Wykonanie poniższego zapytania zajmuje ponad 11 minut.
SELECT `c`.*,
`e`.`name` AS `employee_name`,
`e`.`emp_no`,
`d`.`code` AS `department_code`,
IF(ew.code IS NOT NULL, ew.code, egw.code) AS shift_code,
IF(ew.code IS NOT NULL, ew.time_in_from, egw.time_in_from) AS time_in_from,
IF(ew.code IS NOT NULL, ew.time_out_to, egw.time_out_to) AS time_out_to,
IF(ew.code IS NOT NULL, ew.next_day, egw.next_day) AS next_day
FROM `tms_emp_badge_card` AS `c`
LEFT JOIN `tms_door_record_raw` AS `dr`
ON `c`.`card_no` = `dr`.`card_no`
LEFT JOIN `tms_employee` AS `e`
ON `c`.`emp_no` = `e`.`emp_no`
LEFT JOIN `tms_emp_group` AS `g`
ON `e`.`group_id` = `g`.`id`
LEFT JOIN `tms_emp_department` AS `d`
ON `e`.`department_id` = `d`.`id`
LEFT JOIN `tms_emp_workschedule` AS `ewt`
ON `ewt`.`workschedule_date` = "2016-11-01"
AND ( ewt.reference_no = c.emp_no
AND ewt.reference_type = "emp_no" )
LEFT JOIN `tms_workschedule` AS `ew`
ON `ewt`.`workschedule_id` = `ew`.`id`
LEFT JOIN `tms_emp_workschedule` AS `egwt`
ON `egwt`.`workschedule_date` = "2016-11-01"
AND ( egwt.reference_no = g.code
AND egwt.reference_type = "group_code" )
LEFT JOIN `tms_workschedule` AS `egw`
ON `egwt`.`workschedule_id` = `egw`.`id`
WHERE `dr`.`record_time` BETWEEN '2016-11-01' AND '2016-11-02'
GROUP BY `c`.`card_no`
ORDER BY c.emp_no Poniżej znajduje się wyjaśnienie zapytania
+----+-------------+-------+------------+--------+-------------------------------------------------------------------------+-----------------------------------------+---------+--------------------------+------+----------+---------------------------------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+-------+------------+--------+-------------------------------------------------------------------------+-----------------------------------------+---------+--------------------------+------+----------+---------------------------------+
| 1 | SIMPLE | c | NULL | ALL | tms_emp_badge_card_card_no_index,emp_card_no | NULL | NULL | NULL | 884 | 100.00 | Using temporary; Using filesort |
| 1 | SIMPLE | e | NULL | eq_ref | tms_employee_emp_no_unique | tms_employee_emp_no_unique | 767 | tms.c.emp_no | 1 | 100.00 | NULL |
| 1 | SIMPLE | g | NULL | eq_ref | PRIMARY | PRIMARY | 4 | tms.e.group_id | 1 | 100.00 | NULL |
| 1 | SIMPLE | d | NULL | eq_ref | PRIMARY | PRIMARY | 4 | tms.e.department_id | 1 | 100.00 | NULL |
| 1 | SIMPLE | dr | NULL | ref | tms_door_record_raw_card_no_index,tms_door_record_raw_record_time_index | tms_door_record_raw_card_no_index | 767 | tms.c.card_no | 276 | 1.27 | Using where |
| 1 | SIMPLE | ewt | NULL | ref | tms_emp_workschedule_reference_no_index,workschedule_date | tms_emp_workschedule_reference_no_index | 767 | tms.c.emp_no | 83 | 100.00 | Using where |
| 1 | SIMPLE | ew | NULL | eq_ref | PRIMARY | PRIMARY | 4 | tms.ewt.workschedule_id | 1 | 100.00 | NULL |
| 1 | SIMPLE | egwt | NULL | ref | tms_emp_workschedule_reference_no_index,workschedule_date | tms_emp_workschedule_reference_no_index | 767 | tms.g.code | 83 | 100.00 | Using where |
| 1 | SIMPLE | egw | NULL | eq_ref | PRIMARY | PRIMARY | 4 | tms.egwt.workschedule_id | 1 | 100.00 | NULL |
+----+-------------+-------+------------+--------+-------------------------------------------------------------------------+-----------------------------------------+---------+--------------------------+------+----------+---------------------------------+Struktura tabeli
CREATE TABLE `tms_emp_badge_card` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`import_id` int(11) DEFAULT NULL,
`emp_no` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`card_no` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`created_at` timestamp NULL DEFAULT NULL,
`updated_at` timestamp NULL DEFAULT NULL,
`deleted_at` timestamp NULL DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `tms_emp_badge_card_import_id_unique` (`import_id`),
KEY `tms_emp_badge_card_emp_no_index` (`emp_no`),
KEY `tms_emp_badge_card_card_no_index` (`card_no`),
KEY `emp_card_no` (`card_no`,`emp_no`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=885 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
CREATE TABLE `tms_door_record_raw` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`import_id` int(11) DEFAULT NULL,
`card_no` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`door_no` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`controller_no` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`record_time` datetime NOT NULL,
`record_state` int(11) NOT NULL,
`open_type` int(11) NOT NULL,
`pass_flag` int(11) NOT NULL,
`hand_value` int(11) NOT NULL,
`lfeet_value` int(11) NOT NULL,
`rfeet_value` int(11) NOT NULL,
`created_at` timestamp NULL DEFAULT NULL,
`updated_at` timestamp NULL DEFAULT NULL,
`deleted_at` timestamp NULL DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `tms_door_record_raw_import_id_unique` (`import_id`),
