When you need to remove a row from a table, use the DELETE command. Its syntax is similar to the SELECT command and allows you to narrow down the exact row or rows to delete using qualifiers such as WHERE and LIMIT.
DELETE FROM classics WHERE title='Little Dorrit';
This example issues a DELETE command for all rows whose title column contains the string ‘Little Dorrit’.
The WHERE keyword is very powerful, and important to enter correctly; an error could lead a command to the wrong rows (or have no effect in cases where nothing matches the WHERE clause). So now we’ll spend some time on that clause, which is the heart and soul of SQL.