Mysql存儲過程中游標的用法實例

本文實例講述了Mysql存儲過程中游標的用法。分享給大家供大家參考。具體如下：

1. 批量插入商戶路由關聯數據：

DELIMITER $$
USE `mmm_mac`$$
DROP PROCEDURE IF EXISTS `批量插入商戶路由關聯數據`$$
CREATE DEFINER=`root`@`%` PROCEDURE `批量插入商戶路由關聯數據`()
BEGIN
  DECLARE v_partner_no VARCHAR(32);
 DECLARE v_partner_id INT(11);
 DECLARE v_sc_pid INT(11);
  DECLARE v_mac_no VARCHAR(32);
 DECLARE v_mac_addr VARCHAR(32);
  DECLARE n_mac_no BIGINT;
  DECLARE n_mac_addr BIGINT;
  DECLARE n_mac_addr_str VARCHAR(32);
  DECLARE done INT;
  #取得商戶數據
  DECLARE cur_partnerlist CURSOR
  FOR
  SELECT comp_id, partner_no, sc_pid FROM mmm_partner.anl_partner; 
  SET n_mac_no = 100000000;
 SET n_mac_addr = 1000000000;
  OPEN cur_partnerlist;
  REPEAT
    FETCH cur_partnerlist INTO v_partner_id,v_partner_no,v_sc_pid;
    SET v_mac_no = CONCAT('MAC',v_sc_pid,n_mac_no);
    SET n_mac_addr_str = CONCAT(SUBSTR(n_mac_addr,1,2),':',SUBSTR(n_mac_addr,3,2),':',SUBSTR(n_mac_addr,5,2),':',SUBSTR(n_mac_addr,7,2),':',SUBSTR(n_mac_addr,9,2));
    SET v_mac_addr = CONCAT('CC:',n_mac_addr_str);
    SET n_mac_no = n_mac_no + 1;
    SET n_mac_addr = n_mac_addr + 1;
    #向t_machine_sc_config表中插入商戶關聯路由的數據
    #insert into t_machine_sc_config(mac_no, partner_no, partner_id, sc_pid, mac_addr, comp_id, is_lock) values('MAC2016000000001','44060430603381',1,4403,'C8:87:18:AB:79:66',1,1);
    INSERT INTO t_machine_sc_config(mac_no, partner_no, partner_id, sc_pid, mac_addr, comp_id, is_lock) VALUES(v_mac_no,v_partner_no,v_partner_id,v_sc_pid,v_mac_addr,1,1);
  UNTIL 0 END REPEAT;
  CLOSE cur_partnerlist;
END$$
DELIMITER ;

2. 更新商戶表：

DELIMITER $$
USE `mmm_partner`$$
DROP PROCEDURE IF EXISTS `更新商戶表`$$
CREATE DEFINER=`root`@`%` PROCEDURE `更新商戶表`()
BEGIN
  DECLARE v_partner_no VARCHAR(32);
  DECLARE vpartner_no VARCHAR(32);
  DECLARE v_partner_id VARCHAR(32);
  DECLARE n BIGINT;
  DECLARE partnerid_list CURSOR
  FOR
  SELECT comp_id FROM 100msh_partner.anl_partner WHERE TRIM(partner_no) = ''; 
  SET vpartner_no = '2015415parno';
  SET n = 10000000;
  OPEN partnerid_list;
  REPEAT
    FETCH partnerid_list INTO v_partner_id;
    SET v_partner_no = CONCAT(vpartner_no,n);
    SET n = n + 1;
    UPDATE mmm_partner.anl_partner SET partner_no = v_partner_no WHERE comp_id = v_partner_id;
  UNTIL 0 END REPEAT;
  CLOSE partnerid_list;
  END$$
DELIMITER ;

希望本文所述對大家的mysql數據庫程序設計有所幫助。