How efficient is the LIKE keyword when used to locate records in database ?

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How efficient is the LIKE keyword when used to locate records in database as compared to the using '=' in a where clause.

Put differently, how well the LIKE keyword be used to locate record as compared with the '=' symbol?

Posted 16-Dec-14 21:30pm

Gbenbam

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Shweta N Mishra · Answer 1 · 2014-12-16T21:42:00

LIKE is good to used only against static values. It should be avoided to used against a database.

and "=" operator is more efficient than LIKE in terms of performance.

The only advantage you get with LIKE is to search the matching values with wildcards "%","_",".*" etc , which you can not do with "=".

use-or-like-to-compare-strings-in-sql[^]

sql-like-vs-performance[^]

/\jmot · Answer 2 · 2014-12-16T21:39:00

Solution 1

see...
http://stackoverflow.com/questions/6142235/sql-like-vs-performance[^]
http://myitforum.com/cs2/blogs/jnelson/archive/2007/11/16/108354.aspx[^]
http://use-the-index-luke.com/sql/where-clause/searching-for-ranges/like-performance-tuning[^]

Posted 16-Dec-14 21:39pm

/\jmot