Check For Record Lock
Apr 16, 2007Hi,
Any one can help me with the following requirement:-
. Checking the record if its lock before issues any statement
Any sample will be helpful
Best Regards
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How Can I Lock A Record
Sep 19, 2007hi all iam working on a ticketing application i want to avoid two users to book the same ticket the requirement is as follows
1. the system should show all the available tickets which is not yet booked
2.when two users book the ticket at the same time time it should not allow the two persons to update at the same tme
the main aim is to avoid data concurency
how can i get this done
How To Lock Record In SQL 7.0?
Oct 3, 2000When I connect to SQL to select(or insert,update) a record in MyTable, I want to restrict nobody can access it. How can I do? Can you give me an example about (or documentation)?
Thanks in advance.
I Want To Lock One Record
Nov 11, 2004Please help! I have a VB application used by multiple users. MS SQL 2000 backend.
When a user opens a record for editing, it want to mark the record as locked so that if other users try to open this record, it will not be available.
Currently, I'm using a programmatic method that basically sets a field 'lock" to 1 if the record is in use and 0 if not in use. But this has the side affact of locking the record if the user reboots their workstation. In addition, I don't believe that this is the best method and approach to achieve my goal.
Thanks very much for your help in advance. All ideas are welcome.
crownlog
Record Lock
Jan 2, 2004hi,
using VB 6.0, sql server 7.0, ADO 2.5
i will tell my requirement. i have a tran. window there i will select a chart number of a patient and do some changes and will go to next window for doing some other modification for the same patient, and again will go to other window. by this time don't allow other users to access the same patient chart number. should get a message like record locked by some other user.
please help me to solve this issue
prince
Record Lock
Mar 10, 2004i have an app that insert multiple rows into a table in sql using insert statments. i use a begin trans and commit trans.
here is the setup i have a table that contains 100 rows. i insert another 25 rows. in another app i try to edit a record in that table (a record from the first block of 100) i can't edit the record because my first app has not done its commit trans yet. i don't understand why i can't edit a record that was already in the table. i'm not trying to edit one of my newly inserted records.
please advise,
Thanks
Thomas
How To Lock Record On Select
May 29, 2008hi
I want to lock the record on select query so that no other user can update this record, is it possible and i want to unlock record when use stop view this record.
Record Lock - When Is It Started ?
Jul 9, 2006Suppose there is a SQL Server table with a trigger behind it.
Suppose a client VB (or VBA) program is trying to update a certain record in that table, say record #1, by issuing the update statement:
RS.update
My Question:
When is SQL Server starting to lock that record (record #1) ?
Right after the RS.update is issued OR after the trigger has been executed ?
________________________________
Thanks in advance.
Lock Record For Processing
May 27, 2008I run a query "BEGIN select * from NT_ins_params_S WITH (HOLDLOCK,ROWLOCK) where...... and load the result into an ADO object. I need to lock the row untill I am done processing and I thought that (HOLDLOCK,ROWLOCK) will do the job but it does not. What is the correct way for locking?
I am using sql 2000 server and interfacing with it using a program written in C#
Can I Lock The Record Which I Am Reading ?
Aug 30, 2005Can I lock the record which I am selecting ?
I want this lock is row level,not transaction level.
How to do it,please tell me.
Sql Server Record Lock
Oct 3, 2007
I have a Sql Express Database that I want to access from a remote tablet application. When the remote user accesses a record (which is a form + ink), I can't have anyone else accessing that record and drawing ink on the record's form, unitl the first user is done. How do I prevent access to that record in a user friendly way until the remote user is done and has updated his changes to the database?
thanks!
Using An Open SQLTransaction In Order To Lock A Record...
Jun 2, 2005Hello,I am trying to begin a transaction is ASP.NET that acts as a temporary lock on a record so that another web user can not gain access to that row of information. My problem is that when I begin the transaction, if the user then closes out of the browser completely, the temporary lock that is put on my table from the transaction does not go away. Further, I have no idea if it will or if there is a time range you can specifiy to do so.What I am wondering is if anyone has ever tried this before, or does anyone have a definite answer to the following question, "If I begin a transaction, and then I do NOT rollback or committ that transaction, will it ever rollback on its own and if so where can I set this time frame?"Thanks in advance for any help.
