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How to Delete Duplicate Rows in SQL? | SQL Queries

In this article, we will see how to delete duplicate rows from a table in SQL server. This is a very common SQL interview question. Here is the table with duplicate data, notice that Avinash record is duplicated 2 times Joe record 2 times and Nancy record 2 times. Now the delete query that we … Read moreHow to Delete Duplicate Rows in SQL? | SQL Queries

The Major difference between UNION and UNION ALL? | SQL Queries

Here we will see the major difference between union and union all with practical examples. After reading this article you will have a clear understanding of these two. This comes under one of the commonly asked interview questions. One should answer this question because it is a very basic concept in SQL. We often confuse … Read moreThe Major difference between UNION and UNION ALL? | SQL Queries