More or less all relational databases support transactions and commit
logic, precisely to handle the multiple user issue you are talking
about. That's one of the draws, perhaps the main one, of using a
relational database for enterprise applications.

And since your question is about using this *in RPG* it is actually
most suited for that list. Especially since RPG has some opcodes
specifically for that, which aren't in most languages. With most other
languages, this would be an SQL question (which you could also use in
RPG).

John Y.


On Thu, Jan 13, 2022 at 12:32 PM <smith5646midrange@xxxxxxxxx> wrote:

I have a header table and a detail table. The header table has an auto
increment field for its key that is used to join the detail table. If I
have multiple users updating the header table at the same time, how do I
know the value on the header record that was just inserted so it can used
when inserting the detail records? I have been googling and it looks like
the only way to find it is to use transactions and commit logic (and maybe
the method I'm finding only works on MySQL and other non-DB2 platforms). Is
there a way other than using transactions and commit logic?

While the program that I am writing is RPG and I considered posting this to
that forum, I'm asking this in the technical forum because I assume other
high level languages have the same problem (like windows programs using ODBC
connections).

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