我有數據庫,可以對電影和演員進行評分。我需要選擇電影和所有這些演員的標題。我創建一個查詢:電影的SELECT標題以及此電影的所有演員
SELECT movies.title, CONCAT_WS(' ', actors.name, actors.surname) as Actor FROM movies LEFT JOIN movies_actors
ON movies.id = movies_actors.movie_id
LEFT JOIN actors
ON actors.id = movies_actors.actor_id
而我得到的東西:
+------------------------------+--------------+
| title | actor |
+------------------------------+--------------+
| Sin City: A Dame to Kill For | Eva Green |
| Sin City: A Dame to Kill For | Bruce Willis |
+------------------------------+--------------+
但我想要得到的東西:我嘗試使用
SELECT DISTINCT movies.title...
+------------------------------+--------------+
| title | actor |
+------------------------------+--------------+
| Sin City: A Dame to Kill For | Eva Green |
| | Bruce Willis |
+------------------------------+--------------+
但它沒有幫助。
你能幫我嗎?謝謝! 這是我的數據庫
CREATE TABLE movies (
id int NOT NULL PRIMARY KEY AUTO_INCREMENT,
title VARCHAR(255),
director VARCHAR(255),
created DATE,
budget DECIMAL(12,2),
box_office DECIMAL(13,2),
duration TIME
)
CREATE TABLE actors (
id INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
surname VARCHAR(255),
name VARCHAR(255),
birthday DATE
)
ALTER TABLE movies_actors
ADD FOREIGN KEY (movie_id) REFERENCES movies (id)
ALTER TABLE movies_actors
ADD FOREIGN KEY FOREIGN KEY (actor_id) REFERENCES actors (id)
INSERT INTO 'movies'
(`id`, `title`, `director`, `created`, `budget`, `box_office`, `duration`)
VALUES
(1, 'Sin City: A Dame to Kill For', 'Frank Miller, Robert Anthony Rodriguez', '2014', 62000000.00, 38000000.00, '01:42:00')
INSERT INTO `actors`
(`id`, `surname`, `name`, `birthday`)
VALUES
(1, 'Green', 'Eva', '1980-07-06'),
(2, 'Willis', 'Bruce', '1955-03-19')