It is standard SQL that in LIKE
expressions:
%
matches any sequence of characters, including an empty one. It is equivalent to.*
in a regular expression._
matches a single character. It is equivalent to.
in a regular expression.-
You can choose a character for escaping
%
,_
and itself itself with:... WHERE expr LIKE 'a_b%c\\d\%\_' ESCAPE '\'
This will match
a×b×××c\d%_
ora×bc\d%_
but notabc\d%_
nora×b×××cd%_
.
Additionnally with SQLite you have the GLOB
keyword which behaves exactly the same way, except that %
becomes *
and _
becomes ?
.