Description: Using constraints is preferred to using triggers, rules, and defaults. A constraint enforces the integrity of a database. It defines rules regarding the values allowed in columns of a table. It is the standard mechanism for enforcing integrity.
SQL University.net courses meet the most demanding needs of the business world for advanced education
in a cost-effective manner. SQL University.net courses are available immediately for IT professionals
and can be taken without disruption of your workplace schedule or processes.
Compared to traditional travel-based training, SQL University.net saves time and valuable corporate
resources, allowing companies to do more with less. That's our mission, and that's what we deliver.