What is row number in sql server? How can we use it?

Hello everyone, today I am going to discuss the Row number in SQL server.

What is Row_Number()?

Row_Number is used to generate the number of each row dynamically in a sequential order based on some column orders.

So, We can use Row_Number() with order by clause, without order by we can not use the Row_Nuber function.

Row_Number() over(order by EmpName) as RowNumber


Generate unique Id for each row dynamically: – In case, if the table does not have a primary key or any unique identification number, you can use Row_Number to provide the unique ID for a table.

Row_Number() over(Order by EmailId) as Id,

An output from the above SQL Query







You can also watch video 


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