DECLARE @REQ_ID VARCHAR(15)
SET @REQ_ID=(SELECT REQ_ID FROM TR_REQUEST_DOC WHERE REQ_CODE ='PUR/2021/001407')
UPDATE TR_REQUEST_DOC_DT SET TOTAL_AMT = PRICE * QUANTITY WHERE REQ_DOC_ID=@REQ_ID
UPDATE TR_REQUEST_DOC SET TOTAL_AMT =37950000 WHERE REQ_ID =@REQ_ID