I am learning Delphi programming language to use mySQL databases ya, but I'm having problems when trying to create a program with the following detail : and program flow that I want to like this, for example in the table we can see khan parameters have a disease named 'Colomnaris' with symptoms: 1. Loss of appetite 2. Infection occurs on the scalp, back of the body skin, gills, fins and other parts when compared with disease 'Penducle' with symptoms: 1. Loss of appetite 2. Infection occurs on the scalp, back of the body skin, gills, fins and other parts so if we look at the parameters used (symptoms) to determine the result is the same 100%, so I used both as a comparison parameter ie:: bobot The second parameter which has different weights for each - each disease. so the program will automatically (after pressing the button count) issued the results in the form of the disease's name on the label [box] to the right when the two parameters ( gejala & bobot ) are met in accordance with tables I have created in the database. please instructions, I have a headache. thank you sir.