KEY `tms_door_record_raw_card_no_index` (`card_no`),
KEY `tms_door_record_raw_door_no_index` (`door_no`),
KEY `tms_door_record_raw_controller_no_index` (`controller_no`),
KEY `tms_door_record_raw_record_time_index` (`record_time`)
) ENGINE=InnoDB AUTO_INCREMENT=368713 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
CREATE TABLE `tms_employee` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`import_id` int(11) DEFAULT NULL,
`emp_no` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`name` varchar(255) COLLATE utf8_unicode_ci DEFAULT NULL,
`email` varchar(255) COLLATE utf8_unicode_ci DEFAULT NULL,
`plant_id` int(10) unsigned DEFAULT NULL,
`department_id` int(10) unsigned DEFAULT NULL,
`group_id` int(10) unsigned DEFAULT NULL,
`attendance_group_id` int(11) NOT NULL,
`created_at` timestamp NULL DEFAULT NULL,
`updated_at` timestamp NULL DEFAULT NULL,
`deleted_at` timestamp NULL DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `tms_employee_emp_no_unique` (`emp_no`),
UNIQUE KEY `tms_employee_import_id_unique` (`import_id`),
KEY `tms_employee_plant_id_foreign` (`plant_id`),
KEY `tms_employee_department_id_foreign` (`department_id`),
KEY `tms_employee_group_id_foreign` (`group_id`),
CONSTRAINT `tms_employee_department_id_foreign` FOREIGN KEY (`department_id`) REFERENCES `tms_emp_department` (`id`) ON DELETE CASCADE,
CONSTRAINT `tms_employee_group_id_foreign` FOREIGN KEY (`group_id`) REFERENCES `tms_emp_group` (`id`) ON DELETE CASCADE,
CONSTRAINT `tms_employee_plant_id_foreign` FOREIGN KEY (`plant_id`) REFERENCES `tms_emp_plant` (`id`) ON DELETE CASCADE
) ENGINE=InnoDB AUTO_INCREMENT=865 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
p_no`,
`d (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`import_id` int(11) DEFAULT NULL,
`code` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`description` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`created_at` timestamp NULL DEFAULT NULL,
`updated_at` timestamp NULL DEFAULT NULL,
`deleted_at` timestamp NULL DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `tms_emp_group_import_id_unique` (`import_id`),
KEY `tms_emp_group_code_index` (`code`)
) ENGINE=InnoDB AUTO_INCREMENT=48 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
CREATE TABLE `tms_emp_department` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`import_id` int(11) DEFAULT NULL,
`code` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`description` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`created_at` timestamp NULL DEFAULT NULL,
`updated_at` timestamp NULL DEFAULT NULL,
`deleted_at` timestamp NULL DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `tms_emp_department_import_id_unique` (`import_id`),
KEY `tms_emp_department_code_index` (`code`)
) ENGINE=InnoDB AUTO_INCREMENT=82 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
CREATE TABLE `tms_emp_workschedule` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`import_id` int(11) DEFAULT NULL,
`reference_type` enum('emp_no','plant_code','department_code','group_code') COLLATE utf8_unicode_ci NOT NULL,
`reference_no` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`workschedule_id` int(10) unsigned NOT NULL,
`workschedule_date` date NOT NULL,
`created_at` timestamp NULL DEFAULT NULL,
`updated_at` timestamp NULL DEFAULT NULL,
`deleted_at` timestamp NULL DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `tms_emp_workschedule_import_id_unique` (`import_id`),
KEY `tms_emp_workschedule_reference_no_index` (`reference_no`),
KEY `tms_emp_workschedule_workschedule_id_foreign` (`workschedule_id`),
KEY `workschedule_date` (`workschedule_date`),
CONSTRAINT `tms_emp_workschedule_workschedule_id_foreign` FOREIGN KEY (`workschedule_id`) REFERENCES `tms_workschedule` (`id`) ON DELETE CASCADE
) ENGINE=InnoDB AUTO_INCREMENT=27597 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
CREATE TABLE `tms_workschedule` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`import_id` int(11) DEFAULT NULL,
`code` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`description` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`time_in` time NOT NULL,
`time_in_from` time NOT NULL,
`time_in_to` time NOT NULL,
`time_out` time NOT NULL,
`time_out_from` time NOT NULL,
`time_out_to` time NOT NULL,
`next_day` tinyint(1) NOT NULL,
`created_at` timestamp NULL DEFAULT NULL,
`updated_at` timestamp NULL DEFAULT NULL,
`deleted_at` timestamp NULL DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `tms_workschedule_import_id_unique` (`import_id`),
KEY `tms_workschedule_code_index` (`code`)
) ENGINE=InnoDB AUTO_INCREMENT=45 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ciZastanawiam się, czy jest to „Korzystanie tymczasowe; Korzystanie z problemu z plikami”, czy powinienem utworzyć indeks wielokolumnowy, ale nie wiem, jak to naprawić. Proszę doradź.
