Performance Profiling

Total processing time: 72 ms; Peak memory: 7.267 MB. Show Profiling Timeline

总计10条数据。

Time	Duration	Category	Info

03:44:41.172	3.8 ms	yii\db\Command::query	SELECT * FROM `classify` WHERE `id`=0
03:44:41.145	2.8 ms	yii\db\Connection::open	Opening DB connection: mysql:host=mysql-teach;dbname=teach_exam
03:44:41.152	2.0 ms	yii\db\Command::query	SELECT * FROM `paper_course_chapter_relation` WHERE (`is_deleted`=1) AND (`course_id`='183')
03:44:41.170	1.6 ms	yii\db\Command::query	SELECT * FROM `paper_question` WHERE `paper_id`='28' ORDER BY `sort`
03:44:41.160	1.2 ms	yii\db\Command::query	SELECT COUNT(*) FROM `paper` WHERE `id`=28
03:44:41.163	1.0 ms	yii\db\Command::query	SHOW FULL COLUMNS FROM `paper`
03:44:41.157	0.9 ms	yii\db\Command::query	SELECT `kcu`.`CONSTRAINT_NAME` AS `constraint_name`, `kcu`.`COLUMN_NAME` AS `column_name`, `kcu`.`REFERENCED_TABLE_NAME` AS `referenced_table_name`, `kcu`.`REFERENCED_COLUMN_NAME` AS `referenced_column_name` FROM `information_schema`.`REFERENTIAL_CONSTRAINTS` AS `rc` JOIN `information_schema`.`KEY_COLUMN_USAGE` AS `kcu` ON ( `kcu`.`CONSTRAINT_CATALOG` = `rc`.`CONSTRAINT_CATALOG` OR (`kcu`.`CONSTRAINT_CATALOG` IS NULL AND `rc`.`CONSTRAINT_CATALOG` IS NULL) ) AND `kcu`.`CONSTRAINT_SCHEMA` = `rc`.`CONSTRAINT_SCHEMA` AND `kcu`.`CONSTRAINT_NAME` = `rc`.`CONSTRAINT_NAME` WHERE `rc`.`CONSTRAINT_SCHEMA` = database() AND `kcu`.`TABLE_SCHEMA` = database() AND `rc`.`TABLE_NAME` = 'paper_course_chapter_relation' AND `kcu`.`TABLE_NAME` = 'paper_course_chapter_relation'
03:44:41.155	0.8 ms	yii\db\Command::query	SHOW FULL COLUMNS FROM `paper_course_chapter_relation`
03:44:41.164	0.7 ms	yii\db\Command::query	SELECT `kcu`.`CONSTRAINT_NAME` AS `constraint_name`, `kcu`.`COLUMN_NAME` AS `column_name`, `kcu`.`REFERENCED_TABLE_NAME` AS `referenced_table_name`, `kcu`.`REFERENCED_COLUMN_NAME` AS `referenced_column_name` FROM `information_schema`.`REFERENTIAL_CONSTRAINTS` AS `rc` JOIN `information_schema`.`KEY_COLUMN_USAGE` AS `kcu` ON ( `kcu`.`CONSTRAINT_CATALOG` = `rc`.`CONSTRAINT_CATALOG` OR (`kcu`.`CONSTRAINT_CATALOG` IS NULL AND `rc`.`CONSTRAINT_CATALOG` IS NULL) ) AND `kcu`.`CONSTRAINT_SCHEMA` = `rc`.`CONSTRAINT_SCHEMA` AND `kcu`.`CONSTRAINT_NAME` = `rc`.`CONSTRAINT_NAME` WHERE `rc`.`CONSTRAINT_SCHEMA` = database() AND `kcu`.`TABLE_SCHEMA` = database() AND `rc`.`TABLE_NAME` = 'paper' AND `kcu`.`TABLE_NAME` = 'paper'
03:44:41.161	0.4 ms	yii\db\Command::query	SELECT * FROM `paper` WHERE `id`=28 ORDER BY `updated_at` DESC LIMIT 10