The TOP filter is a proprietary feature in T-SQL, whereas the OFFSET-FETCH filter is a standard feature. The offset_row_count can be a constant, variable, or parameter that is greater or equal to zero. Introduction to FETCH in SQL. Change ), You are commenting using your Google account. ( Log Out /  Change ), You are commenting using your Facebook account. If FETCH NEXT is the first fetch against a cursor, it returns the first row in the result set. SELECT Fname, Lname FROM Employee ORDER BY Salary OFFSET 1 ROWS; Output: FETCH. A new approach has been introduced in SQL Server 2012 using OFFSET ROWS FETCH NEXT ROWS. FETCH value should be greater than Zero because you can get 2 rows or 10 rows but not zero rows or -10 rows. How it works: First, the GROUP BY clause groups the rows into groups by values in both a and b columns. I think it can be understood more easily by making an example. It is an optional to use with order by clause. When @PageNumber = 2000, the running time is less than 20s. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. In this case, we’re offsetting ten and we’ll be starting at row 11. Otherwise, you will get an error. Because rows are stored in the table in an unpredictable order, you should always use the FETCH clause with the ORDER BY clause to get a consistent output. ; Second, the COUNT() function returns the number of occurrences of each group (a,b). As an input you have to give the number of rows per page and the page number you want to retrieve. When the OFFSET and FETCH arguments are used in with the ORDER BY clause in a SELECT statement, it will be a pagination solution for SQL Server. If the offset is negative, then it is treated as 0. OFFSET and FETCH syntax is introduced with SQL Server 2012 to easily implement performant DB level pagination for application developers. Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Tumblr (Opens in new window), Click to share on Reddit (Opens in new window), Raresql News – Extended Events at SQL Server User Group, Dubai, UAE – March 24, 2015, SQL Server 2019 -Verbose Truncation Warnings, SQL SERVER 2016 – TSQL Enhancements – DROP IF EXISTS, SQL SERVER – sp_refreshsqlmodule – How to update the metadata of an object, SQL SERVER – Fix – Error – 11553 – EXECUTE statement failed because its WITH RESULT SETS clause specified a non-nullable type for column #%d in result set #%d, Data Definition Language (DDL) Statements. OFFSET FETCH as suggested in earlier post is available only from SQL 2012 onwards. USE AdventureWorks2012; GO -- Specifying expressions for OFFSET and FETCH values DECLARE @StartingRowNumber TINYINT = 1 , @EndingRowNumber TINYINT = 8; SELECT DepartmentID, Name, GroupName FROM HumanResources.Department ORDER BY DepartmentID ASC OFFSET @StartingRowNumber - 1 ROWS FETCH NEXT @EndingRowNumber - @StartingRowNumber + 1 ROWS … OFFSET with FETCH NEXT is wonderful for building pagination support. The OFFSET and FETCH clause provides you an option to fetch only a page or a window of the results from the complete result set. Paging became quite simpler & easy to script and manage by using OFFSET & FETCH NEXT keywords in SQL Server 2012 & above. OFFSET with FETCH NEXT returns a defined window of records. Before we wrap up, I think it’s important for you to understand that you can cause your SQL to throw an error if you use the wrong offset value. Paging became quite simpler & easy to script and manage by using OFFSET & FETCH NEXT keywords in SQL Server 2012 & above. 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