DECODE( )

This MySQL function decrypts a given string that was encrypted with a given password. See also the ENCODE( ) function.

Syntax

Below is the syntax for this command. Text within square brackets (i.e, [ and ] ) are optional. Choices are separated by bars (i.e, | ). Ellipses preceded by a comma indicates a repeating pattern. Ellipses before or after syntax are used to highlight a relevant except from the larger syntax. Text displayed in italic letters represent text that should be replaced with the specific names related to the database (e.g., column with the name of the column).

DECODE(encrypted, password)

Explanation

This function decrypts a given string that was encrypted with a given password. See the ENCODE( ) function.

Examples

SELECT ENCODE(pwd, 'oreilly')
FROM teachers
WHERE teacher_id = '730522';

This function decrypts the contents of the pwd column and unlocks it using the oreilly password, which was used to encrypt it originally using ENCODE( ).