SQL Interview Questions and Answers


Post Views: 2,035  Here is some important SQL Interview Questions and Answers, these SQL Interview Questions and Answers may be help in your interview round.   SQL Interview Questions and Answers   What are difference between DELETE & TRUNCATE commands? Delete command removes the rows from a table based on the condition that we can write WHERE clause […]

What are difference between Group by and Having clause in SQL Server?

Post Views: 1,151  Group by Clause: The GROUP BY clause is used in SQL for SELECT statement to collecting the data across multiple records and making the group of one or more columns. SELECT Department1, SUM(ProductSales) AS “Total ProductSales” FROM Product_order_details GROUP BY Department1;   Having Clause: The having clause is used for only on group rows […]

All Rights Reserved 2019 | DesignzRush (OPC) Pvt. Ltd.