An Oracle DB programmer reviewed a query that I wrote and told me that
putting constants at the beginning of the query would make it slower. I
thought I'd go to the experts on MySQL and be told the truth one way of
the other.
Example query:
SELECT
TABLE1.COL,
TABLE2.COL
FROM
TABLE1,
TABLE2
WHERE
TABLE1.COL='CONSTANT'
AND
TABLE1.COL=TABLE2.COL
[ OR ]
SELECT
TABLE1.COL,
TABLE2.COL
FROM
TABLE1,
TABLE2
WHERE
TABLE1.COL=TABLE2.COL
AND
TABLE1.COL='CONSTANT'
I know that indexes are important and such, the above is just an example
to give some visual.
Thanks for any help you can offer.
Rob.
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