N：在代码

Question

中号关联语法错误我有这样的SQL（MySQL的）：

create table apartmentcaretakers 
(
apartmentID int, 
caretakerID int, 
PRIMARY KEY (apartmentID, caretakerID), 
FOREIGN KEY (apartmentID) REFERENCES apartments(apartmentID), 
FOREIGN KEY (caretakerID) REFERENCES caretakers(caretakerID) 
)engine = innodb; 

的错误，我的猫：近“引用公寓（apartmentID），外键caretakerID引用看护人 SQL语法错误'

这是我的一些小错误，但是有人能指出吗？

编辑：一些编码和重新运行后，错误是1064.我可以理解为什么它没有真正帮助，因为它是一个广泛的错误。

Answer 1

为我工作。

确保您的引用表也使用INNODB引擎。使用以下查询来检查：SHOW TABLE STATUS WHERE Name = 'xxx'

mysql> CREATE TABLE apartments (
    -> apartmentID int PRIMARY KEY NOT NULL) ENGINE = innodb; 
Query OK, 0 rows affected (0.01 sec) 

mysql> CREATE TABLE caretakers (
    -> caretakerID int PRIMARY KEY NOT NULL) ENGINE = innodb; 
Query OK, 0 rows affected (0.02 sec) 

mysql> CREATE TABLE apartmentcaretakers (
    -> apartmentID int, 
    -> caretakerID int, 
    -> PRIMARY KEY (apartmentID, caretakerID), 
    -> FOREIGN KEY ac_fk_apartments_id (apartmentID) REFERENCES apartments (apartmentID), 
    -> FOREIGN KEY ac_fk_caretakers_id(caretakerID) REFERENCES caretakers (caretakerID) 
    ->) ENGINE = innodb; 

Query OK, 0 rows affected (0.02 sec)