What is a Foreign key

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What is a foreign key?
Oct 26, 2018 in Database by Sahiti
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  • Foreign key maintains referential integrity by enforcing a link between the data in two tables.
  • The foreign key in the child table references the primary key in the parent table.
  • The foreign key constraint prevents actions that would destroy links between the child and parent tables.
answered Oct 26, 2018 by Sahiti
• 6,370 points

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