How to escape wildcard characters in “like” clause?

Question

How can I escape the wildcard characters in a like clause?

E.g.:

select foo from Foo as foo where foo.bar like \'%\' || :filter ||\'%\'

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Answer 1

In Hibernate 3 you can use the escape parameter to specify the escape char:

select foo from Foo as foo where foo.bar like '!%' escape '!'

I think that should work, although I have never tried it in practice.