SELECT *
FROM A_TABLE at
WHERE
at.VALUE1 = 'Y' AND
NOT EXISTS (
SELECT 1
FROM B_TABLE bt
WHERE bt.VALUE2 = 'X');
The query PLAN would tell you for certain, but I would expect the answer to
be:
half of A_TABLE rows times all of B_TABLE rows.
If there's an index on
PLAN (B_TABLE NATURAL)
PLAN (AT INDEX (IDX_A_TABLE))
Does this mean that for every single row selected from table A, it
touches every single row from table B?
-Original Message-
From: firebird-support@yahoogroups.com
[mailto:firebird-support@yahoogroups.com] On Behalf Of Leyne, Sean
Whether Firebird takes advantage of this fact
That was my hope, but I don't think that's happening.
-Original Message-
From: firebird-support@yahoogroups.com
[mailto:firebird-support@yahoogroups.com] On Behalf Of Tomasz Tyrakowski
Sent: Tuesday, April 03, 2012 3:31 AM
To:
I don't know if Tom told you but your suggestion to see the real error code
led my programmer to release a
new version THAT WORKKED!!..I can not thank you enough.
-Original Message-
From: Leyne, Sean s...@broadviewsoftware.com
To: firebird-support
I was wondering if there was any way to determine if there is a pending
transaction outstanding. I have a single connection to a database and have
something like the following code:
FbConnection conn;
FBCommand cmd = conn.CreateCommand();;
cmd.Transaction = conn.BeginTransaction();
I then
Hi,
I have an application which executes a stored procedure in Firebird 1.5.6 on a
fairly regular basis (multiple times per day).
Immediately following a backup/restore of the database, the procedure runs
fairly quickly (less than a second or two) at any time of day.
Gradually, over time