Aktualizacja 1:
Po dodaniu indeksu wielokolumnowego do tabeli tms_door_record_raw (KEY card_no_record_time(card_no ,record_time )) Wykonanie sql spadło z 11 minut do 3,2 sekundy
Ponownie uruchom wyjaśnienie sql. Klucz tabeli łączenia dla drzmienił się z (card_no) na (card_no, record_time) również w dodatkowej kolumnie, którą pokazujeUsing where; Using index
+----+-------------+-------+------------+--------+---------------------------------------------------------------------------------------------+-----------------------------------------+---------+--------------------------+------+----------+---------------------------------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+-------+------------+--------+---------------------------------------------------------------------------------------------+-----------------------------------------+---------+--------------------------+------+----------+---------------------------------+
| 1 | SIMPLE | c | NULL | ALL | tms_emp_badge_card_card_no_index,emp_card_no | NULL | NULL | NULL | 884 | 100.00 | Using temporary; Using filesort |
| 1 | SIMPLE | e | NULL | eq_ref | tms_employee_emp_no_unique | tms_employee_emp_no_unique | 767 | tms.c.emp_no | 1 | 100.00 | NULL |
| 1 | SIMPLE | g | NULL | eq_ref | PRIMARY | PRIMARY | 4 | tms.e.group_id | 1 | 100.00 | NULL |
| 1 | SIMPLE | d | NULL | eq_ref | PRIMARY | PRIMARY | 4 | tms.e.department_id | 1 | 100.00 | NULL |
| *1 | SIMPLE | dr | NULL | ref | tms_door_record_raw_card_no_index,tms_door_record_raw_record_time_index,record_time_card_no | record_time_card_no | 767 | tms.c.card_no | 266 | 1.27 | Using where; Using index |
| 1 | SIMPLE | ewt | NULL | ref | tms_emp_workschedule_reference_no_index,workschedule_date | tms_emp_workschedule_reference_no_index | 767 | tms.c.emp_no | 83 | 100.00 | Using where |
| 1 | SIMPLE | ew | NULL | eq_ref | PRIMARY | PRIMARY | 4 | tms.ewt.workschedule_id | 1 | 100.00 | NULL |
| 1 | SIMPLE | egwt | NULL | ref | tms_emp_workschedule_reference_no_index,workschedule_date | tms_emp_workschedule_reference_no_index | 767 | tms.g.code | 83 | 100.00 | Using where |
| 1 | SIMPLE | egw | NULL | eq_ref | PRIMARY | PRIMARY | 4 | tms.egwt.workschedule_id | 1 | 100.00 | NULL |
+----+-------------+-------+------------+--------+---------------------------------------------------------------------------------------------+-----------------------------------------+---------+--------------------------+------+----------+---------------------------------+Aktualizacja 2:
Usuń drdołączenie sql i zastąp przez gdzie istnieją warunki sugerowane przez @mendosi zmień czas wykonania na 0,60 sekundy.
