资讯
Here are the details to two versions of Product Tables, one for Access 2000/97 and one for SQL Server 7. Not all of these fields are necessary in one database. For example, with Size and color you can ...
To link databases together to create a relational database, a foreign key is used. A foreign key is a field in one table that is linked to the primary key in another table.
Oracle announced the general availability of MySQL Cluster 7.3, which adds foreign key support, a new NoSQL JavaScript Connector for node.js, and an auto-installer to make setting up clusters easier.
For everyone normalizing their designs, just remember: There ain't no such thing as a partial foreign key. When a project pretends that partial foreign keys are a valid concept, the end result is a ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果