When I am working with an Oracle database, I still find myself using SQL*Plus for many quick and dirty database queries. In particular, I often look up constraints in SQL*Plus. In this post, I look at ...

Referential integrity helps manage data by enforcing validation between related entities. This enforcement follows logical semantics behind the database design -- i.e., an employee can only work for ...

Ensuring the integrity of the organization’s databases is a key component of the DBA’s job. A database is of little use if the data it contains is inaccurate or if it cannot be accessed due to ...