AES_ENCRYPT()
AES_ENCRYPT(string,password)
This function encrypts a given string using the AES algorithm
with a 128-bit key length. It locks the encrypted string with the
password given as the second argument. The function returns NULL if
one of the given parameters is NULL. It’s available as of version
4.0.2 of MySQL. The results of this function can be reversed with
AES_DECRYPT(). Here is an example:
UPDATE teachers
SET personal = AES_ENCRYPT('text', 'my_password')
WHERE teacher_id = '730522';