process on, which basically is purging unneccessary log-entries. The idea is to select out the 1-3% I need to another table, drop the old table, and rename the new table to the old one.
The problem is that I most likely will need to lock the entire table while I do all the clean-up stuff. If a client manages to add things inbetween this is going on, I could end up loosing data.
The table looks like this:
Logid PK
LogTypeID -- what category
LogValue --
LogTime -- when it occurred
My imaginary stored procedure looks something like this:
CREATE PROCEDURE ShrinkDB AS
-- 1)
"lock table log" -- do I have to do something like this?
-- 2)
select * into log_keep FROM Log where
(
logtypeid <> 2020 AND -- activity played
logtypeid <> 5020 AND -- database connected
-- ....etc et..... about 10 different things I don't need to keep
or logtime > dateadd(d, -1, getdate()) -- keep everything from last 24 hours
)
-- 3)
drop table log
-- 4)
EXEC sp_rename 'log_keep', 'log'
GO
I'm not able to figure out wether I need to run some sort of "Lock" command or not, or if everything inside a stored procedure automatically is locked. If so, I shouldn't worry about loosing any data I guess??
Hopefully it works that way, but if not I assume I'll run into these two problems:
- If a client logs immediately after the Selecet, could data be logged AFTER the select, but BEFORE the drop table-command? In which case I guess I would loose data?
- Immediately after the drop table log in step 3, there's no table named 'log' in my database. 'Log' will be "created" when I run step 4. This means I could perhaps loose data since the client for a brief moment can't log data to the 'log' table?
Hopefully someone can clearify this for me, I've read the documentation, but I don't feel too sure on this subject.... :-)
When I run the SQL Profiler to detect lock escalation, I noticed it detected a lot of lock escalation with the textdata indicating "create procedure" on certain stored procedure.
View 9 Replies View RelatedHi All,I have a table that holds pregenerated member IDs.This table is used to assign an available member id to web sitevisitors who choose to register with the siteSo, conceptually the process has been, from the site (in ASP), to:- select the top record from the members table where the assigned flag= 0- update the row with details about the new member and change theassigned flag to 1- return the selected member id to the web pageNow I'm dealing with the idea that there may be brief, high trafficperiods of registration, so I'm trying to build a method (storedprocedure?) that will ensure the same member id isn't returned by theselect statement if more than 1 request to register happens at thesame instant.So, my question is, is there a way, once a record has been selected,to exclude that record from other select requests, within the boundsof a stored procedure?ie:- select statement is executed and row is instantly locked; any otherselect statement running at that exact moment will receive a differentrow returned and sill similarly lock it, ad nauseum for as manysimultaneous select statements as take place- row is updated with details and flag is updated to indicate themember id is no longer unassigned- row is released for general purposes etcIf what I'm suggesting above isn't practical, can anyone help meidentify a different way of achieving the same result?Any help immensely, immensely appreciated!Much warmth,Murray
View 12 Replies View RelatedHello:I run one process that calls the following the store procedure andworks fine.create PROCEDURE sp_GetHostSequenceNumASBEGINSELECT int_parameter_dbf + 1FROM system_parameter_dbtWHERE parameter_name_dbf = 'seqNum'UPDATE system_parameter_dbtSET int_parameter_dbf = int_parameter_dbf + 1WHERE parameter_name_dbf = 'seqNum'ENDGOIf I run two processes that call the above store procedure, I mightoccasionally get the dirty data of int_parameter_dbt. I guess that iscaused by two processes accessing to the same resource simultaneously.Is there any way to lock the store procedure call from MSSQL Serverand allow only one process to access it at a time?Thanks for help.Best Jin
View 2 Replies View RelatedI 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
Hello, I have one store procedure that writes something data to one physical sql table 'MyTable' and on beginning I first call:DELETE FROM MyTableProcedure returns at the end data from 'MyTable' as on SELECT. PROBLEM:I started SQL Manager on my Laptop and on Computer near me and all pointed to same database (on Server) and I run that procedure simultaneously on Laptop and Computer at the same time (two hands on F5 button on these computers). Occasionally when clicking with both hands at the same time I got no records at the end of execution (on both computers), otherwise I got the results.WHAT I THINK IS PROBLEM:Somhow one SP start working and it did not come to the end and another computer called this SP and execute first command (DELETE FROM MyTable) and I got empty records at the end..WHAT I NEED:I need to prevent this situation to get empty records. All computers must get these records always. How I can use some sort of LOCKs to do this?Or to do that on C# application level using LOCK command? Thanks in advanceAleksandar
View 2 Replies View RelatedHi
We are facing an acute situation in our web-application. Technology is ASP.NEt/VB.NET, SQL Server 2000.
