Help with a bad query

[J Kahn]

I've created a database called signs with a table called data in it, and I'm trying to update rows. I've run the following statements both from a php file and inside phpmyadmin itself, and both come up with the same result: No errors are displayed but the records don't change.

From the file,

$query="UPDATE data SET status='$status' AND history='$history' WHERE jobnum='$jobnum'";
mysql_query($query);

or in php my admin,

UPDATE data SET status='2' AND history='edited' WHERE jobnum='5'

I can't understand why the statment is wrong, can anyone help?