Show all grants

A stored procedure to show all grants in the database.

USE mysql;

DELIMITER //
CREATE PROCEDURE showAllGrants() BEGIN
    DECLARE done INT DEFAULT 0;
    DECLARE theUser CHAR(16);
    DECLARE theHost CHAR(60);
    DECLARE cur1 CURSOR FOR SELECT user, host FROM mysql.user;
    DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET done = 1;
    OPEN cur1;

    REPEAT
        FETCH cur1 INTO theUser, theHost;
        IF NOT done THEN
            SET @sql := CONCAT('SHOW GRANTS FOR ', QUOTE(theUser), '@', QUOTE(theHost));
            PREPARE grantStatement FROM @sql;
            EXECUTE grantStatement;
            DROP PREPARE grantStatement;
        END IF;
    UNTIL done END REPEAT;

    CLOSE cur1;
END//
DELIMITER ;

CALL showAllGrants();