SQL Server query with pagination and count

Question

I want to make a database query with pagination. So, I used a common-table expression and a ranked function to achieve this. Look at the example below.

decla         


        

Answer 1

What if you calculate the count beforehand?

declare @pagenumber int = 2;
declare @pagesize int = 3;
declare @total int;

SELECT @total = count(*)
FROM @table

with query as
(
   select name, ROW_NUMBER() OVER(ORDER BY name ASC) as line from @table
)
select top (@pagesize) name, @total total from query
where line > (@pagenumber - 1) * @pagesize

Another way, is to calculate max(line). Check the link

Return total records from SQL Server when using ROW_NUMBER

UPD:

For single query, check marc_s's answer on the link above.

    with query as
    (
       select name, ROW_NUMBER() OVER(ORDER BY name ASC) as line from @table
    )
    select top (@pagesize) name, 
       (SELECT MAX(line) FROM query) AS total 
    from query
    where line > (@pagenumber - 1) * @pagesize