Cache and Raid performance. One of the key limitations of spinning disk hardware is the use of a physical reading armature and the time this takes to move across the surface of a diskâs platter to the required data blocks.
Constraints are part of a database schema definition. A constraint is usually associated with a table and is created with a CREATE CONSTRAINT or CREATE ASSERTION SQL statement. They define certain properties that data in a database must comply with.
In computing. 1  Constraint (computer-aided design), in engineering design and solid modeling. 2  Constraint satisfaction, in computer science. 3  Finite domain constraints, in constraint satisfaction.  Integrity constraints, an element of database design.