Matthew Peter wrote:
same size VARCHAR or INT IX faster? i assume INT. The
reason I ask is I was wondering what (if any) is the
avg delay from one over the other? And benefit of one
over the other? Thanks.
If you want numbers, use INT. If you want text use a VARCHAR.
It's probably difficult to come up with speed comparisons for "the same
size" since varchar will have an overhead for the field-length as well
as the number of characters.
Even then, you'd have to account for client language and application
overheads.
In any case, optimising at this level is unlikely to be a good use of
your time unless you really have reached the practical limits of
available hardware.
--
Richard Huxton
Archonet Ltd
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