View 3 Replies View RelatedCheck Values Record By Record
Nov 14, 2007Consider this scenario.
I have two database in the sql server and consider that i have a query which has 4 tables inner joined.
When i execute the query in the database1 , the query is returning rows, But when i execute the same query in the database2, the query is not retuning rows . I know that the
no rows are returned because of missing data in the database2. But have no idea how to trace what values are missing in the database2. Please note the tables is having a huge
list of records by which manually comparison is painfull. Please consider i dont have any background idea of the values in the tables but just using it. Any help would be
appericated.
Check If Record Exists
Feb 1, 2007Hello,I created the following SQL script to check if a record exists:IF (EXISTS (SELECT LevelName FROM dbo.by27_Levels WHERE LOWER(@LevelName) = LOWER(LevelName))) Return (1)ELSE Return (0)And I also found in a web page another solution:IF EXISTS(SELECT 1 FROM TABLENAME WHERE LevelName=@LevelName) SELECT 1ELSE SELECT 0- Which approach should I use?- Why "SELECT 1 FROM"?- And when should I use SELECT or RETURN?All I need is to know if the record exists ... nothing else.I will use this procedure on an ASP.NET 2.0 / C# web site.I am not sure if this important but anyway ...Thank You,Miguel
View 6 Replies View RelatedCheck If Record Exists
Dec 24, 2007Hi,
I was wondering if someone can help.
In vb.net what is the best way to check if a record exists if you are using an sql data reader?
For my application I need to display a button control (make it visible on the page) if a record is available after executing my sql select statement.
cheers
Mark :)
Check For Primary Key Before Inserting New Record
May 17, 2005Hi,
Can someone please tell me the best practices for checking the primary key field before inserting a record into my database?
As an example I have created an asp.net page using VB with an SQL server database. The web page will just insert two fields into a table (Name & Surname into the Names table). The primary key or the Names table is "Name". When I click the Submit button I would like to check to ensure there is not a duplicate primary key. If there is return a user friendly message i.e. A record already exisits, if there no duplicate, add the record.
I guess I could use try, catch within the .APSX page or would a stored procedure be better?
Thanks
Brett
How To Check Previous And Next Record Values
May 22, 2008Hi all,
I wanted to check the previous and next record values.
For example:
sKey NextKey PreviousKey
1 2 Null
2 8 1
8 5 2
5 null 8
I wanted to check the value of NextKey of Prev record and Skey of Next record.
Any idea?
Regards
Helen
How To Check If A Record Is Already In The Database Before Importing?
Mar 6, 2006How to check if a record is already in the database I want to import to before importing?
My table have 2 primary key, and the DTS is suppose to be schedule to run every night, though it can be run whenever a user want to get the most updated data.
How To Check Previous And Next Record Values
May 22, 2008Hi all,
I wanted to check the previous and next record values.
For example:
sKey NextKey PreviousKey
1 2 Null
2 8 1
8 5 2
5 null 8
Ex : In the first record of the table, the NextKey is pointing to 2.
So the next record of Skey will be 2. The Next Key for this record is 8. Like wise the next record of this should have the Skey as 8.
Now I need to check whether the NextKey and SKey are correct for all rows.
For that I need to check the previous record of "Next key" and next record of "Skey".
Any idea?
Regards
Helen
Creating A Trigger To Check Before Deleting A Record
Jun 12, 2008I am using the tables created by the aspnet_regsql.exe tool for security. Basically, I need to ensure that an account named Administrator is never deleted. I also have a role named administrator, and I need to make sure that Administrator is never removed from the administrator role.Can I create a trigger to ensure that the Administrator is never deleted and that the Administrator is never removed from the Administrator role? I know it will probably be two separate triggers: one on the aspnet_users table and one on the aspnet_usersinroles table.Thanks a lot for the help!
View 1 Replies View RelatedPackage For Update/insert And Check For New Record
Apr 21, 2008hi,
i'm total newbee on SSIS packages and therefore need guidance.
I want to make a ssis package that (in order):
- check in table (tbl_orders) if there is any new order made
- if new order is made, update column (time_last_change)
- if this order has geography ID (ID_geography) inserted, insert name of geography.
