Question

Which of the following is not used while setting a relationship between the tables?

(i) Answer key (ii) Primary key (iii) Foreign key​

Answer 1

Answer:

primary key answer is right

Explanation:

hope it's help

Answer 2

The answer key is not used while setting a relationship between the tables.(Option i)

• A key in DBMS refers to an attribute or a collection of attributes that help us identify a row separately in a table.
• One of the function of the key is when we want to establish a relationship between the different tables and columns of a relational database.
• A primary key's main features is that it must contain a unique and separate value for each row of data. It cannot contain any null values.
• The foreign key is defined in a 2nd table, but it mainly points to the primary key in the first table.
• To create relationship between two tables the primary key of one table should be put as the foreign key in another table.

#SPJ2