Sorting && Paging With Recursive Queries
Jun 14, 2007
Hi, can anyone tell me how I can get implement sorting and paging using a recursive query?
I have a created a stored procedure (bit like the simple example below), but would like to add in sorting and paging using order by and row_number().
DECLARE @CategoryID int
SET @CategoryID = 12;
WITH CTE_Example (CategoryID, CategoryName, ParentID, Depth, RowNum)
AS
(
SELECT CategoryID, CategoryName, ParentID, 0 AS Depth, Row_Number() OVER (ORDER BY CategoryName) AS RowNum
FROM Categories WHERE CategoryID = @CategoryID
UNION ALL
SELECT Categories.CategoryID, Categories.CategoryName, Categories.ParentID, CTE_Example.Depth + 1 AS Depth, Row_Number() OVER (ORDER BY Categories.CategoryName) AS RowNum
FROM Categories
JOIN CTE_Example ON Categories.ParentID = CTE_Example.CategoryID
)
SELECT * FROM CTE_Example WHERE RowNum BETWEEN @Start AND @End ORDER BY RowNum
I think the problem comes down to the Union, appreciate if someone can help.
Many thanks,
Matt
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Apr 13, 2008
Hi guys
I know this topic has been gone overed a bit but it just seems that no one has a really good answer.
What i need it to be able to be able to pass in which index row i want to go from and to, as weel a a token which corresponds to how it should be sorted.
The problem with the methods that i have seen to do this is that they all use a case statement to handle the sorting like the below;
Code Snippet
;WITH TotalSales AS (
SELECT CASE @OrderBy
WHEN 'UnitPrice' THEN ROW_NUMBER() OVER (ORDER BY UnitPrice)
WHEN 'OrderQty' THEN ROW_NUMBER() OVER (ORDER BY OrderQty)
WHEN 'CarrierTrackingNumber' THEN (ROW_NUMBER() OVER (ORDER BY CarrierTrackingNumber))
END AS RowNumber,
CarrierTrackingNumber,
UnitPrice,
OrderQty
FROM Sales.SalesOrderDetail
WHERE CarrierTrackingNumber LIKE '%F%'
)
SELECT *
FROM TotalSales
WHERE RowNumber between @StartIndex and @StartIndex + 9
At the begging this looks really good but it turns out that this is really slow. In fact it is about twice as slow as using the below dynamic SQL:
Code Snippet
SET @SafeOrderBy = CASE @OrderBy
WHEN 'UnitPrice' THEN 'UnitPrice'
WHEN 'OrderQty' THEN 'OrderQty'
WHEN 'CarrierTrackingNumber' THEN 'CarrierTrackingNumber'
END
SET @temp = N'
SELECT *
FROM (
SELECT ROW_NUMBER() OVER (ORDER BY ' + @SafeOrderBy + ') AS RowNumber,
CarrierTrackingNumber,
UnitPrice,
OrderQty
FROM Sales.SalesOrderDetail
WHERE CarrierTrackingNumber LIKE ''%F%''
) SUB
WHERE SUB.RowNumber between ' + @StartIndexAlt + ' and ' + @StartIndexAlt + ' + 9'
EXEC sp_executesql @temp
Now for a whole heap of reasons I would like to avoid using dynamic SQL to do this but if the alternative means that my queries take twice as long i dont see i have much of a choice.
Does anyone have any ideas??
Thanks
Anthony
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Jan 20, 2008
Hi guys
I am wondering if anyone has any practical ways of sorting and paging within SQL server 2005. I have seen plenty of different example and there seems to numerous ways of doing it but i was wondering if anyone has a method that they have been using that they know works in enterprise level solutions and will work in the majority of cases as a standard. The method that has stood out thus far is Common table expressions but I am not sure if this is the best or optimal approach and whether it will work in with dynamic sorting.
Thanks
Anthony
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Aug 13, 2007
I apologize in advance, but this post might get somewhat lengthy.
