INTELLIGENT WORK FORUMS
FOR COMPUTER PROFESSIONALS

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Jobs

Canceling form with related table changed

Canceling form with related table changed

(OP)
Hi
Lets say we have invoice form (table_1) and we changed and saved something in related table_2. Now we want to cancel invoice form and roll back all the changes in related table_2.
What is your idea for handling this cancel? We use temporary tables for related records and update table_2 only when request is completed. Other ideas ?

 

RE: Canceling form with related table changed

Hi!

If the update is done inside a transaction frame, you can roll back the updates. Check out LOGOUT, COMMIT & ROLLBACK in the help.

Regards
 

RE: Canceling form with related table changed

(OP)
We use transactions when possible but in this situation it doesn't work.
User's edit form can lock related table for long time. We have other automated processes writing into that tables that won't stop and wait for COMMIT OR ROLLBACK ( scanners reading barcodes)

We tried different isolation levels but SQL manual clarified all.

Quote:


PostgreSQL Documentation
Chapter 12. Concurrency Control

...
This means it is a bad idea for applications to hold transactions open for long periods of time (e.g., while waiting for user input).

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members!

Resources

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close