Row Offset in SQL Server

Question

Is there any way in SQL Server to get the results starting at a given offset? For example, in another type of SQL database, it\'s possible to do:

SELECT * FR         


        

Answer 1

I would avoid using SELECT *. Specify columns you actually want even though it may be all of them.

SQL Server 2005+

SELECT col1, col2 
FROM (
    SELECT col1, col2, ROW_NUMBER() OVER (ORDER BY ID) AS RowNum
    FROM MyTable
) AS MyDerivedTable
WHERE MyDerivedTable.RowNum BETWEEN @startRow AND @endRow

SQL Server 2000

Efficiently Paging Through Large Result Sets in SQL Server 2000

A More Efficient Method for Paging Through Large Result Sets

Answer 2

SELECT TOP 75 * FROM MyTable
EXCEPT 
SELECT TOP 50 * FROM MyTable

Answer 3

Depending on your version ou cannot do it directly, but you could do something hacky like

select top 25 *
from ( 
  select top 75 *
  from   table 
  order by field asc
) a 
order by field desc 

where 'field' is the key.

Answer 4

Best way to do it without wasting time to order records is like this :

select 0 as tmp,Column1 from Table1 Order by tmp OFFSET 5000000 ROWS FETCH NEXT 50 ROWS ONLY

it takes less than one second!
best solution for large tables.

Answer 5

You should be careful when using the ROW_NUMBER() OVER (ORDER BY) statement as performance is quite poor. Same goes for using Common Table Expressions with ROW_NUMBER() that is even worse. I'm using the following snippet that has proven to be slightly faster than using a table variable with an identity to provide the page number.

DECLARE @Offset INT = 120000
DECLARE @Limit INT = 10

DECLARE @ROWCOUNT INT = @Offset+@Limit
SET ROWCOUNT @ROWCOUNT

SELECT * FROM MyTable INTO #ResultSet
WHERE MyTable.Type = 1

SELECT * FROM
(
    SELECT *, ROW_NUMBER() OVER(ORDER BY SortConst ASC) As RowNumber FROM
    (
        SELECT *, 1 As SortConst FROM #ResultSet
    ) AS ResultSet
) AS Page
WHERE RowNumber BETWEEN @Offset AND @ROWCOUNT

DROP TABLE #ResultSet

Answer 6

I've been searching for this answer for a while now (for generic queries) and found out another way of doing it on SQL Server 2000+ using ROWCOUNT and cursors and without TOP or any temporary table.

Using the SET ROWCOUNT [OFFSET+LIMIT] you can limit the results, and with cursors, go directly to the row you wish, then loop 'till the end.

So your query would be like this:

SET ROWCOUNT 75 -- (50 + 25)
DECLARE MyCursor SCROLL CURSOR FOR SELECT * FROM pessoas
OPEN MyCursor
FETCH ABSOLUTE 50 FROM MyCursor -- OFFSET
WHILE @@FETCH_STATUS = 0 BEGIN
    FETCH next FROM MyCursor
END
CLOSE MyCursor
DEALLOCATE MyCursor
SET ROWCOUNT 0