Integrity Constraits
Integrity contraints are useful to sustain the integrity of a database as insertions are made. They are hard to represent in ER Diagrams, except some structural constraints(keys, functionalities), so we add them in anotations.
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Integrity contraints are useful to sustain the integrity of a database as insertions are made. They are hard to represent in ER Diagrams, except some structural constraints(keys, functionalities), so we add them in anotations.