Re: any way for a transaction to "see" inserts done earlier in the transaction?

I'm presuming the OP is using the typical model of:
conn = getConnection()
id = doInsert(conn)
rst = doSelect(conn, id)
doSomething(rst)
conn.commit()
conn.relrease()


Robert DiFalco wrote
> Two common cases I can think of:
>
> 1. The PERL framework is only caching the insert and does not actually
> perform it until commit is issued.

Wouldn't the same mechanism cache the corresponding SELECT?


> 2. You really are not on the same transaction even though it appears you
> are and the transaction isolation is such that you cannot see the insert
> until it is fully committed.

Doubtful given the way most programs are coded (see assumption above) - the
SELECT should be able to see the prior statement results whether committed
or not.

The only thing I can think of on this line-of-though is that auto-commit is
off and while the original INSERT succeeded the transaction it was in was
not "COMMIT"ed and the connection used closed/returned-to-pool with an
implicit ROLLBACK.  Thus when the subsequent SELECT occurred the INSERT
never appeared to happen.

Not knowing the whether the ID is visible post-program-completion limits the
ability to diagnose, though.

David J.




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