SELECT `c`.*,
`e`.`name` AS `employee_name`,
`e`.`emp_no`,
`d`.`code` AS `department_code`,
IF(ew.code IS NOT NULL, ew.code, egw.code) AS shift_code,
IF(ew.code IS NOT NULL, ew.time_in_from, egw.time_in_from) AS time_in_from,
IF(ew.code IS NOT NULL, ew.time_out_to, egw.time_out_to) AS time_out_to,
IF(ew.code IS NOT NULL, ew.next_day, egw.next_day) AS next_day
FROM `tms_emp_badge_card` AS `c`
LEFT JOIN `tms_employee` AS `e`
ON `c`.`emp_no` = `e`.`emp_no`
LEFT JOIN `tms_emp_group` AS `g`
ON `e`.`group_id` = `g`.`id`
LEFT JOIN `tms_emp_department` AS `d`
ON `e`.`department_id` = `d`.`id`
LEFT JOIN `tms_emp_workschedule` AS `ewt`
ON `ewt`.`workschedule_date` = "2016-11-01"
AND ( ewt.reference_no = c.emp_no
AND ewt.reference_type = "emp_no" )
LEFT JOIN `tms_workschedule` AS `ew`
ON `ewt`.`workschedule_id` = `ew`.`id`
LEFT JOIN `tms_emp_workschedule` AS `egwt`
ON `egwt`.`workschedule_date` = "2016-11-01"
AND ( egwt.reference_no = g.code
AND egwt.reference_type = "group_code" )
LEFT JOIN `tms_workschedule` AS `egw`
ON `egwt`.`workschedule_id` = `egw`.`id`
WHERE EXISTS (SELECT 1 FROM tms_door_record_raw As dr WHERE c.card_no = dr.card_no AND dr.record_time BETWEEN '2016-11-01' AND '2016-11-02')
ORDER BY c.emp_no;Poniżej znajduje się wyjaśnienie sql
+----+--------------------+-------+------------+--------+---------------------------------------------------------------------------------------------+-----------------------------------------+---------+--------------------------+------+----------+--------------------------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+--------------------+-------+------------+--------+---------------------------------------------------------------------------------------------+-----------------------------------------+---------+--------------------------+------+----------+--------------------------+
| 1 | PRIMARY | c | NULL | ALL | NULL | NULL | NULL | NULL | 884 | 100.00 | Using where |
| 1 | PRIMARY | e | NULL | eq_ref | tms_employee_emp_no_unique | tms_employee_emp_no_unique | 767 | tms.c.emp_no | 1 | 100.00 | NULL |
| 1 | PRIMARY | g | NULL | eq_ref | PRIMARY | PRIMARY | 4 | tms.e.group_id | 1 | 100.00 | NULL |
| 1 | PRIMARY | d | NULL | eq_ref | PRIMARY | PRIMARY | 4 | tms.e.department_id | 1 | 100.00 | NULL |
| 1 | PRIMARY | ewt | NULL | ref | tms_emp_workschedule_reference_no_index,workschedule_date | tms_emp_workschedule_reference_no_index | 767 | tms.c.emp_no | 83 | 100.00 | Using where |
| 1 | PRIMARY | ew | NULL | eq_ref | PRIMARY | PRIMARY | 4 | tms.ewt.workschedule_id | 1 | 100.00 | NULL |
| 1 | PRIMARY | egwt | NULL | ref | tms_emp_workschedule_reference_no_index,workschedule_date | tms_emp_workschedule_reference_no_index | 767 | tms.g.code | 83 | 100.00 | Using where |
| 1 | PRIMARY | egw | NULL | eq_ref | PRIMARY | PRIMARY | 4 | tms.egwt.workschedule_id | 1 | 100.00 | NULL |
| 2 | DEPENDENT SUBQUERY | dr | NULL | ref | tms_door_record_raw_card_no_index,tms_door_record_raw_record_time_index,record_time_card_no | record_time_card_no | 767 | tms.c.card_no | 266 | 1.27 | Using where; Using index |
+----+--------------------+-------+------------+--------+---------------------------------------------------------------------------------------------+-----------------------------------------+---------+--------------------------+------+----------+--------------------------+
LEFT JOIN:skonieczne lub niektóre z nich można zastąpićINNER JOIN:sOdpowiedzi:
Czas wykonania powinien pomóc:
ORDER BYjeśli nie jest to absolutnie koniecznedrtabeli naWHERE EXISTS (SELECT 1 FROM tms_door_record_raw As dr WHERE c.card_no = dr.card_no AND dr.record_time BETWEEN '2016-11-01' AND '2016-11-02')GROUP BY, może teraz nie być potrzebnytms_door_record_rawaby uwzględnić zarównocard_noirecord_timeSprawdź to i sprawdź, czy poczyniono postępy. Konieczne mogą być dalsze kroki, ale mam nadzieję, że jest to właściwy kierunek.
źródło
Usuń GROUP BY.
Jeśli masz (logicznie poprawne) duplikaty, usuń je na wczesnym etapie.
źródło
tms_door_record_rawtabela ma wiele rekordów z jedną kartą nr. na przykład, karta 0001 ma kilka rekordów wejścia / wyjścia w ciągu 1 dnia, więc pokaże wiele rekordów, gdzie potrzebuję tylko, jeśli karta ma rekord w tym dniu.