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what is the difference between "primary key" and "foreign key"
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Primary key uniquely identify a record in the table.
Foreign key is a field in the table that is primary key in another table.
By default, Primary key is clustered index and data in the database table is physically organized in the sequence of clustered index.
You can manually create an index on foreign key.
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Answer:
Primary key uniquely identify a record in the table.
Foreign key is a field in the table that is primary key in another table.
By default, Primary key is clustered index and data in the database table is physically organized in the sequence of clustered index.
You can manually create an index on foreign key.
Explanation:
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