存储过程和函数

DROP PROCEDURE PROC_Z4;

CREATE PROCEDURE proc_z4()
BEGIN
    DECLARE card CHAR(20);    
    DECLARE count INT;
    SELECT count(*) INTO count FROM Z4;    
    BEGIN
        DECLARE cur CURSOR FOR SELECT card FROM Z4;
        OPEN cur;
        WHILE count>0 do    
            FETCH cur INTO card;
            IF card=‘100‘ then
                INSERT INTO z3(card) VALUES(card);
            END IF;
            SET count=count-1;    
        END WHILE;
        CLOSE cur;
    END;    
END;

DROP FUNCTION FUN_WJF;
CREATE FUNCTION fun_wjf(c CHAR(20))
RETURNs CHAR(20)
LANGUAGE SQL
BEGIN ATOMIC
    RETURN rtrim(c)||‘a‘;
END

CREATE FUNCTION fun_wjf(c CHAR(20))
RETURNs CHAR(20)
LANGUAGE SQL
BEGIN ATOMIC
    RETURN rtrim(c)||‘a‘;
END

SELECT fun_wjf(CARD), TRCD, AMOUNT FROM z3;