Hi Ivan,

Just to clarify. All CRUD operations inside SP are executed in the same transaction?

What if I have:

SELECT
ID
FROM SOME_TABLE WHERE .... INTO :CUSTOMER_ID

IF (:CUSTOMER_ID IS NULL) THEN
BEGIN
INSERT INTO SOME_TABLE(...) VALUES(...);
END


How do I ensure that no other process inserts the data into SOME_TABLE between SELECT & IF statements?

In my case, it is very critical that INSERT only happens if SELECT found no records...

Thanks,
Vlad

----- Original Message ----
From: Ivan Prenosil <Ivan.Prenosil@...>
To: firebird-support@yahoogroups.com
Sent: Monday, January 15, 2007 6:15:11 AM
Subject: Re: [firebird-support] Transactions in SPs(Firebird 2.0 embedded)

> I have multiple DELETEs, UPDATEs in some of my SPs. For example

>

> CREATE PROCEDURE DO_STUFF

> AS

> BEGIN

>

> DELETE FROM USERS WHERE ....

>

> DELETE FROM ROLES WHERE...

>

> UPDATE LOG WHERE ...

>

> END

>

> Are all these statements run in the same transaction when I can the SP?

Yes. You can't execute parts of single statement (sp) in several transactions.



Ivan












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