無法使用兩個外鍵sqlite3創建聯接表

Question

嘗試使用兩個外鍵創建聯接表后，出現以下錯誤。

Error: near "user_id": syntax error

這是我用於創建聯接表的代碼：

 sqlite> CREATE TABLE reviews ( ...> id INTEGER PRIMARY KEY, ...> stars INT, ...> comment TEXT, ...> business_id INT, ...> FOREIGN KEY (business_id) REFERENCES businesses(id), ...> user_id INT, ...> FOREIGN KEY (user_id) REFERENCES users(id) ...> ); 

以下是其他表格：

 CREATE TABLE users ( ...> id INTEGER PRIMARY KEY, ...> first_name TEXT, ...> last_name TEXT ...> ); CREATE TABLE businesses( ...> id INTEGER PRIMARY KEY, ...> name VARCHAR(250) ...> ); 

Answer 1

約束應放在所有列定義之后：

CREATE TABLE reviews (
    id INTEGER PRIMARY KEY,
    stars INT,
    comment TEXT,
    business_id INT,
    user_id INT,
    FOREIGN KEY (business_id) REFERENCES businesses(id),
    FOREIGN KEY (user_id) REFERENCES users(id)
);

這是一個SQL Fiddle。