MySQL5.7createVIEWorFUNCTIONorPROCEDURE

1.视图

a.

CREATE
ALGORITHM = UNDEFINED
DEFINER = `root`@`localhost`
SQL SECURITY INVOKER
VIEW `sakila`.`actor_info` AS
SELECT
`a`.`actor_id` AS `actor_id`,
`a`.`first_name` AS `first_name`,
`a`.`last_name` AS `last_name`,
GROUP_CONCAT(DISTINCT CONCAT(`c`.`name`,
': ',
(SELECT
GROUP_CONCAT(`f`.`title`
ORDER BY `f`.`title` ASC
SEPARATOR ', ')
FROM
((`sakila`.`film` `f`
JOIN `sakila`.`film_category` `fc` ON ((`f`.`film_id` = `fc`.`film_id`)))
JOIN `sakila`.`film_actor` `fa` ON ((`f`.`film_id` = `fa`.`film_id`)))
WHERE
((`fc`.`category_id` = `c`.`category_id`)
AND (`fa`.`actor_id` = `a`.`actor_id`))))
ORDER BY `c`.`name` ASC
SEPARATOR '; ') AS `film_info`
FROM
(((`sakila`.`actor` `a`
LEFT JOIN `sakila`.`film_actor` `fa` ON ((`a`.`actor_id` = `fa`.`actor_id`)))
LEFT JOIN `sakila`.`film_category` `fc` ON ((`fa`.`film_id` = `fc`.`film_id`)))
LEFT JOIN `sakila`.`category` `c` ON ((`fc`.`category_id` = `c`.`category_id`)))
GROUP BY `a`.`actor_id` , `a`.`first_name` , `a`.`last_name` 

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