Record Locking - Against SQL Server

Posted on 2002-04-23
Last Modified: 2010-05-02
I'm using VB6 against an SQL Server 7 database.
I'm having trouble coding for a case where more than one user is accessing the same record.
If a user makes changes to the record and saves the record, the record should be saved and refreshed on the server.
The application consists of a datagrid in which the user can double-click on a record in the grid to make changes.
Then, a form is brought up to allow the user to make changes.
The way the code is written now is this:
After the user exits the form after having made changes, I run the same sql statement again to refresh and populate the grid.
But, this isn't working.
The update is only working on the machine where the user made the changes.
On other client computers accessing the grid at the same time, the changes aren't updated.

Is there some sort of commit I need to make to save all of the changes up-to-the-minute?

Thanks in Advance
Question by:jtrapat1
LVL 75

Expert Comment

by:Anthony Perkins
ID: 6964206
Are you using the ADO Data Control?  If so, this might explain the problem.

LVL 17

Expert Comment

ID: 6964210
There is an issue here with the way that multiple users are responsible for the same data.  What type of application is it? Could the user's responsibilities be divided?

Expert Comment

ID: 6964308
You could try a CursorType property of 2 in your ADODC or the code that opens your recordset.  If you're using ADO, anyway.
Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.


Author Comment

ID: 6965649
I'm not using the ADO data control.
I'm using a recordset as a data source for the datagrid and it's still not updating for each concurrent user.

This is a client-server application.


Author Comment

ID: 6965688
I'm not using the ADO data control.
I'm using a recordset as a data source for the datagrid and it's still not updating for each concurrent user.

This is a client-server application.


Accepted Solution

barendb earned 200 total points
ID: 6971331
You need to requery all users' recordsets periodically, because they will only see data up to the last change that they have made.  Try the following, update a record on one user's machine, save changes.  Now update another record on another user's machine and save the changes, you should be getting botth changes back on the second machine, because you requery after the update.

Featured Post

DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Most everyone who has done any programming in VB6 knows that you can do something in code like Debug.Print MyVar and that when the program runs from the IDE, the value of MyVar will be displayed in the Immediate Window. Less well known is Debug.Asse…
I was working on a PowerPoint add-in the other day and a client asked me "can you implement a feature which processes a chart when it's pasted into a slide from another deck?". It got me wondering how to hook into built-in ribbon events in Office.
Get people started with the process of using Access VBA to control Excel using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Excel. Using automation, an Access application can laun…
Get people started with the utilization of class modules. Class modules can be a powerful tool in Microsoft Access. They allow you to create self-contained objects that encapsulate functionality. They can easily hide the complexity of a process from…

832 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question