求和符号∑的性质与应用

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基本文件流程错误 SQL 调试

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CONNECT:[ UseTime:0.003166s ] mysql:host=127.0.0.1;port=3306;dbname=dimhok;charset=utf8
SHOW FULL COLUMNS FROM `edu_coursetype` [ RunTime:0.002592s ]
SELECT * FROM `edu_coursetype` WHERE ( parent=0 ) ORDER BY `listorder` ASC [ RunTime:0.001141s ]
SELECT * FROM `edu_coursetype` WHERE ( parent='1' ) ORDER BY `listorder` ASC [ RunTime:0.000864s ]
SELECT * FROM `edu_coursetype` WHERE ( parent='2' ) ORDER BY `listorder` ASC [ RunTime:0.000971s ]
SHOW FULL COLUMNS FROM `edu_book` [ RunTime:0.001730s ]
SELECT * FROM `edu_book` WHERE `publish_time` >= 1748497104 [ RunTime:0.000883s ]
SHOW FULL COLUMNS FROM `edu_video_course` [ RunTime:0.001590s ]
SELECT * FROM `edu_video_course` WHERE `addtime` >= 1748497104 [ RunTime:0.001175s ]
SHOW FULL COLUMNS FROM `edu_nav` [ RunTime:0.001238s ]
SELECT * FROM `edu_nav` ORDER BY `sort_order` ASC [ RunTime:0.000958s ]
SHOW FULL COLUMNS FROM `edu_article` [ RunTime:0.001672s ]
UPDATE `edu_article` SET `hits` = `hits` + 1 WHERE `id` = 5 [ RunTime:0.076143s ]
SELECT * FROM `edu_article` WHERE `id` = 5 AND `is_open` = '1' LIMIT 1 [ RunTime:0.001574s ]
SHOW FULL COLUMNS FROM `edu_users` [ RunTime:0.002157s ]
SELECT * FROM `edu_users` WHERE `id` = 2 [ RunTime:0.001279s ]
SHOW FULL COLUMNS FROM `edu_article_theme` [ RunTime:0.001232s ]
SELECT * FROM `edu_article_theme` WHERE `name` = 'fangxiang' [ RunTime:0.001109s ]
SHOW FULL COLUMNS FROM `edu_article_category` [ RunTime:0.002239s ]
SELECT * FROM `edu_article_category` ORDER BY `sort` ASC [ RunTime:0.002051s ]
SHOW FULL COLUMNS FROM `edu_article_likes` [ RunTime:0.001439s ]
SELECT * FROM `edu_article_likes` WHERE `article_id` = 5 AND `uid` = 0 LIMIT 1 [ RunTime:0.001003s ]
SHOW FULL COLUMNS FROM `edu_article_comment` [ RunTime:0.002135s ]
SELECT * FROM `edu_article_comment` WHERE `article_id` = 5 AND `c_status` = 1 ORDER BY `createtime` DESC [ RunTime:0.001964s ]
SELECT SUM(`hits`) AS think_sum FROM `edu_article` WHERE `author` = 2 LIMIT 1 [ RunTime:0.001013s ]
SHOW FULL COLUMNS FROM `edu_article_favourite` [ RunTime:0.000958s ]
SELECT * FROM `edu_article_favourite` WHERE `uid` = 0 AND `article_id` = 5 LIMIT 1 [ RunTime:0.000658s ]
SELECT COUNT(*) AS think_count FROM `edu_article_likes` WHERE `article_id` = 5 LIMIT 1 [ RunTime:0.000676s ]
SELECT * FROM `edu_article` WHERE `columnid` = 1 AND `id` <> 5 AND `is_draft` = 0 AND `is_open` = '1' ORDER BY `is_top` DESC,`id` DESC LIMIT 0,10 [ RunTime:0.001525s ]
SELECT * FROM `edu_users` WHERE `id` = 2 [ RunTime:0.001680s ]
SHOW FULL COLUMNS FROM `edu_article_tags` [ RunTime:0.001537s ]
SELECT `edu_article_category`.*,`pivot`.`id` AS `pivot__id`,`pivot`.`article_id` AS `pivot__article_id`,`pivot`.`tag_id` AS `pivot__tag_id` FROM `edu_article_category` INNER JOIN `edu_article_tags` `pivot` ON `pivot`.`tag_id`=`edu_article_category`.`id` WHERE `pivot`.`article_id` IN ('6','4','3','2') [ RunTime:0.001249s ]
SELECT COUNT(*) AS think_count FROM `edu_article_likes` WHERE `article_id` = 6 LIMIT 1 [ RunTime:0.000770s ]
SELECT COUNT(*) AS think_count FROM `edu_article_comment` WHERE `article_id` = 6 LIMIT 1 [ RunTime:0.000717s ]
SELECT COUNT(*) AS think_count FROM `edu_article_likes` WHERE `article_id` = 4 LIMIT 1 [ RunTime:0.000681s ]
SELECT COUNT(*) AS think_count FROM `edu_article_comment` WHERE `article_id` = 4 LIMIT 1 [ RunTime:0.000528s ]
SELECT COUNT(*) AS think_count FROM `edu_article_likes` WHERE `article_id` = 3 LIMIT 1 [ RunTime:0.000762s ]
SELECT COUNT(*) AS think_count FROM `edu_article_comment` WHERE `article_id` = 3 LIMIT 1 [ RunTime:0.000619s ]
SELECT COUNT(*) AS think_count FROM `edu_article_likes` WHERE `article_id` = 2 LIMIT 1 [ RunTime:0.000644s ]
SELECT COUNT(*) AS think_count FROM `edu_article_comment` WHERE `article_id` = 2 LIMIT 1 [ RunTime:0.000482s ]
SELECT `tag_id` FROM `edu_article_tags` WHERE `article_id` = 5 [ RunTime:0.000590s ]
SELECT * FROM `edu_article_category` WHERE `id` IN (6,4) [ RunTime:0.000605s ]

0.241454s