Glad I could help.
A couple of notes to add to this, the % wildcard will substitute any number of characters wherever it is placed, while the _ (underscore) wildcard substitutes a single character.
You can also use sets and ranges of characters by enclosing them in brackets ([ ]).
ex: WHERE SSN LIKE '123-45-[0-9][0-9][0-9][0-9]'
gives all variations of SSN beginning with 123-45- and ensuring that the following characters are actually digits.
John