Is it possible to have a trigger program that executes only on changes to specified fields in a file? If not, does IBM plan such support in DB2/400 in the future?
Yes, SQL triggers introduced in V5R1 allow you to scope the trigger execution to a specific field or set of fields. SQL Triggers can be defined over both SQL tables & physical files.
By submitting your email address, you agree to receive emails regarding relevant topic offers from TechTarget and its partners. You can withdraw your consent at any time. Contact TechTarget at 275 Grove Street, Newton, MA.
IBM currently does not have any plans to add this support for external triggers (i.e., ADDPFTRG command).
MORE INFORMATION ON THIS TOPIC
Search400.com's targeted search engine: Get relevant information on DB2/400.
The Best Web Links: tips, tutorials and more.
Check out this Search400.com Featured Topic: Database issues resolved
Related Q&A from Kent Milligan
To solve the SQL error -321 on IBM i6.1, use the new values statement to overcome the error. If you are using an older release, declare a cursor ...continue reading
When working with DB2 files with columns that have both short and long names, there is no option choose which column names are returned via ODBC ...continue reading
Create a host variable of the where in statement on the fly with dynamic SQL.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.