【foreign-keys】

2015年05月03 - I have a controlled vocabulary table set up as such: 我有一个受控制的词汇表,如下所示: There are only two values ass

2013年04月03 - I m building a web app that tracks what library books a person checks out. I have the following mode

2010年08月17 - I got a polymorphic relationship like the following example: 我得到了一个多态关系,如下例所示: Class B amp C contini

2013年11月25 - In my Java App I want to get information that is stored in my Oracle Database, using JPA. In my Data

2010年12月28 - I would like to get the details of all indexes, keys, and foreign keys from a database in SQL Server

2009年06月17 - Let s say I have books which can be romance, fiction, or mystery. I have realistic options to store

2009年01月14 - Nearly identical to Query a Table s Foreign Key relationships, but for SQL Server 与查询表的外键关系几乎完全相同，但对

2015年09月15 - i have a database which is used by a magento site. The problem is that the database does not have an

2009年05月24 - If I have two tables Logins and Users, as follows: 如果我有两个表登录和用户，如下: Each login has a user and each

2017年01月27 - I have two models, and , that relate to each other with a relationship: 我有两个模型，LaserSheet和Item，它们之间有

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