dbta

MySQL Cluster 7.3 Introduces Foreign Key Support

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.
dbta

There Ain’t No Such Thing as a Partial Foreign Key

A foreign key is a relationship between two entities. Generally speaking, inter-entity relationships are one-to-many, e.g., an ORDER has many ORDER LINEs, and so forth. Even a case that may start out ...
Ars Technica

Recursively delete items in a MySQL table - foreign key, or something else?

I'm working on a web app, and it part of it, there is a very simple database-driven file/document manager. As a file manager, there is the possibility of sub-folders. So in the DB, I have the ...
Princeton University

E-commerce Database Design - Part II

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 ...