Mysql存储过程中游标的用法实例-原创手记-慕课网

本文实例讲述了Mysql存储过程中游标的用法。分享给大家供大家参考。具体如下：

1. 批量插入商户路由关联数据：

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

2. 更新商户表：

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

希望本文所述对大家的mysql数据库程序设计有所帮助。