Computer Science, asked by klvijayantadas2015, 7 months ago

What is primary key and foreign key?​

Answers

Answered by Anonymous
17

Answer:

A foreign key is a column or a set of columns in one table that references the primary key columns in another table. The primary key is defined as a column (or set of columns) where each value is unique and identifies a single row of the table.

Answered by Anonymous
4

Answer:

A foreign key is a column or a set of columns in one table that references the primary key columns in another table. The primary key is defined as a column (or set of columns) where each value is unique and identifies a single row of the table.

Explanation:

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