Sql what is the difference between group by and order by

Instead, only unique combinations of SalesOrderID along with the sum are included. You may ask what is the point, if the results are already grouped by SalesOrderID, but what about ordering by the total price? You can do this as. Kris Wenzel has been working with databases over the past 30 years as a developer, analyst, and DBA. Kris has written hundreds of blog articles and many online courses. He loves helping others learn SQL. The summary can come out in any order. GorvGoyl GorvGoyl CMerat CMerat 4, 23 23 silver badges 25 25 bronze badges.

This statement makes virtually no sense without an accompanying example. Can you please provide an example? RevanthKrishnaKumar V. Max Schmeling Max Schmeling 12k 13 13 gold badges 60 60 silver badges bronze badges.

They have totally different meaning and aren't really related at all. Goran W 1 1 silver badge 8 8 bronze badges. PatrikAkerstrand PatrikAkerstrand Patt Mehta 3, 1 1 gold badge 19 19 silver badges 45 45 bronze badges.

Swapnil Chincholkar Swapnil Chincholkar 2, 3 3 gold badges 20 20 silver badges 22 22 bronze badges. This answer provides no additional information that the accepted answer, or any other answer given, doesn't already state. If you want to form the group of the set of tuples, then you must use Group By clause. In case you want to arrange the data of a single column or, more than one column in the set of tuples in ascending or descending order then Order By clause must be used.

Your email address will not be published. On the other hands, the Order By clause sort the result of the query in ascending or descending order. The attribute under aggregate function can not be under Group By clause whereas, the attribute under aggregate function can be there under Order By clause. Grouping of tuples is done on the basis of similarity among the attribute values of the tuples. That means SQL first makes groups from the same style values and returns one row representing the group.

To understand it better, execute the following SQL query:. Here, SQL first groups results based on the style column. Then, it checks how many names are there in each group and returns the style values and the count of names for each style. If you look closely, you may notice that the results are already ordered in ascending order. If you need results in a specific order, you have to do it yourself like below:.

Think of an employee table where you store information about employees, such as their name, job role, and salary. Each employee belongs to a different department, like finance, IT, or transport. Now, suppose you want to get the sum of salaries you paid for employees based on their department. You will need to execute an SQL command like below:. Suppose you have an eCommerce website that sells several product types.

In your database, you have a table to store information about stocks.