語法錯誤，而在SQL

Question

創建一個表我想這個查詢，儘管多次嘗試，我仍然得到一個語法錯誤，當我創建表調用。其他表獲得創建就好了。我不明白爲什麼

規範學生

CREATE TABLE Student (
     `student_id` int NOT NULL AUTO_INCREMENT, 
     `phone_number` varchar(50) NOT NULL, 
     `name` varchar(50) NOT NULL, 
     `school` varchar(50) NOT NULL, 
     `class` varchar(50) NOT NULL, 

     PRIMARY KEY (`student_id`) 
    ) 

表故事

CREATE TABLE Stories (
     `story_id` int NOT NULL AUTO_INCREMENT, 
     `story_name` varchar(50) NOT NULL, 
     `number_questions` int NOT NULL, 
     `file_name` varchar(100) NOT NULL, 

     PRIMARY KEY (`story_id`) 
    ) 

表問題

CREATE TABLE Questions (
     `question_id` int NOT NULL, 
     `story_id` int NOT NULL, 
     `file_name` varchar(100) NOT NULL, 
     `concept_tested` varchar(100) NOT NULL, 
     `difficuly` varchar(50) NOT NULL, 
     `number_options` int NOT NULL, 
     `correct_answer` int NOT NULL, 
     `call_number` int NOT NULL, 

     PRIMARY KEY (`question_id`,`story_id`), 

     FOREIGN KEY (`story_id`) 
     REFERENCES `Stories`(`story_id`) 
     ON DELETE CASCADE 
    ) 

表調用

CREATE TABLE Call (
     `call_id` int NOT NULL AUTO_INCREMENT, 
     `student_id` int NOT NULL, 
     `story_id` int NOT NULL, 
     `question_id` int NOT NULL, 
     `call_number` int NOT NULL, 
     `total_number` int NOT NULL, 

     PRIMARY KEY (`call_id`), 

     FOREIGN KEY (`student_id`) 
     REFERENCES `Student`(`story_id`) 
     ON DELETE CASCADE, 

     FOREIGN KEY (`story_id`) 
     REFERENCES `Stories`(`student_id`) 
     ON DELETE CASCADE, 

     FOREIGN KEY (`question_id`) 
     REFERENCES `Stories`(`question_id`) 
     ON DELETE CASCADE 
    ) 

這是我的錯誤：

#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 'Call (`call_id` int NOT NULL AUTO_INCREMENT, `student_id` int NOT NULL, ' at line 1 

我試圖編輯我的代碼，並檢查了好幾次，但問題仍然沒有解決

我解決了這個問題，

是：

CREATE TABLE `Call` (
    `call_id` int NOT NULL AUTO_INCREMENT, 
    `student_id` int NOT NULL, 
    `story_id` int NOT NULL, 
    `question_id` int NOT NULL, 
    `call_number` int NOT NULL, 
    `total_number` int NOT NULL, 

    PRIMARY KEY (`call_id`), 

    FOREIGN KEY (`student_id`) 
    REFERENCES `Student`(`student_id`) 
    ON DELETE CASCADE, 

    FOREIGN KEY (`story_id`) 
    REFERENCES `Stories`(`story_id`) 
    ON DELETE CASCADE, 

    FOREIGN KEY (`question_id`) 
    REFERENCES `Questions`(`question_id`) 
    ON DELETE CASCADE 
) 

Answer 1

我發現，這些條件必須滿足不了錯誤150：

1. 兩個表必須是ENGINE = InnoDB的。 （也可以是其它：ENGINE = MyISAM的作品太）
2. 這兩個表必須具有相同的字符集。
3. 的PK柱（一個或多個）父表和FK列（多個）必須是相同的數據類型。
4. 父表和FK列中的PK列（如果它們具有定義歸類類型）必須具有相同的歸類類型;
5. 如果外鍵表中已有數據，則FK列值必須與父表PK列中的值匹配。
6. 而子表不能作爲臨時表。

希望這有助於。

嘗試這樣

CREATE TABLE Questions (
    `call_id` int NOT NULL AUTO_INCREMENT, 
    `student_id` int NOT NULL, 
    `story_id` int NOT NULL, 
    `question_id` int NOT NULL, 
    `call_number` int NOT NULL, 
    `total_number` int NOT NULL, 

    PRIMARY KEY (`call_id`), 

    FOREIGN KEY (`student_id`) 
    REFERENCES `Student`(`story_id`) 
    ON DELETE CASCADE, 

    FOREIGN KEY (`story_id`) 
    REFERENCES `Stories`(`student_id`) 
    ON DELETE CASCADE, 

    FOREIGN KEY (`question_id`) 
    REFERENCES `Stories`(`question_id`) 
    ON DELETE CASCADE 
)ENGINE=MYISAM CHARACTER SET UTF8; 

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