Optimization of MySQL search using "like" and wildcards -

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how can queries like

select * sometable somefield '%value%'

be optimized?

the main issue here first wildcard prevents dbms using index.

edit: more, somefield value solid string (not piece of text) fulltext search not performed.

two ways:

(1) use in-memory table goes fast.

(2) cook better index , search algorithm foo '%bar%'. it's not possible make suggestions without knowing more problem.

as have pointed out, %bar% pattern guarantees table-scan every lookup, nullifies possible search ingenuity in database software.


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