mysql存储过程用法实例分析

DELIMITER //
CREATE PROCEDURE proc (IN num INT)
BEGIN
SELECT * FROM v9_qd_account limit num;
END //
DELIMITER ;

SET @p_in=5;
CALL proc(@p_in);

CALL proc(5);

DECLARE num int default 5;
SET num = 1;
SET num = num + 1;

DELIMITER //
CREATE PROCEDURE proc(IN sname VARCHAR(20),IN pwd VARCHAR(5),IN qd INT,IN start INT,IN end INT)
  begin
  DECLARE var INT;
  DECLARE myname VARCHAR(30);
  SET var=start;
  while var<end do
    SET myname = CONCAT(sname,LPAD(var,3,'0'));
    insert into v9_qd_account (storename,password,qudao,regdate) value(myname,md5(pwd),qd,UNIX_TIMESTAMP());
    SET var=var+1;
  end while;
  end //
DELIMITER ;

CALL proc('test','123456',1,1,21);

SHOW PROCEDURE STATUS LIKE 'C%' \G; 查看以字母C开头的存储过程
SHOW CREATE PROCEDURE proc \G; 查看状态和创建语句
information_schema.Routines 中查看

DROP PROCEDURE IF EXISTS proc;
DROP FUNCTION mytest;

CREATE PROCEDURE useInfo(IN u_name VARCHAR(50) character set gbk,OUT u_age INT) ......