How can i solv this problem. If im write this in SQL it seems to be like this:
select `product`.`short_name` from product, card_tk where product.`schet` = `card_tk`.`product_cod` and `card_tk`.`kod` = 2;
it for examlpe...im need to see in "selector" fild `product`.`short_name`, and connection finds most be on product.`schet` = `card_tk`.`product_cod`. In result of opiratin programm most update a table `card_tk`->`product_cod`
I'm realy dont know how to do this....