I'm new to the whole pagiong and sorting in SQL Server 2005, and I'm trying to get my SQL to perform in a certain way but can't seem to nail it just down. Hopefully someone can provide some insight or direction. Here's the scoop:
The gui sorts on any column chosen. For example, there's USER, ADDRESS, CITY, STATE, ZIP. The gui allows you to choose how many rows you wish to display per page. If there are 500 rows that meet the search criteria and you choose five pages, there should be 100 records per page. Here's the code:
INSERT INTO #RESULTS
SELECT PY.PaymentId
, PY.PayeeId
, PY.PartyAddressId
, PY.DistributionId
, PY.EntitlementId
, PY.DeliveryTypeEnumItemId
, PY.AccountPaymentId
, PY.ParentPaymentId
, PY.PaymentAmount
, PY.PaymentDate
, PY.PaymentStatusEnumItemId
, PY.PaymentStatusDate
, PY.ReleaseRunId
, PY.ReleaseDate
, PY.AccountTransactionLogId
, PY.AccountStatusEnumItemId
, PY.AccountStatusDate
, PY.AccountPaidAmount
, PY.ReconciledInd
, PY.UndeliverableInd
, PY.ReissueNote
, PY.CreateDate
, PY.CreateId
, PY.ModifiedDate
, PY.ModifiedId
, DS.Description
, AC.Description
, AC.AccountProvider
, AC.AccountId
, PT.Name
, PA.AddressLine1
, PA.AddressLine2
, PA.City
, PA.State
, PA.Zip5
, PA.Zip4
, PE.clm_no
, CM.clmnt_idno
FROM Payment PY (NOLOCK)
JOIN (SELECT DISTINCT
PY.AccountPaymentId,
ROW_NUMBER() OVER(ORDER BY PY.AccountPaymentId) AS RowNum
FROM Payment PY (NOLOCK)) AS SQ
ON (SQ.AccountPaymentId = PY.AccountPaymentId)
JOIN Distribution DS (NOLOCK)
ON (DS.DistributionId = PY.DistributionId)
JOIN Account AC (NOLOCK)
ON (AC.AccountId = DS.AccountId)
JOIN PartyAddress PA (NOLOCK)
ON (PA.PartyAddressId = PY.PartyAddressId)
JOIN Party PT (NOLOCK)
ON (PT.PartyId = PA.PartyId)
JOIN Payee PE (NOLOCK)
ON (PE.PayeeId = PY.PayeeId)
JOIN clm CM (NOLOCK)
ON (CM.clm_no = PE.clm_no)
WHERE RowNum BETWEEN (((@Page * @PageSize) - @PageSize) + 1) AND ((@Page * @PageSize) - @PageSize) + @PageSize
AND ((@PayeeName IS NULL) OR (PT.[Name] LIKE '%' + @PayeeName + '%'))
AND ((@AccountId IS NULL) OR (AC.AccountId = @AccountId))
AND ((@DistributionId IS NULL) OR (DS.DistributionId = @DistributionId))
AND ((@PaymentDate IS NULL) OR (PY.PaymentDate = DATEADD(day, DATEDIFF(day, 0, @PaymentDate), 0))) -- Ignores the time
AND ((@PaymentNumber IS NULL) OR (PY.AccountPaymentId = @PaymentNumber))
AND ((@IsReconciled IS NULL) OR (PY.ReconciledInd = @IsReconciled))
AND ((@AmountIssued IS NULL) OR (PY.PaymentAmount = @AmountIssued))
AND ((@AmountPaid IS NULL) OR (PY.AccountPaidAmount = @AmountPaid))
AND ((@IssueStatus IS NULL) OR (PY.PaymentStatusEnumItemId = @IssueStatus))
AND ((@AccountStatus IS NULL) OR (PY.AccountStatusEnumItemId = @AccountStatus))
ORDER BY AccountPaymentID
--GET A COUNT OF THE ROWS SELECTED
SELECT @TotalRows = Count(*)
FROM Payment PY (NOLOCK)
JOIN (SELECT DISTINCT
PY.PaymentId,
ROW_NUMBER() OVER(ORDER BY PY.PaymentId) AS RowNum
FROM Payment PY (NOLOCK)) AS SQ
ON (SQ.PaymentId = PY.PaymentId)
JOIN Distribution DS (NOLOCK)
ON (DS.DistributionId = PY.DistributionId)
JOIN Account AC (NOLOCK)
ON (AC.AccountId = DS.AccountId)
JOIN PartyAddress PA (NOLOCK)
ON (PA.PartyAddressId = PY.PartyAddressId)
JOIN Party PT (NOLOCK)
ON (PT.PartyId = PA.PartyId)
JOIN Payee PE (NOLOCK)
ON (PE.PayeeId = PY.PayeeId)
JOIN clm CM (NOLOCK)
ON (CM.clm_no = PE.clm_no)
WHERE
((@PayeeName IS NULL) OR (PT.[Name] LIKE '%' + @PayeeName + '%'))