Consider a scenario in which User 1 is clicking on a button which calls a SQL stored procedure. This procedure selects Group A of records of Database Page1.
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.
So, its the same Page1 but different sets of records. At this moment, both the calls have shared locked on the Page1 inside the procedure.
Now, in call 1, inside the procedure after selecting Group A of records, the next statement is and update to those records. As soon as update statement executes, SQL Server throws a deadlock exception as follows :
Transaction (Process ID 78) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction
We are able to understand why its happening. Its because, Group A and Group B of records are on the same Page1. But both the users have shared lock on the Page1. So, no one gets the exclusive lock in records for update, even though, the records are different.
How can I resolve this issue? How can I get lock on wanted rows instead of entire page?
Please advice. Thanks a bunch.
Pankaj
Welcome
i am want to teach sql . how to
install compile
When I try and create the following stored procedure, I get the following error message:
Any ideas as to what went wrong? Here is the stored procedure
USE [DBS07]GO/****** Object: StoredProcedure [dbo].[updateMarketName] Script Date: 09/17/2007 22:28:20 ******/SET ANSI_NULLS ONGOSET QUOTED_IDENTIFIER ONGOCREATE PROCEDURE [dbo].[updateSubMarketName]( @inMarketId int, @inSubMarketId int, @inSubMarketDescription nvarchar(100), @inActive nvarchar(2), @inLastUpdateDate datetime, @inLastUpdateUser nvarchar(100))AS SET NOCOUNT OFF;UPDATE [SubMarket] SET [SubMarketDescription] = @inSubMarketDescription, [Active]= @inActive, [LastUpdateDate] = @inLastUpdateDate,[LastUpdateUser] = @inLastUpdateDateUserWHERE ([MarketId] = @inMarketId)AND (SubMarketId]= @inSubMarketId)
Here is my error message
Error message in Red:Msg 137, Level 15, State 2, Procedure updateSubMarketName, Line 12Must declare the scalar variable "@inLastUpdateDateUser".
I got some problem about message "Compile Error, In Query expression "
Someone help me please
Best Regard
My E-mail = paiboonm@cuel.co.th
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.
I have the following table;CREATE TABLE [x_Note] ([x_NoteId] [int] IDENTITY (1, 1) NOT NULL ,[Note] [varchar] (7200) COLLATE SQL_Latin1_General_Pref_CP1_CI_AS NOTNULL ,CONSTRAINT [PK_x_NoteId] PRIMARY KEY CLUSTERED([x_NoteId],) WITH FILLFACTOR = 90 ON [USERDATA] ,) ON [USERDATA]GOMy clients want me to take the contents of the Note column for each rowand combine them. In other words, they basically want:Note = Note [accumulated from previous rows] + Char(13) [because theywant a carriage return] + Note [from current record].What is the most efficient and relatively painless way to do this? Ithink it might require a cursor, but I'm not sure if there is a moreelegant set-based method to make this happen.
View 14 Replies View RelatedGreetings,
This morning one of our jobs failed, so I eventually ran the SSIS package manually and found the flow "hanging" at a script task. The fix was to open the script in design mode and hit Save, which I believe compiles the code. Then the package ran as it has normally for several months.
There was a recent Windows update run on this server. I don't know what was updated, as it was the DBA that did that. It seems possible that a .NET framework update would cause this problem, does anyone have any thoughts on this or anything else causing this?
Given the extent of some SSIS environments, and ours is pretty extensive, this could be a real pain to go in and manually recompile each and every script task.
