Amazon Web Services has introduced Aurora DSQL, a serverless distributed SQL database engineered to deliver high availability ...

A primary key is a field used to uniquely identify every record in the database. Sometime primary ... of staff in the teacher table is Staff ID. A foreign key is a primary key from one table ...

Databases support date logic ... a function or other processing could be defined that verifies a value’s existence. Retaining an infinitude of Foreign Keys may cause future performance bottlenecks as ...

A foreign key is a relationship between two entities ... Gathering history very often means that each object within the database design may have columns like a “Start Date” and an “End Date” ...