Hi,
I have a question about using LIKE or equal.
I mean, comparing two strings with exact coincidence, without case sensitive, which is better? Or are they the same? Do they work equal?
For Instance.
"abc"="abc"
Or
"abc" LIKE "abc"
I use Mysql 4.0.12.
Thanks in advanced.
Eli
Functionally, the two expressions are the same. In terms of efficiency, the "=" operator's probably somewhat better than LIKE. You can try checking this for yourself as follows:
mysql> select benchmark(10000000,'abc' LIKE 'abc'); +--------------------------------------+ | benchmark(10000000,'abc' LIKE 'abc') | +--------------------------------------+ | 0 | +--------------------------------------+ 1 row in set (2.60 sec)
mysql> select benchmark(10000000,'abc' = 'abc'); +-----------------------------------+ | benchmark(10000000,'abc' = 'abc') | +-----------------------------------+ | 0 | +-----------------------------------+ 1 row in set (2.09 sec)
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