Thanks
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".
I need to find a way to use conditional compilation option to change the connection string in ado.net datasets 2.0.
Debug > connection 1 : test server
Release > connection 2 : real server
How is it possible ?
I have a custom application that on occasion requires thousands of TSQLfiles (on the file system) to be compiled to the database.What is the quickest way to accomplish this?We currently have a small vbs script that gets a list of all the files,the loops around a call to "osql". each call to osql opens/closes aconnection to the destination database (currently across the network).
View 5 Replies View RelatedWhen I compile or save a SSiS package in the SQL Server Business Intelligence Development Studio I get the error
Failure saving package. (Microsoft Visual Studio)
Insufficient memory to continue the execution of the program.
Sometimes, if I wait longer time, the package can suddenly be saved.
I have 2 GB of RAM und over 15 GB of free space on my disk. Thus, there should be anough space to save the package.
What should I do to resolve this problem? It seems to be a bug.
To splitt the package would not be a solution.
Hi,
I have a requirement to do a data migration work for a Japanese client. The problem is I don't know Japanese and the client SME does not know English. So, my requirement is, I should be able to create a SSIS package in English and then should be able to compile or translate it into Japanese so that my Japanese SME can understand the package. Is it possible to do? If so, how can I do it?
Thanks in advance.
Hello,
actually i try to create a native c++ desktop-application that will have to access a SQL CE 3.1 db-file over OLE DB. For that purpose i want to use the same self written wrapper class(for the OLE DB stuff) that i use for a native WM2003 application that creates the db files to be accessed on the desktop application.
The WM2003 application including my wrapper class compiles fine with eVC++ 4.0.
But now with VS 2005 including the same class i got this compile error: "Redefinition of class IRowsetBookmark". I have to add that i used the application wizard to generate a mfc sdi application with database support(ODBC is used in this app, too).
I figured out that in the following 2 inlcuded files IRowsetBookmark is defined:
1)The manually included "ssceoledb30.h" in my wrapper class.
2)The probably from the application wizard included "oledb.h" (in "Microsoft Visual Studio 8VCPlatformSDKInclude")
My workaround for the moment is to comment the class definition in the file "ssceoledb30.h" out because i don't use this OLE DB interface in my wrapper class. But i don't think that this is the way that microsoft supposed to go.
Does anybody had this problem and solved it other way than simply comment one of the class definition out?
I would appreciate it when someone out there knows the answer and could tell me.
Kind regards,
Andre
from cl.exe I get a bunch of linker errors:
View 3 Replies View Related
I am trying to use a simple BEGIN TRY and END TRY in my SP. It is giving a compile time error such as
Line 13: Incorrect syntax near 'try'.
Why is this, can somebody help me out. Yes i am sure it is SQL Server 2005 on my machine.
The stored procedure, below, results in this error when I try to compile...
Msg 156, Level 15, State 1, Procedure InsertImportedReportData, Line 69
Incorrect syntax near the keyword 'ORDER'.
However the select statement itself runs perfectly well as a query, no errors.
The T-SQL manual says you can't use the keywords COMPUTE, COMPUTE BY, FOR BROWSE, and INTO in a cursor select statement, but nothing about plain old ORDER BYs.
What gives with this?
Thanks in advance
R.
