SELECT invnumber, amount, paid, fxamount, fxpaid FROM ap WHERE amount=paid AND fxamount <> 
   fxpaid AND fxpaid <> 0 OR fxpaid is NULL;
   
   UPDATE ap SET fxamount = (SELECT SUM(0-amount) FROM acc_trans WHERE
   chart_id IN (SELECT id FROM chart WHERE link LIKE '%AP_amount%' OR
   link LIKE '%IC_expense%' OR link LIKE '%tax%') AND trans_id=ap.id and
   NOT fx_transaction);
   
   UPDATE ap SET fxpaid = paid WHERE fxpaid is NULL;
   
   UPDATE ar SET fxpaid = paid WHERE fxpaid is NULL;
   
   UPDATE ap SET fxamount = fxpaid WHERE amount = paid;
   
   UPDATE ar SET fxamount = fxpaid WHERE amount = paid;   
   
 Ignore below  
   
   
   UPDATE ap SET fxamount = amount WHERE fxamount = 0;
   UPDATE ap SET fxpaid = paid WHERE fxpaid = 0;
   
   UPDATE ap SET fxpaid = (SELECT SUM(amount) FROM acc_trans WHERE
   chart_id IN (SELECT id FROM chart WHERE link LIKE '%_paid%') AND
   trans_id=ap.id AND NOT fx_transaction);

   UPDATE ap SET fxamount=round(fxamount), fxpaid=ROUND(fxpaid);
   
   UPDATE ap SET fxamount = fxpaid WHERE amount = paid;