存储过程在后台执行？

Question

如何在不创建加载网站以等待过程结果完成的情况下后台运行mysql存储过程？

DELIMITER $$

USE `simbakda_sensus`$$

DROP PROCEDURE IF EXISTS `info`$$

CREATE DEFINER=`potutu`@`%` PROCEDURE `info`(unit VARCHAR(20))
BEGIN   
    DELETE FROM info WHERE kd_unit=unit;
    INSERT INTO info
    SELECT unit,'a' AS kib ,SUM(a) AS a_sen,SUM(b) AS a_tot,(SUM(b)-SUM(a)) AS a_non FROM (
    SELECT unit,COUNT(*) AS a,'0' AS b FROM trkib_a WHERE kd_unit=unit AND STATUS='1'
    UNION ALL
    SELECT unit,'0' AS a, COUNT(*) AS b FROM trkib_a WHERE kd_unit=unit
    )a
    UNION ALL
    SELECT unit,'b' AS kib ,SUM(a) AS a_sen,SUM(b) AS a_tot,(SUM(b)-SUM(a)) AS a_non FROM (
    SELECT unit,COUNT(*) AS a,'0' AS b FROM trkib_b WHERE kd_unit=unit AND STATUS='1'
    UNION ALL
    SELECT unit,'0' AS a, COUNT(*) AS b FROM trkib_b WHERE kd_unit=unit
    )b
    UNION ALL
    SELECT unit,'c' AS kib ,SUM(a) AS a_sen,SUM(b) AS a_tot,(SUM(b)-SUM(a)) AS a_non FROM (
    SELECT unit,COUNT(*) AS a,'0' AS b FROM trkib_c WHERE kd_unit=unit AND STATUS='1'
    UNION ALL
    SELECT unit,'0' AS a, COUNT(*) AS b FROM trkib_c WHERE kd_unit=unit
    )c
    UNION ALL
    SELECT unit,'d' AS kib ,SUM(a) AS a_sen,SUM(b) AS a_tot,(SUM(b)-SUM(a)) AS a_non FROM (
    SELECT unit,COUNT(*) AS a,'0' AS b FROM trkib_d WHERE kd_unit=unit AND STATUS='1'
    UNION ALL
    SELECT unit,'0' AS a, COUNT(*) AS b FROM trkib_d WHERE kd_unit=unit
    )d
    UNION ALL
    SELECT unit,'e' AS kib ,SUM(a) AS a_sen,SUM(b) AS a_tot,(SUM(b)-SUM(a)) AS a_non FROM (
    SELECT unit,COUNT(*) AS a,'0' AS b FROM trkib_e WHERE kd_unit=unit AND STATUS='1'
    UNION ALL
    SELECT unit,'0' AS a, COUNT(*) AS b FROM trkib_e WHERE kd_unit=unit
    )e
    UNION ALL
    SELECT unit,'f' AS kib ,SUM(a) AS a_sen,SUM(b) AS a_tot,(SUM(b)-SUM(a)) AS a_non FROM (
    SELECT unit,COUNT(*) AS a,'0' AS b FROM trkib_f WHERE kd_unit=unit AND STATUS='1'
    UNION ALL
    SELECT unit,'0' AS a, COUNT(*) AS b FROM trkib_f WHERE kd_unit=unit
    )f;
END$$

DELIMITER ;

Answer 1

您有几个不错的选择。

如果您需要定期运行此程序（例如每小时或每个星期日的03:00或其他时间），请使用MySQL Event 。 （请注意，每月5美元的共享托管服务中的某些服务不允许在其MySQL服务器上使用事件。）

启用事件调度程序：

SET GLOBAL event_scheduler = ON;

然后创建事件对象。 它会存在于您的MySQL数据库中，并按照您指定的时间表运行。

CREATE EVENT myevent_01
ON SCHEDULE EVERY 1 HOUR
STARTS CURRENT_TIMESTAMP
DO CALL simbakda_sensus.info;

另一个选择是一次性活动。 同样的交易，但它运行一次就消失了。 每次要运行过程时，都必须重新创建事件。 这是过程的纯“后台”执行。

CREATE EVENT run_info_now
ON SCHEDULE AT CURRENT_TIMESTAMP
DO CALL simbakda_sensus.info;

第三种方式：

创建一个小的php页面来运行您的过程。 然后将iframe放入您的主网页，并从中调用小页面。 您可以使小页面显示“信息已完成！” 或sp结束运行时显示的其他消息。

第四种方式。

一些linux / FreeBSD / Unix服务器允许用户设置定期计划的事件，称为cron作业。 大话题：在这里阅读。 如何使用PHP创建cron作业？

提示 ：创建一个日志表。 使每个数据维护过程在运行时在表中插入一行，以显示当前时间和有关该过程的其他信息。 我向您保证，如果您的系统被大量使用，您将不时查看此日志以确保一切正常运行。