On Jul 15, 2009, at 7:37 AM, Bastien Koert wrote:
On Wed, Jul 15, 2009 at 9:21 AM,
Reading docs.. I want to be sure of things... have your
verification of my
Does setting a mysql db column (say "myPrimarykeyID") with the
& 'auto_increment' flags totally negate the logic for ever having
to use ON
DUPLICATE KEY UPDATE in an INSERT?
Or is it that I can do an INSERT with SET
myPrimarykeyID=someAlreadyExistingVal, a=1, b=2.... ON DUPLICATE
a=edited1, b=edited2 ...
I am trying to learn/work out the mysql/php code that will allow me
either create *or* edit a record, in one fell swoop.
Thanks for any insight!
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If that is the goal use the REPLACE INTO sql syntax
You really don't want to allow duplicates in primary keys, that
completely negates the usefulness of that key
well isn't it that in order for the REPLACE INTO to replace the old
row I have to try and replace a row with an already existing
uniqueID? The same thing I would do to cause the INSERT.. SET .. ON
DUPLICATE KEY UPDATE to kick in? Don't both methods equally
effectively 'prevent duplicate primary keys from occurring'?