What Kind of Relationship is Between These Tables?(这些表之间是什么关系?)

How to create a Foreign Key with quot;ON UPDATE CASCADEquot; on Oracle?(如何使用“ON UPDATE CASCADE创建外键在甲骨文上?)

SQL DROP TABLE foreign key constraint(SQL DROP TABLE 外键约束)

Foreign key not working in MySQL: Why can I INSERT a value that#39;s not in the foreign column?(外键在 MySQL 中不起作用:为什么我可以插入一个不在外列中的值?)

MySQL: How to determine foreign key relationships programmatically?(MySQL:如何以编程方式确定外键关系?)

Can you automatically create a mysqldump file that doesn#39;t enforce foreign key constraints?(你能自动创建一个不强制外键约束的 mysqldump 文件吗?)

Disabling foreign key constraint, still can#39;t truncate table? (SQL Server 2005)(禁用外键约束，还是不能截断表?(SQL Server 2005))

How to create foreign key that is also a primary key in MySQL?(如何在MySQL中创建也是主键的外键?)

Oracle get foreign keys(oracle获取外键)

The ALTER TABLE statement conflicted with the FOREIGN KEY constraint(ALTER TABLE 语句与 FOREIGN KEY 约束冲突)

MySQL quot;ERROR 1005 (HY000): Can#39;t create table #39;foo.#sql-12c_4#39; (errno: 150)quot;(MySQL“ERROR 1005 (HY000): Cant create table foo.#sql-12c_4 (errno: 150))

MySQL errorno 121(MySQL 错误号 121)

quot;General error: 1005 Can#39;t create tablequot; Using Laravel Schema Build and Foreign Keys(“一般错误:1005 无法创建表使用 Laravel Schema 构建和外键)

Basics of Foreign Keys in MySQL?(MySQL中外键的基础知识?)

How can I find which tables reference a given table in Oracle SQL Developer?(如何在 Oracle SQL Developer 中找到引用给定表的表?)

Does Foreign Key improve query performance?(外键会提高查询性能吗?)

Oracle (ORA-02270) : no matching unique or primary key for this column-list error(Oracle (ORA-02270) : 此列列表错误没有匹配的唯一键或主键)

Force InnoDB to recheck foreign keys on a table/tables?(强制 InnoDB 重新检查表上的外键?)

MS SQL quot;ON DELETE CASCADEquot; multiple foreign keys pointing to the same table?(MS SQL“删除级联多个外键指向同一张表?)

Show constraints on tables command(显示表命令的约束)