AND ((@AccountId IS NULL) OR (AC.AccountId = @AccountId))
AND ((@DistributionId IS NULL) OR (DS.DistributionId = @DistributionId))
AND ((@PaymentDate IS NULL) OR (PY.PaymentDate = DATEADD(day, DATEDIFF(day, 0, @PaymentDate), 0))) -- Ignores the time
AND ((@PaymentNumber IS NULL) OR (PY.AccountPaymentId = @PaymentNumber))
AND ((@IsReconciled IS NULL) OR (PY.ReconciledInd = @IsReconciled))
AND ((@AmountIssued IS NULL) OR (PY.PaymentAmount = @AmountIssued))
AND ((@AmountPaid IS NULL) OR (PY.AccountPaidAmount = @AmountPaid))
AND ((@IssueStatus IS NULL) OR (PY.PaymentStatusEnumItemId = @IssueStatus))
AND ((@AccountStatus IS NULL) OR (PY.AccountStatusEnumItemId = @AccountStatus))
SET @ORDERBY = ' ORDER BY ' + @SORT --END
--CASE WHEN @Sort IS NULL THEN '' ELSE
EXEC('SELECT * FROM #RESULTS ' + @ORDERBY)
--SET @TOPSQL = 'SELECT TOP ' + Convert(VarChar,@PageSize) + '* FROM #RESULTS ' + @ORDERBY
--SELECT @TOPSQL
--EXEC (@TOPSQL)
SET @PAGES = Round(@totalRows / @PageSize,0,1) + CASE WHEN @TotalRows % @PageSize = 0 THEN 0 ELSE 1 END
-- Return Total number of pages and Total number of Rows
SELECT @PAGES AS PageCount,
@TOTALROWS AS TotalRecords
I get back the rows I'm expecting and it looks fine. What I can't get to happen is the proper sort.
I get back records 1014 records - 1001 through 2014. I choose to display 400 records per page, so ther will be 3 pages total (1001 through 1400 on page 1, 1401 through 1800 on page 2, and 1801 through 2014 on page 3. All the records are sorted by RECORD NUMBER (1000, 1001, etc.)
What I would like to do is when I choose to sort on the column (ASC or DESC),
1.) The entire record set is esssentially retrieved again,
2.) The record set is resorted in the proper order
3.) The record set is redisplayed.
For example, if I'm on Page 2, and I choose to sort in DESCending order, Page 1 would then have records 2014 through 1615, Page 2 would display 1614 through 1215, and page 3 would have 1214 through 1001. Since I was already on Page 2, I would be seeing Page 2 with the new sort. Now when I resort , it just sorts the records on the individual pages, not the entire result set.
Hopefully this all made sense...!
If anyone has any advice or insight, please don't hesitate!
Thank You!!
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Aug 14, 2007
I apologize in advance, but this post might get somewhat lengthy.
I'm new to the whole pagiong and sorting in SQL Server 2005, and I'm trying to get my SQL to perform in a certain way but can't seem to nail it just down. Hopefully someone can provide some insight or direction. Here's the scoop:
The gui sorts on any column chosen. For example, there's USER, ADDRESS, CITY, STATE, ZIP. The gui allows you to choose how many rows you wish to display per page. If there are 500 rows that meet the search criteria and you choose five pages, there should be 100 records per page. Here's the code:
Code Snippet
INSERT INTO #RESULTS
SELECT PY.PaymentId
, PY.PayeeId
, PY.PartyAddressId
, PY.DistributionId
, PY.EntitlementId
, PY.DeliveryTypeEnumItemId
, PY.AccountPaymentId
, PY.ParentPaymentId
, PY.PaymentAmount
, PY.PaymentDate
, PY.PaymentStatusEnumItemId
, PY.PaymentStatusDate
, PY.ReleaseRunId
, PY.ReleaseDate
, PY.AccountTransactionLogId
, PY.AccountStatusEnumItemId
, PY.AccountStatusDate
, PY.AccountPaidAmount
, PY.ReconciledInd
, PY.UndeliverableInd
, PY.ReissueNote
, PY.CreateDate
