Performance Profiling

Total processing time: 71 ms; Peak memory: 7.144 MB. Show Profiling Timeline

总计9条数据。

Time	Duration	Category	Info

11:36:20.041	2.2 ms	yii\db\Connection::open	Opening DB connection: mysql:host=mysql-teach;dbname=teach_exam
11:36:20.048	1.9 ms	yii\db\Command::query	SELECT * FROM `paper` WHERE `id`='22'
11:36:20.061	1.5 ms	yii\db\Command::query	SELECT * FROM `paper_question` WHERE (`question_type`='select') AND (`paper_id`='22') ORDER BY `sort`
11:36:20.052	1.1 ms	yii\db\Command::query	SHOW FULL COLUMNS FROM `paper`
11:36:20.054	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' AND `kcu`.`TABLE_NAME` = 'paper'
11:36:20.062	0.7 ms	yii\db\Command::query	SELECT * FROM `paper_question` WHERE (`question_type`='multiselect') AND (`paper_id`='22') ORDER BY `sort`
11:36:20.063	0.7 ms	yii\db\Command::query	SELECT * FROM `paper_question` WHERE (`question_type`='fill') AND (`paper_id`='22') ORDER BY `sort`
11:36:20.064	0.7 ms	yii\db\Command::query	SELECT * FROM `paper_question` WHERE (`question_type`='judge') AND (`paper_id`='22') ORDER BY `sort`
11:36:20.065	0.7 ms	yii\db\Command::query	SELECT * FROM `paper_question` WHERE (`question_type`='text') AND (`paper_id`='22') ORDER BY `sort`