Business can often be described as a series of projects, and projects are often dictated by a set of constraints. While projects vary, constraints on them typically fall into one of three categories.

Databases contain integrity constraints to prevent chaotic events from happening, such as shipping a product to a customer with no address. Each company has integrity constraints unique to its ...

Garin Hess is the author of “Selling is Hard. Buying is Harder.” and the founder of Consensus, the leader in demo automation software. We often approach B2B sales selfishly: “How do we close more ...

Cascading referential integrity constraints are foreign key constraints that tell SQL Server to perform certain actions when a primary key field in a primary key-foreign key relationship is updated or ...

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 ...