what is mean by prmary key and foreign key and how can we
diffrentiate that?
Please answer me.
Advance thanks.
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Answer Posted / ravi singh
Primary Keys: Primary keys are the identifier and applied
on the table in the form of constraints. Primary key
provides uniqueness in the data.
Foreign Key: Foreign Keys are the relationship and applied
on the table in the form of constraints. Foreign key in a
table is a primary key of another table and use to make
relationship between two tables.
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