關於「foreign-key constraint」標籤，搜尋引擎有相關的訊息討論：

SQL FOREIGN KEY Constraint - W3Schoolswww.w3schools.com › sql › sql_foreignkeymysql - cannot add foreign key constraint when creating a tablestackoverflow.com › questions › mysql-cannot-add-foreig...Primary and Foreign Key Constraints - SQL Server - Microsoft Learnlearn.microso