DROP PROCEDURE IF EXISTS PRO_ALARM;
CREATE PROCEDURE PRO_ALARM()
BEGIN
DECLARE userId VARCHAR(32);
#这个用于处理游标到达最后一行的情况
DECLARE s INT DEFAULT 0;
#声明游标cursor_name（cursor_name是个多行结果集）
DECLARE cursor_data CURSOR FOR
SELECT tmp.USER_ID
FROM (
SELECT
e.USER_ID,
MAX(e.TIME_GMT) TIME_GMT
FROM EVENTS e
GROUP BY e.USER_ID
HAVING MAX(e.TIME_GMT) < UNIX_TIMESTAMP() - 60 * 30
AND MAX(e.TIME_GMT) > UNIX_TIMESTAMP() - 60 * 60 * 24) tmp
INNER JOIN EVENTS t ON tmp.USER_ID = t.USER_ID
AND tmp.TIME_GMT = t.TIME_GMT
WHERE TYPE_ID != '34001';
#设置一个终止标记
DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET s = 1;
OPEN cursor_data;
#获取游标当前指针的记录，读取一行数据并传给变量a,b
FETCH cursor_data
INTO userId;
#开始循环，判断是否游标已经到达了最后作为循环条件
WHILE s <> 1 DO
INSERT INTO EVENTS_NOTIFICATION VALUES (NULL, SYSDATE(), UNIX_TIMESTAMP(SYSDATE()),
UNIX_TIMESTAMP(SYSDATE()), '00000', userId, '1', '0');
#读取下一行的数据
FETCH cursor_data
INTO userId;
END WHILE;
#关闭游标
CLOSE cursor_data;
END;
