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“电子课件会员”
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SQL
调试
- 请求信息 : 2022-06-27 14:03:57 HTTP/1.1 GET : http://www.myeln.com.cn/course.html?big_cate=9&cate=0&limit=20
- 运行时间 : 0.752834s [ 吞吐率：1.33req/s ] 内存消耗：4,497.38kb 文件加载：158
- 查询信息 : 6 queries
- 缓存信息 : 1 reads,0 writes
- CONNECT:[ UseTime:0.109658s ] mysql:host=gz-cdb-50yr6xe1.sql.tencentcdb.com;port=61436;dbname=ksb;charset=utf8
- SHOW FULL COLUMNS FROM `dt_category` [ slave|RunTime:0.072229s ]
- SELECT `name` FROM `dt_category` WHERE `id` = 9 LIMIT 1 [ slave|RunTime:0.071909s ]
- SHOW FULL COLUMNS FROM `dt_column` [ slave|RunTime:0.072939s ]
- SELECT `id` FROM `dt_category` WHERE `id` = 9 AND `fid` = 2 AND `memberid` = 0 AND `college_id` = 0 [ slave|RunTime:0.071954s ]
- SELECT COUNT(*) AS think_count FROM ( SELECT count(*) AS think_count FROM `dt_column` `c` INNER JOIN `dt_category_data` `d` ON `d`.`did`=`c`.`id` INNER JOIN `dt_category` `ca` ON `ca`.`id`=`d`.`vid` LEFT JOIN `dt_live` `l` ON `l`.`column_id`=`c`.`id` LEFT JOIN (select count(id) count,sum(duration) live_length,live_id from dt_live_video where deleted = 0 and open_back=1 group by live_id) v ON `l`.`id`=`v`.`live_id` WHERE `d`.`tb` = 'column' AND `ca`.`fid` = '9' AND `c`.`status` = '4' AND `c`.`deleted` = '0' AND `c`.`spread` = '1' AND `c`.`memberid` = '0' AND `c`.`to_coursewave` = '1' AND `l`.`deleted` = '0' AND `l`.`status` = '4' AND `c`.`type` IN ('column','live') AND ( c.type = 'column' or v.count > 0 ) GROUP BY `c`.`id` ) `_group_count_` LIMIT 1 [ slave|RunTime:0.231763s ]
- SELECT * FROM `dt_category` WHERE `deleted` = 0 AND `id` > 2 AND `memberid` = 0 AND `college_id` = 0 [ slave|RunTime:0.072536s ]
0.757663s
