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entity integrity constraints

Good Gerenuk answered on February 25, 2021 Popularity 10/10 Helpfulness 4/10

answer entity integrity constraints

entity integrity constraints

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The entity integrity constraint states that primary key value can't be null.
This is because the primary key value is used to identify individual rows in relation and if the primary key has a null value, then we can't identify those rows.
A table can contain a null value other than the primary key field.

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Contributed on Feb 25 2021

Good Gerenuk

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