Question

Any non-primary of a table which is used as a primary of another table is called.. की जो अन्य टेबल में प्राइमरी की के रूप में प्रयुक्त हो, कहलाती है।

a. Primary Key
b. Secondary Key
c. Local Key
d. Foreign Key​

Answer 1

Answer:

d.Foregin Key

Explanation:

Foregin Key

Answer 2

Answer:

The correct option is d. Foreign Key.

Explanation:

Let us take a look at the definition of primary and foreign keys:

Definition: A primary key ensures data within the specific column is unique.

A foreign key is a group of attributes in a table that refers to the primary key of another table. This key is generally accustomed build a relationship between the 2 tables.

The foreign key needs to be the primary key of the parent table. The foreign key doesn't have to be unique and can have duplicate entries in the child table, but it should be unique and not have any duplicate entries at the parent table (it is the primary key).

The correct option is d. Foreign Key.

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