That’s a great question for the databases forum, but I have no problem answering it here. The LIKE keyword is used to filter data based on matching a column’s value to a pattern. You can get really complex with regular expressions, but it’s easy to use in simple cases.
For example:
SELECT * FROM Table WHERE StudentGrade LIKE '%Fr%'
Which database are you using?
Like is described here MySQL Docs for more on LIKE using MySQL 5.0.