The code:
Code Snippet
-- ================================================
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF object_id('InsertImportedReportData ') IS NOT NULL
DROP PROCEDURE InsertImportedReportData
GO
-- =============================================
-- Author: -----
-- Create date:
-- Description: inserts imported records, marking as duplicates if possible
-- =============================================
CREATE PROCEDURE InsertImportedReportData
-- Add the parameters for the stored procedure here
@importedReportID int,
@authCode varchar(12)
AS
BEGIN
DECLARE @errmsg VARCHAR(80);
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
--IF (@authCode <> 'TX-TEC')
--BEGIN
-- SET @errmsg = 'Unsupported reporting format:' + @authCode
-- RAISERROR(@errmsg, 11, 1);
--END
DECLARE srcRecsCursor CURSOR LOCAL
FOR (SELECT
ImportedRecordID
,ImportedReportID
,AuthorityCode
,[ID]
,[Field1] AS RecordType
,[Field2] AS FormType
,[Field3] AS ItemID
,[Field4] AS EntityCode
,[Field5] AS LastName
,[Field6] AS FirstMiddleNames
,[Field7] AS Title
,[Field8] AS Suffix
,[Field9] AS AddressLine1
,[Field10] AS AddressLine2
,[Field11] AS City
,[Field12] AS [State]
,[Field13] AS ZipFull
,[Field14] AS OutOfStatePAC
,[Field15] AS FecID
,[Field16] AS Date
,[Field17] AS Amount
,[Field18] AS [Description]
,[Field19] AS Employer
,[Field20] AS Occupation
,[Field21] AS AttorneyJob
,[Field22] AS SpouseEmployer
,[Field23] As ChildParentEmployer1
,[Field24] AS ChildParentEmployer2
,[Field25] AS InKindTravel
,[Field26] AS TravellerLastName
,[Field27] AS TravellerFirstMiddleNames
,[Field28] AS TravellerTitle
,[Field29] AS TravellerSuffix
,[Field30] AS TravelMode
,[Field31] As DptCity
,[Field32] AS DptDate
,[Field33] AS ArvCity
,[Field34] AS ArvDate
,[Field35] AS TravelPurpose
,[Field36] AS TravelRecordBackReference
FROM ImportedNativeRecords
WHERE ImportedReportID IS NOT NULL
AND ReportType IN ('RCPT','PLDG')
ORDER BY ImportedRecordID -- this should work but gives syntax error!
);
END
We have a view with many left joins. The original creators of this view might have been lazy or sloppy, I don't know. I have rewritten the query to proper inner joins where required and also nested left joins.
So rather then the following exemplary fragment
select <many items>
from A
left join B on B.id_A = A.id
left join C on C.id_B = B.idthis now looks like
select <many items>
from A
left join (B
join C on C.id_B = B.id
) on B.id_A = A.id
Compilation time of the original view was 18s, of the new rewritten view 4s. The performance of execution is also better (not counting the compile of course). The results of the query are identical. There are about 30 left joins in the original view.
I can imagine that the optimizer has difficulty with all these left joins. But 14s is quite a big difference. I haven't looked into detail in the execution plans yet. I noticed that in both cases the Reason for Early Termination of Statement Optimization was Time Out.
Hi,
View 10 Replies View RelatedHi,
I want to lock a table so others cannot lock it but able to read it inside transactions.
The coding I need is something like this: set implicit_transactions on begin transaction select * from table1 with (tablock, holdlock) update table2 set field1 = 'test' commit transaction commit transaction
I have tried the coding above, it won't prevent others from locking table1.
So, I changed the tablock to tablockx to prevent others from locking table1. But this will also prevent others from reading table1. So, how can I lock table1 so others cannot lock it but still able to read it?
Thank you for any help
When I install the SQL Server 2005 SP2 on my vista laptop, I get the following message: SQL server setup failed to compile te Managed Object Format (MOF) file c:program filesmicrosoft SQL Server90sharedsqlmgmproviderxpsp2up.mof. To proceed, see "troubleshooting an installation of SQL Server 2005" or "how to: View SQL Server 2005...
What did I wrong?
Greets,
Wouter
Hi all,
I try to learn "How to Access Stored Procedures with ADO.NET 2.0 - VB 2005 Express: (1) Handling the Input and Output Parameters and (2) Reporting their Values in VB Forms". I found a good article "Calling Stored Procedures from ADO.NET" by John Paul Cook in http://www.dbzine.com/sql/sql-artices/cook6. I downloaded the source code into my VB 2005 Express:
Imports System.Data
Imports System.Data.SqlClient
Imports System.Data.SqlTypes
Public Class Form_Cook
Inherits System.Windows.Form.Form
#Region " Windows Form Designer generated code "
Public Sub New()
MyBase.New()
'This call is required by the Windows Form Designer.
InitializeComponent()
'Add any initialization after the InitializeComponent() call
End Sub
'Form overrides dispose to clean up the component list.
