·	Overview of Constraints

·	Restrictive Constraints

·	Constraint Checker

·	Deferred Constraints

·	Active and Inactive Constraints

·	Including Comments in Constraints

·	Corrective Single-Record Constraints

·	Corrective Multi-Record Constraints

·	How to Define a Domain Constraint

·	How to Define a Transitional Domain Constraint

·	How to Define a Single-Record or Multi-Record Constraint

·	How to Define a Transitional Table Constraint