[Last Call] Learn about multicloud storage options and how to improve your company's cloud strategy. Register Now

x
?
Solved

before update trigger to prevent a field edit

Posted on 2006-11-23
3
Medium Priority
?
2,190 Views
Last Modified: 2008-01-09
Can someone show me a sample of a trigger that at the time of an insert copies the value in field1 to field2 and also on an edit prevents field2 from being altered?

Lets assume both fields are INT


Thanks!
0
Comment
Question by:schworak
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 29

Accepted Solution

by:
Gautham Janardhan earned 2000 total points
ID: 18005759
create TRIGGER MyTrig
ON mytable
FOR  INSERT
AS
BEGIN
UPDATE mytable
   SET field2 = inserted.field1
      FROM inserted, mytable
         WHERE inserted.keyvalue = mytable.keyvalue
             
END
0
 
LVL 29

Assisted Solution

by:Gautham Janardhan
Gautham Janardhan earned 2000 total points
ID: 18005760
create TRIGGER MyTrigUPD
ON mytable
FOR  UPDATE
AS
BEGIN
UPDATE mytable
   SET field2 = deleted.field1
      FROM deleted, mytable
         WHERE deleted.keyvalue = mytable.keyvalue
             
END
0
 
LVL 3

Author Comment

by:schworak
ID: 18008181
Thanks!

I have been working in Oracle for a while now and been neglecting my SQL Server skills (which weren't all that strong to start with) so I was having trouble getting started.

This gave me what I needed now on to making it the full complexity I needed.

Great answers!
0

Featured Post

Ask an Anonymous Question!

Don't feel intimidated by what you don't know. Ask your question anonymously. It's easy! Learn more and upgrade.

Question has a verified solution.

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

Ever wondered why sometimes your SQL Server is slow or unresponsive with connections spiking up but by the time you go in, all is well? The following article will show you how to install and configure a SQL job that will send you email alerts includ…
What if you have to shut down the entire Citrix infrastructure for hardware maintenance, software upgrades or "the unknown"? I developed this plan for "the unknown" and hope that it helps you as well. This article explains how to properly shut down …
Via a live example, show how to extract information from SQL Server on Database, Connection and Server properties
Viewers will learn how to use the SELECT statement in SQL to return specific rows and columns, with various degrees of sorting and limits in place.

656 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