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 ...

There are two basic types of integrity constraints: general constraints and referential constraints. The following list shows the specific types of integrity restraints that you can apply through SCL.

Say we have two types of tools: hammers and wrenches. We have a list of work orders, and we want to track what tool was used for the hammering and what was used for the wrenching. The problem is that ...

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 ...

When designing a system an architect must conform to all three corners of the CIA (Confidentiality, Integrity and Accessibility) triangle. System requirements for data confidentiality are driven not ...