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub
'Required by the Windows Form Designer
Private components As System.ComponentModel.IContainer
'NOTE: The following procedure is required by the Windows Form Designer
'It can be modified using the Windows Form Designer.
'Do not modify it using the code editor.
Friend WithEvents GroupBox1 As System.Windows.Forms.GroupBox
Friend WithEvents labelPAF As System.Windows.Forms.Label
Friend WithEvents labelNbrPrices As System.Windows.Forms.Label
Friend WithEvents UpdatePrices As System.Windows.Forms.Button
Friend WithEvents textBoxPAF As System.Windows.Forms.TextBox
Friend WithEvents TenMostExpensive As System.Windows.Forms.Button
Friend WithEvents grdNorthwind As System.Windows.Forms.DataGrid
Friend WithEvents groupBox2 As System.Windows.Forms.GroupBox
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.GroupBox1 = New System.Windows.Forms.GroupBox()
Me.labelPAF = New System.Windows.Forms.Label()
Me.labelNbrPrices = New System.Windows.Forms.Label()
Me.textBoxPAF = New System.Windows.Forms.TextBox()
Me.UpdatePrices = New System.Windows.Forms.Button()
Me.groupBox2 = New System.Windows.Forms.GroupBox()
Me.TenMostExpensive = New System.Windows.Forms.Button()
Me.grdNorthwind = New System.Windows.Forms.DataGrid()
Me.GroupBox1.SuspendLayout()
Me.groupBox2.SuspendLayout()
CType(Me.grdNorthwind, System.ComponentModel.ISupportInitialize).BeginInit()
Me.SuspendLayout()
'
'GroupBox1
'
Me.GroupBox1.Controls.AddRange(New System.Windows.Forms.Control() {Me.labelPAF, Me.labelNbrPrices, Me.textBoxPAF, Me.UpdatePrices})
Me.GroupBox1.Location = New System.Drawing.Point(8, 8)
Me.GroupBox1.Name = "GroupBox1"
Me.GroupBox1.Size = New System.Drawing.Size(240, 112)
Me.GroupBox1.TabIndex = 9
Me.GroupBox1.TabStop = False
'
'labelPAF
'
Me.labelPAF.Location = New System.Drawing.Point(8, 16)
Me.labelPAF.Name = "labelPAF"
Me.labelPAF.Size = New System.Drawing.Size(112, 32)
Me.labelPAF.TabIndex = 2
Me.labelPAF.Text = "Enter Price Adjustment Factor"
'
'labelNbrPrices
'
Me.labelNbrPrices.Location = New System.Drawing.Point(8, 80)
Me.labelNbrPrices.Name = "labelNbrPrices"
Me.labelNbrPrices.Size = New System.Drawing.Size(216, 16)
Me.labelNbrPrices.TabIndex = 5
'
'textBoxPAF
'
Me.textBoxPAF.Location = New System.Drawing.Point(120, 16)
Me.textBoxPAF.Name = "textBoxPAF"
Me.textBoxPAF.TabIndex = 0
Me.textBoxPAF.Text = ""
'
'UpdatePrices
'
Me.UpdatePrices.Location = New System.Drawing.Point(8, 48)
Me.UpdatePrices.Name = "UpdatePrices"
Me.UpdatePrices.Size = New System.Drawing.Size(88, 23)
Me.UpdatePrices.TabIndex = 6
Me.UpdatePrices.Text = "Update Prices"
'
'groupBox2
'
Me.groupBox2.Controls.AddRange(New System.Windows.Forms.Control() {Me.TenMostExpensive, Me.grdNorthwind})
<Part 1----To be continued due to the length of this post>
If any one can help
OLE DB provider 'MSDAORA' supplied inconsistent metadata for a column. Metadata information was changed at execution time. [SQLSTATE 42000] (Error 7356) OLE DB error trace [Non-interface error: Column 'ATP' (compile-time ordinal 1) of object '"IGS"."ABCD"' was reported to have a DBTYPE of 130 at compile time and 5 at run time]. [SQLSTATE 01000] (Error 7300). The step failed.
Thanks
www.databasetimes.net
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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