Question

在有少量数据的情况下，查询工作正常，但是在海量数据中，查询无法正常工作，并显示错误消息“＃2013-查询期间与MySQL服务器的连接丢失”。

我正在开发需要从数据库中连接许多表的软件。该查询在有少量数据的同时工作正常，现在我在此阶段拥有大量数据。Query无法正常工作。在没有限制的数据较少的情况下，查询工作正常，但是我尝试使用限制的数据太多，但没有用。我增加了执行量，查询运行了大约119秒。我想要更快的结果，因为增加服务器的执行时间不是可取的。

查询如下。

SELECT
    `TA`.`id` AS `taid`,
    `T`.`id` AS `trip_id`,
    `TA`.`id` AS `adv_id`,
    `VO`.`id` AS `VO_id`,
    `P`.`id` AS `p_id`,
    `V`.`id` AS `v_id`,
    `J`.`id` AS `job_id`,
    `T`.`lr_date` AS `date`,
    `T`.`lr_no`,
    `J`.`movement_nature`,
    `J`.`material`,
    `J`.`job_no`,
    `V`.`vehicle_code`,
    `T`.`container1`,
    `T`.`container2`,
    `T`.`cont_size`,
    `T`.`from_id`,
    `T`.`total_freight`,
    `J`.`freight`,
    SUM(TA.amount) AS amount,
    SUM(TA.card) AS card,
    SUM(TA.add_card) AS add_card,
    `TA`.`rate` AS `rate`,
    SUM(TA.add_amount) AS add_amount,
    SUM(TA.party_advance) AS party_advance,
    SUM(TA.total_qty) AS fuel_amt,
    `VO`.`voucher_no`,
    `P`.`name` AS `party`,
    `O`.`name` AS `owner`,
    `R`.`frm`,
    `R`.`too`,
    `T`.`user` AS `trip_user`,
    `TA`.`user` AS `trip_adv_user`,
    `VO`.`user` AS `v_user`,
    `J`.`bill_no`,
    `D`.`name` AS `driver_name`,
    `TA`.`adv_type` AS `adv_type`,
    `TA`.`repair`,
    `T`.`status`,
    `J`.`job_nature`,
    `T`.`pc_packages`
FROM
    `job` `J`
LEFT JOIN `trip_log` `T` ON
    `T`.`job_id` = `J`.`id`
LEFT JOIN `trip_advance` `TA` ON
    `TA`.`trip_id` = `T`.`id`
LEFT JOIN `voucher` `VO` ON
    `VO`.`trip_adv_id` = `TA`.`id`
LEFT JOIN `vehicle` `V` ON
    `V`.`id` = `T`.`vehicle_id`
LEFT JOIN `parties` `P` ON
    `P`.`id` = `T`.`party`
LEFT JOIN `parties` `O` ON
    `O`.`id` = `V`.`owner_code`
LEFT JOIN `route` `R` ON
    `R`.`id` = `T`.`from_id`
LEFT JOIN `driver` `D` ON
    `D`.`id` = `T`.`driver_id`
WHERE
    `T`.`lr_date` >= "2019-04-15" AND `T`.`lr_date` <= "2019-04-30"
GROUP BY
    `T`.`id` limit 10;

我希望得到更快的结果而不增加执行时间。

限制不起作用，查询期间失去与MySQL服务器的连接

0 个答案: