I would like to subtract one column of data from another, namely
gppy; both are stored in a MySQL database.
Here is my code but it seems there is something wrong. I've searched anywhere but I cannot find the right answer.
My script below
INSERT INTO denmrk (EMPID, NAME, DATE_FR, DATE_TO, Tangkay, Alis, gppy, gdded , NET_PAY, SSS_comboE, IBG_EMPLYE, PROCESSED_DATE) VALUES (6666, 'JUAN DELACRUZ', '2014-02-01 00:00:00', '2014-02-01 00:00:00', 'BBBB CO', 'DRIVER', 3383.04, 300, gppy- gdded , 150, 150, GETDATE() );
With the given code and implied database structure, how can I can achieve this?