SELECT s.id, s.name, s.class_id, c.name class_name, s.gender, s.score
FROM students s
FULL OUTER JOIN classes c
ON s.class_id = c.id;
1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FULL OUTER JOIN classes c
ON s.class_id = c.id' at line 49
时间: 0.001s
田瑞泽2
SELECT s.id, s.name, s.class_id, c.name class_name, s.gender, s.score FROM students s FULL OUTER JOIN classes c ON s.class_id = c.id;
MySQL不支持全外连接，所以只能采取关键字UNION来联合左、右连接的方法 “这是其他地方看到的..”