All Questions

Informatics Practices - New

Follow
Showing 1 out of 1 Question
59 Views

difference between primary key unique constraints

Niraj Thakur 21st Aug, 2020

Dear aspirant,

These are some differences:-

Primary key: 1.   A primary key is a column of table which uniquely identifies each tuple (row) in that table.

2.    Primary key enforces integrity constraints to the table.

3.   Only one primary key is allowed to use in a table.

4.   The primary

The question have been saved in answer later, you can access it from your profile anytime. Access now