What is the difference between Union and Union ALL?

This article will describe the frequently asked interview questions on SQL. After reading this article you will be able to understand the major difference between union and union all. This is one of the commonly asked interview questions during interviews. One should answer this question since it is a very basic SQL question being asked … Read more What is the difference between Union and Union ALL?

Top 4 SQL interview questions for developers | Updated 2020

In this article, we will try to understand the top 4 SQL interview questions for developers and frequently used functions that an interviewer can ask in the interviews. Below are the top 4 SQL interview questions for developers which we must answer when the interviewer asked. Row Number Partition Rank Dense Rank If you can … Read more Top 4 SQL interview questions for developers | Updated 2020