You can specify the character to be used to escape wildcard characters (% and _, for example) in LIKE clauses.
The escape sequence for escape characters is:
{escape 'escape-character'}
where:
escape-character
is the character used to escape the wildcard character.
For example, the following SQL statement specifies that an asterisk (*) be used as the escape character in the LIKE clause for the wildcard character %:
SELECT col1 FROM table1 WHERE col1 LIKE '*%%' {escape '*'}