资讯

dbta12 年

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.
dbta8 年

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 ...