mysql存储过程while遍历游标
DELIMITER $$
CREATE PROCEDURE queryEduTopologyPerformance(IN edu_id VARCHAR(50),OUT ebu_number_total INT ,
OUT upstream_total INT,OUT downstream_total INT,OUT alarm_number_total INT)
BEGIN
-- 定义变量
DECLARE ebuId VARCHAR(50); -- 游标接收变量
DECLARE nowTime DATETIME; -- 当前时间
DECLARE beforeTwoMinuteTime DATETIME; -- 两分钟前的时间教案模板
DECLARE upstreamTemp INT; -- ebu上⾏流量临时变量
DECLARE downstreamTemp INT; -- ebu下⾏流量临时变量
DECLARE alarmTemp INT; -- ebu告警临时变量
DECLARE i INT DEFAULT 0;
-- 遍历数据结束标志
DECLARE done INT DEFAULT FALSE;
DECLARE cur CURSOR FOR SELECT ebu.id FROM cap_ebu ebu,cap_edu edu WHERE ebu.edu_id = edu.id AND edu.id = edu_id;
-- 将结束标志绑定到游标
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
-- 为变量赋值
SET ebu_number_total = 0;
SET upstream_total = 0;
形容可爱的词语SET downstream_total = 0;
SET alarm_number_total = 0;2019年清宫表
SET upstreamTemp = 0;
SET downstreamTemp = 0;
鸡蛋腐竹糖水
SET alarmTemp = 0;
SET nowTime = NOW();
字谜大全一年级SET beforeTwoMinuteTime = DATE_SUB(nowTime, INTERVAL 1 MINUTE);
SELECT COUNT(*) INTO ebu_number_total FROM cap_ebu ebu,cap_edu edu WHERE ebu.edu_id = edu.id AND edu.id = edu_id;
OPEN cur;
loop1: WHILE i<ebu_number_total DO -- 遍历开始
FETCH cur INTO ebuId; -- 获取游标⾥的ebuId值
亚麻色
-- 重置变量值
SET i = i + 1;
假日经济
SET upstreamTemp = 0 ;
SET downstreamTemp = 0;
SET alarmTemp = 0 ;
-- 计算总流量，总告警数
SELECT upstream INTO upstreamTemp FROM ebu_stream_view WHERE TIME >=beforeTwoMinuteTime AND TIME <=nowTime AND id = ebuId ORDER BY SELECT downstream INTO downstreamTemp FROM ebu_stream_view WHERE TIME >=beforeTwoMinuteTime AND TIME <=nowTime AND id = ebuId ORD SET upstream_total = upstream_total + upstreamTemp;
韭菜鸡蛋饺SET downstream_total = downstream_total + downstreamTemp;
SELECT alarmNumber INTO alarmTemp FROM current_alarm WHERE last_update_time >=beforeTwoMinuteTime AND last_update_time <=nowTime AND de SET alarm_number_total = alarm_number_total + alarmTemp;
END WHILE loop1;
CLOSE cur;
END $$
DELIMITER ;
