SQL Interview Questions
Delete duplicate rows in sql Server We will discuss deleting all duplicate rows except one from a sql server table. Let me explain what we want to achieve. We will…
SQL Interview Questions
How does a recursive CTE work in Sql Server How a recursive CTE work line by line. SQL Server Interview questions and answers video series we discussed recursive CTE to…
SQL Interview Questions
SQL query to get organization hierarchy in SQL Server To get the best out of this blog, the following concepts need to be understood first.1. Self-Join2. CTE3. Recursive CTE Here…
SQL Interview Questions
How to find nth highest salary in sql Server This is a very common SQL Server Interview Question. There are several ways of finding the nth highest salary. By the…
SQL SERVER INTERVIEW QUESTIONS
SQL SERVER INTERVIEW QUESTIONS Normalization is a database design technique to remove redundant data. Denormalization is a database design technique to improve search performance. we merge tables.Duplicate data is present…