Paging of records using sql server stored procedure - sql

Question

I have a stored procedure which returns result from two tables using outer join and where conditions. It has order by clause as well. I want to add paging to it so that only requested number of records are returned. How can I do it? I need to supply pagenumber, totalnumber of records, current page etc ? My stored procedure is:
CREATE PROCEDURE [dbo].[hr_SearchVacanciesForService]
#SearchText NVARCHAR(50) = NULL,
#DutyStationID INT = NULL,
#VacancyCategoryIDs VARCHAR(1000) = NULL,
#Language INT = 1
AS
SELECT *
FROM dbo.hr_Vacancies LEFT OUTER JOIN dbo.hr_DutyStations ON dbo.hr_Vacancies.DutyStationID = dbo.hr_DutyStations.DutyStationID
LEFT OUTER JOIN dbo.hr_Companies
ON dbo.hr_Vacancies.CompanyID = dbo.hr_Companies.CompanyID
WHERE dbo.hr_Vacancies.Deleted = 0
AND (dbo.hr_Vacancies.JobTitleLang1 LIKE #LoacalSeacrchText
OR dbo.hr_Vacancies.JobTitleLang2 LIKE #LoacalSeacrchText
OR dbo.hr_Vacancies.DescriptionLang1 LIKE #LoacalSeacrchText
OR dbo.hr_Vacancies.DescriptionLang2 LIKE #LoacalSeacrchText
AND (dbo.hr_Vacancies.DutyStationID = #DutyStationID OR #DutyStationID IS NULL OR #DutyStationID = 0)
ORDER BY HavePriority DESC, StartDate DESC, dbo.hr_Vacancies.VacancyID DESC

Answer 1

Use option with CTE and OVER() clause
CREATE PROCEDURE [dbo].[hr_SearchVacanciesForService]
#SearchText NVARCHAR(50) = NULL,
#DutyStationID INT = NULL,
#VacancyCategoryIDs VARCHAR(1000) = NULL,
#Language INT = 1,
#NumberOfPages int
AS
;WITH cte AS
(
SELECT *, ROW_NUMBER() OVER (ORDER BY HavePriority DESC, StartDate DESC, dbo.hr_Vacancies.VacancyID DESC) AS Pages
FROM dbo.hr_Vacancies LEFT OUTER JOIN dbo.hr_DutyStations ON dbo.hr_Vacancies.DutyStationID = dbo.hr_DutyStations.DutyStationID
LEFT OUTER JOIN dbo.hr_Companies ON dbo.hr_Vacancies.CompanyID = dbo.hr_Companies.CompanyID
WHERE dbo.hr_Vacancies.Deleted = 0
AND (dbo.hr_Vacancies.JobTitleLang1 LIKE #LoacalSeacrchText
OR dbo.hr_Vacancies.JobTitleLang2 LIKE #LoacalSeacrchText
OR dbo.hr_Vacancies.DescriptionLang1 LIKE #LoacalSeacrchText
OR dbo.hr_Vacancies.DescriptionLang2 LIKE #LoacalSeacrchText
AND (dbo.hr_Vacancies.DutyStationID = #DutyStationID OR #DutyStationID IS NULL OR #DutyStationID = 0)
)
SELECT *, COUNT(*) OVER() AS totalOfPages
FROM cte
WHERE Pages BETWEEN 1 AND ISNULL(#NumberOfPages, Pages)
Example using OVER() clause with expressions:
SELECT ... ROW_NUMBER() OVER (ORDER BY
CASE WHEN dbo.hr_Vacancies.Priority = 0
THEN 0 ELSE
CASE WHEN CONVERT(DATETIME,CONVERT(CHAR(10),dbo.hr_Vacancies.PriorityDateExpired,101)) > CONVERT(DATETIME,CONVERT(CHAR(10),GETDATE(),101)) OR dbo.hr_Vacancies.PriorityDateExpired IS NULL
THEN 1 ELSE 0 END END DESC, your_second_expression_StartDate DESC)
If you want to show records from 20 to 30:
CREATE PROCEDURE [dbo].[hr_SearchVacanciesForService]
#SearchText NVARCHAR(50) = NULL,
#DutyStationID INT = NULL,
#VacancyCategoryIDs VARCHAR(1000) = NULL,
#Language INT = 1,
#StartPage int = NULL,
#EndPage int = NULL
AS
;WITH cte AS
(
SELECT *, ROW_NUMBER() OVER (ORDER BY your_case_expressionForColumnHavePriority DESC, your_case_expressionForColumnStartDate DESC, dbo.hr_Vacancies.VacancyID DESC) AS Pages
FROM dbo.hr_Vacancies LEFT OUTER JOIN dbo.hr_DutyStations ON dbo.hr_Vacancies.DutyStationID = dbo.hr_DutyStations.DutyStationID
LEFT OUTER JOIN dbo.hr_Companies ON dbo.hr_Vacancies.CompanyID = dbo.hr_Companies.CompanyID
WHERE dbo.hr_Vacancies.Deleted = 0
AND (dbo.hr_Vacancies.JobTitleLang1 LIKE #LoacalSeacrchText
OR dbo.hr_Vacancies.JobTitleLang2 LIKE #LoacalSeacrchText
OR dbo.hr_Vacancies.DescriptionLang1 LIKE #LoacalSeacrchText
OR dbo.hr_Vacancies.DescriptionLang2 LIKE #LoacalSeacrchText
AND (dbo.hr_Vacancies.DutyStationID = #DutyStationID OR #DutyStationID IS NULL OR #DutyStationID = 0)
)
SELECT *, COUNT(*) OVER() AS totalOfPages
FROM cte
WHERE Pages BETWEEN ISNULL(#StartPage, Pages) AND ISNULL(#EndPage, Pages)

Answer 2

You can read the following papers :
SQL Server stored procedures to page large tables or queries
Or
Stored Procedure having Sorting, Paging and Filtering

Answer 3

OLD METHOD - Simple Pagination script with (limit,order direction,order column,start index)
#orderColumn int ,
#orderDir varchar(20),
#start int ,
#limit int,
#searchKey varchar(20)
declare #to as int = #start+#limit
select IDENTITY(int, 1, 1) AS SnoID,null as abc, make.link,make.manf,make.name
into #tempMake
from make where status=1 and UPPER(make.name) like upper('%'+#searchKey+'%')
select * from #tempMake where SnoID>#start and SnoID<=#to
order by
CASE WHEN #orderColumn = 1 AND #orderdir = 'desc' THEN #tempMake.[manf] END DESC,
CASE WHEN #orderColumn = 1 AND #orderdir = 'asc' THEN #tempMake.[manf] END ASC,
CASE WHEN #orderColumn = 2 AND #orderdir = 'desc' THEN #tempMake.[link] END DESC,
CASE WHEN #orderColumn = 2 AND #orderdir = 'asc' THEN #tempMake.[link] END ASC
select count(#tempMake.SnoID) as row_count from #tempMake
drop table #tempMake