Thank you in advance,
Check If Record Is Full-text Indexed
Apr 24, 2007Hi all,I am dealing with a very large database, and as soon as a record issubmitted I need to run a full-text query against it. I believe itmight take a while before the record is fully indexed and thereforewould not return a result.How can I check whether the record in question is already indexed, ifat all?This is MS SQL 2005Thanks in advance..
View 1 Replies View RelatedSQL Server 2012 :: Check To See If Columns Are NOT NULL In A Record
Jun 25, 2015I am looking for the best way to check to see if any columns are still NULL in a record. I have a form that gets filled out by users and the values entered into TableA. There are 6 columns in the table, 5 are responses and column6 indicates if the record is complete. So I want a way to see if all of the first 5 columns are NOT NULL and, if so, mark column6 with a 1.
I am thinking this would be a good thing for a trigger on INSERT or UPDATE to check to see if the first 5 columns are filled in and then mark the record as complete.
Integration Services :: Check Table For Existing Record Before Data Flow Task
Jun 1, 2015Using SSIS 2012 (within Visual Studio) on Windows 7.
Before allowing my Data Flow task to fire, I'd like to check the target table (OLE DB Destination) for a specific date value in a specific field. I've seen how the Lookup Task is commonly used to check for dupes before inserting, but I'm not able to use that method because the data value I want to search the table for is contained in a Global Variable (let's say "MyVariableDate").
Is there any way to check for any records in a target table where Date1 = MyVariableDate (i.e. scanning the entire table for any occurrence of MyVariableDate in the Date1 field)?
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, 2007I 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
Row Lock Versus Page Lock In SQL 2000.
Apr 7, 2004Hi
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
ERROR: A Variable May Only Be Added Once To Either The Read Lock List Or The Write Lock List.
May 22, 2006Hi,
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.
A Variable May Only Be Added Once To Either The Read Lock List Or The Write Lock List
May 10, 2006Hi 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".
How To Lock A Table So Others Cannot Lock It
May 23, 2001Hi,
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
Data Access :: How To Check All Connection Automatically During Routine Check By Using Batch File
May 20, 2015I have multiple ODBC connection and how to check all connection automatically during routine check by using batch file.
View 5 Replies View RelatedTOUGH INSERT: Copy Sale Record/Line Items For Duplicate Record
Jul 20, 2005I have a client who needs to copy an existing sale. The problem isthe Sale is made up of three tables: Sale, SaleEquipment, SaleParts.Each sale can have multiple pieces of equipment with correspondingparts, or parts without equipment. My problem in copying is when I goto copy the parts, how do I get the NEW sale equipment ids updatedcorrectly on their corresponding parts?I can provide more information if necessary.Thank you!!Maria
View 6 Replies View RelatedHow To Create An Copy Of A Certain Record Except One Specific Column That Must Be Different && Insert The New Record In The Table
Sep 1, 2006Hi
I have a table with a user column and other columns. User column id the primary key.
I want to create a copy of the record where the user="user1" and insert that copy in the same table in a new created record. But I want the new record to have a value of "user2" in the user column instead of "user1" since it's a primary key
Thanks.
Ways To Make This Work: Several Selectable Related Record For One Main Record.
Apr 6, 2007Hey all!
Sorry for the less then descriptive post title but I didn't find a better way to describe it. I'm developing an app in the express editions of VB and SQLserver. The application is a task/resource scheduler. The main form will have a datepicker or weekly overview and show all tasks scheduled per day. The problem is, I've got one or more people assigned to tasks and I wonder what's the best way to design this. Personally, I'd go for one Task table, a People table and a table that provides a link between them (several record per task, one for each person assigned linking TaskID and PplID). However, I don't see a nice way of showing this data to the end user, allowing him to edit/add etc on ONE screen.
To fix that the only way I see is just add columns to the Task table for every person with select boxes. This way everything can be done on one simple screen. This obviously does present some future issues.
On top of this, which people are available on a day varies and there should be an option to allow a user to set who is available on a specific day. Which would lead me to my first idea and add another table that would provide this. but then I'm having design issues again for the form.
I'm kinda stuck atm, can anyone shed some light on this. I'm sure there is an elegant way of doing this but I'm failing at finding it.
Thanks in advance,
Johan