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Serial number or row number

Sometimes there would be a requirement to add serial number (or) row number to the result set.

Example: The requirement would be to select some columns from the database tables along with Serial Number like below


So, in this post we will see how we can select that using T-SQL on Microsoft SQL Server 2008

We can achieve this in several ways:

1) Using Row_Number()

Row_Number() Returns the sequential number of a row within a partition of a result set, starting at 1 for the first row in each partition. 

T-SQL Script:

        FROM database.dbo.tblTableName

2) Using Identity(Property)

Identity() property creates an identity column in the table. So, first we need to create a temporary table with [S.No] column on it and then we will select the required columns from the temporary table.

T-SQL Script:
        SELECT IDENTITY(INT,1,1) AS [S.No]
        INTO #tempTable
        FROM database.dbo.tblTableName

        --Now, the result set 

        FROM #tempTable


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