SHOW FULL COLUMNS FROM `zx_system` [ RunTime:0.000581s ]
SELECT * FROM `zx_system` WHERE `id` = 1 LIMIT 1 [ RunTime:0.000314s ]
SHOW FULL COLUMNS FROM `zx_course` [ RunTime:0.000446s ]
SHOW FULL COLUMNS FROM `zx_cate` [ RunTime:0.000399s ]
SHOW FULL COLUMNS FROM `zx_school` [ RunTime:0.000430s ]
SELECT * FROM `zx_cate` WHERE `status` = 1 AND `pid` = 15 [ RunTime:0.000318s ]
SELECT COUNT(*) AS think_count FROM ( SELECT count(*) AS think_count FROM `zx_course` `a` LEFT JOIN ( SELECT a.id, GROUP_CONCAT(DISTINCT b.title ORDER BY b.id) AS cate_names FROM `zx_course` `a` INNER JOIN `zx_cate` `b` ON FIND_IN_SET(b.id, a.cate_id) LEFT JOIN `zx_school` `c` ON `a`.`school_id`=`c`.`id` GROUP BY `a`.`id` ) `cate_subquery` ON `a`.`id`=`cate_subquery`.`id` LEFT JOIN ( SELECT a.id, GROUP_CONCAT(DISTINCT c.title ORDER BY c.id) AS tag_names FROM `zx_course` `a` INNER JOIN `zx_tag` `c` ON FIND_IN_SET(c.id, a.tag_id) GROUP BY `a`.`id` ) `tag_subquery` ON `a`.`id`=`tag_subquery`.`id` LEFT JOIN `zx_school` `c` ON `a`.`school_id`=`c`.`id` WHERE `cate_subquery`.`id` IN ('17','18','19','20','21','22','23','24','25','26','27','28') AND `cate_subquery`.`id` = '19' AND `a`.`status` = '1' AND `c`.`status` = '1' GROUP BY `a`.`id` ) `_group_count_` LIMIT 1 [ RunTime:0.002669s ]
SELECT `a`.`id`,`a`.`title`,`a`.`create_time`,`a`.`school_id`,c.title as school_title,`cate_subquery`.`cate_names`,`tag_subquery`.`tag_names` FROM `zx_course` `a` LEFT JOIN ( SELECT a.id, GROUP_CONCAT(DISTINCT b.title ORDER BY b.id) AS cate_names FROM `zx_course` `a` INNER JOIN `zx_cate` `b` ON FIND_IN_SET(b.id, a.cate_id) LEFT JOIN `zx_school` `c` ON `a`.`school_id`=`c`.`id` GROUP BY `a`.`id` ) `cate_subquery` ON `a`.`id`=`cate_subquery`.`id` LEFT JOIN ( SELECT a.id, GROUP_CONCAT(DISTINCT c.title ORDER BY c.id) AS tag_names FROM `zx_course` `a` INNER JOIN `zx_tag` `c` ON FIND_IN_SET(c.id, a.tag_id) GROUP BY `a`.`id` ) `tag_subquery` ON `a`.`id`=`tag_subquery`.`id` LEFT JOIN `zx_school` `c` ON `a`.`school_id`=`c`.`id` WHERE `cate_subquery`.`id` IN ('17','18','19','20','21','22','23','24','25','26','27','28') AND `cate_subquery`.`id` = '19' AND `a`.`status` = '1' AND `c`.`status` = '1' GROUP BY `a`.`id` ORDER BY CASE WHEN a.sort = 0 THEN 1 ELSE 0 END,`a`.`sort` ASC,`a`.`create_time` DESC LIMIT 0,30 [ RunTime:0.002627s ]
SELECT * FROM `zx_cate` WHERE `status` = 1 ORDER BY CASE WHEN sort = 0 THEN 1 ELSE 0 END,`sort` ASC,`create_time` DESC [ RunTime:0.000539s ]
SELECT * FROM `zx_school` WHERE `status` = 1 ORDER BY rand() LIMIT 12 [ RunTime:0.000743s ]
SELECT * FROM `zx_school` WHERE `status` = 1 ORDER BY rand() LIMIT 12 [ RunTime:0.000689s ]
SELECT `a`.* FROM `zx_course` `a` LEFT JOIN `zx_school` `b` ON `a`.`school_id`=`b`.`id` WHERE `a`.`status` = '1' AND `b`.`status` = '1' ORDER BY rand() LIMIT 12 [ RunTime:0.001085s ]
SELECT * FROM `zx_cate` WHERE `status` = 1 AND `pid` = 15 [ RunTime:0.000320s ]
SELECT * FROM `zx_cate` WHERE `status` <> -1 AND `id` = 19 LIMIT 1 [ RunTime:0.000246s ]
