Loop with label : LOOP « Procedure Function « SQL / MySQL

1. SQL / MySQL
2. Procedure Function
3. LOOP

Loop with label

     

CREATE   TABLE PENALTIES
        (PAYMENTNO      INTEGER      NOT NULL,
         EmployeeNO       INTEGER      NOT NULL,
         PAYMENT_DATE   DATE         NOT NULL,
         AMOUNT         DECIMAL(7,2) NOT NULL,
         PRIMARY KEY    (PAYMENTNO)          );
         
INSERT INTO PENALTIES VALUES (1,  6, '1980-12-08',100);
INSERT INTO PENALTIES VALUES (2, 44, '1981-05-05', 75);
INSERT INTO PENALTIES VALUES (3, 27, '1983-09-10',100);
INSERT INTO PENALTIES VALUES (4,104, '1984-12-08', 50);
INSERT INTO PENALTIES VALUES (5, 44, '1980-12-08', 25);
INSERT INTO PENALTIES VALUES (6,  8, '1980-12-08', 25);
INSERT INTO PENALTIES VALUES (7, 44, '1982-12-30', 30);
INSERT INTO PENALTIES VALUES (8, 27, '1984-11-12', 75);

DELIMITER $$

CREATE PROCEDURE WAIT(IN WAIT_SECONDS INTEGER)
BEGIN
   DECLARE END_TIME INTEGER
      DEFAULT NOW() + INTERVAL WAIT_SECONDS SECOND;
   WAIT_LOOP: LOOP
      IF NOW() > END_TIME THEN
         LEAVE WAIT_LOOP;
      END IF;
   END LOOP WAIT_LOOP;
END$$

DELIMITER ;

CALL WAIT ((SELECT COUNT(*) FROM PENALTIES));

drop table penalties;

   
    
    
    
    
  

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