Basic SQL Interview Questions for Freshers 1. What is the difference between a primary key and a unique key? Primary Key: The primary key is used to uniquely identify every record in a table. It ensures that NULL values are not present in the table. Unique Key: Unique key also identifie...
SQL is one of the most common skills that recruiters look for not only in IT-related jobs but also in various other job profiles, including business, finance, insurance, and other domains. This MS SQL Server Interview Questions blog comprises all the questions that are asked by companies in ...