, PY.CreateId
, PY.ModifiedDate
, PY.ModifiedId
, DS.Description
, AC.Description
, AC.AccountProvider
, AC.AccountId
, PT.Name
, PA.AddressLine1
, PA.AddressLine2
, PA.City
, PA.State
, PA.Zip5
, PA.Zip4
, PE.clm_no
, CM.clmnt_idno
FROM Payment PY (NOLOCK)
JOIN (SELECT DISTINCT
PY.AccountPaymentId,
ROW_NUMBER() OVER(ORDER BY PY.AccountPaymentId) AS RowNum
FROM Payment PY (NOLOCK)) AS SQ
ON (SQ.AccountPaymentId = PY.AccountPaymentId)
JOIN Distribution DS (NOLOCK)
ON (DS.DistributionId = PY.DistributionId)
JOIN Account AC (NOLOCK)
ON (AC.AccountId = DS.AccountId)
JOIN PartyAddress PA (NOLOCK)
ON (PA.PartyAddressId = PY.PartyAddressId)
JOIN Party PT (NOLOCK)
ON (PT.PartyId = PA.PartyId)
JOIN Payee PE (NOLOCK)
ON (PE.PayeeId = PY.PayeeId)
JOIN clm CM (NOLOCK)
ON (CM.clm_no = PE.clm_no)
WHERE RowNum BETWEEN (((@Page * @PageSize) - @PageSize) + 1) AND ((@Page * @PageSize) - @PageSize) + @PageSize
AND ((@PayeeName IS NULL) OR (PT.[Name] LIKE '%' + @PayeeName + '%'))
AND ((@AccountId IS NULL) OR (AC.AccountId = @AccountId))
AND ((@DistributionId IS NULL) OR (DS.DistributionId = @DistributionId))
AND ((@PaymentDate IS NULL) OR (PY.PaymentDate = DATEADD(day, DATEDIFF(day, 0, @PaymentDate), 0))) -- Ignores the time
AND ((@PaymentNumber IS NULL) OR (PY.AccountPaymentId = @PaymentNumber))
AND ((@IsReconciled IS NULL) OR (PY.ReconciledInd = @IsReconciled))
AND ((@AmountIssued IS NULL) OR (PY.PaymentAmount = @AmountIssued))
AND ((@AmountPaid IS NULL) OR (PY.AccountPaidAmount = @AmountPaid))
AND ((@IssueStatus IS NULL) OR (PY.PaymentStatusEnumItemId = @IssueStatus))
AND ((@AccountStatus IS NULL) OR (PY.AccountStatusEnumItemId = @AccountStatus))
ORDER BY AccountPaymentID
--GET A COUNT OF THE ROWS SELECTED
SELECT @TotalRows = Count(*)
FROM Payment PY (NOLOCK)
JOIN (SELECT DISTINCT
PY.PaymentId,
ROW_NUMBER() OVER(ORDER BY PY.PaymentId) AS RowNum
FROM Payment PY (NOLOCK)) AS SQ
ON (SQ.PaymentId = PY.PaymentId)
JOIN Distribution DS (NOLOCK)
ON (DS.DistributionId = PY.DistributionId)
JOIN Account AC (NOLOCK)
ON (AC.AccountId = DS.AccountId)
JOIN PartyAddress PA (NOLOCK)
ON (PA.PartyAddressId = PY.PartyAddressId)
JOIN Party PT (NOLOCK)
ON (PT.PartyId = PA.PartyId)
JOIN Payee PE (NOLOCK)
ON (PE.PayeeId = PY.PayeeId)
JOIN clm CM (NOLOCK)
ON (CM.clm_no = PE.clm_no)
WHERE
((@PayeeName IS NULL) OR (PT.[Name] LIKE '%' + @PayeeName + '%'))
AND ((@AccountId IS NULL) OR (AC.AccountId = @AccountId))
AND ((@DistributionId IS NULL) OR (DS.DistributionId = @DistributionId))
AND ((@PaymentDate IS NULL) OR (PY.PaymentDate = DATEADD(day, DATEDIFF(day, 0, @PaymentDate), 0))) -- Ignores the time
AND ((@PaymentNumber IS NULL) OR (PY.AccountPaymentId = @PaymentNumber))
AND ((@IsReconciled IS NULL) OR (PY.ReconciledInd = @IsReconciled))
AND ((@AmountIssued IS NULL) OR (PY.PaymentAmount = @AmountIssued))
AND ((@AmountPaid IS NULL) OR (PY.AccountPaidAmount = @AmountPaid))
AND ((@IssueStatus IS NULL) OR (PY.PaymentStatusEnumItemId = @IssueStatus))
AND ((@AccountStatus IS NULL) OR (PY.AccountStatusEnumItemId = @AccountStatus))
SET @ORDERBY = ' ORDER BY ' + @SORT --END
--CASE WHEN @Sort IS NULL THEN '' ELSE
EXEC('SELECT * FROM #RESULTS ' + @ORDERBY)
--SET @TOPSQL = 'SELECT TOP ' + Convert(VarChar,@PageSize) + '* FROM #RESULTS ' + @ORDERBY
--SELECT @TOPSQL
--EXEC (@TOPSQL)
SET @PAGES = Round(@totalRows / @PageSize,0,1) + CASE WHEN @TotalRows % @PageSize = 0 THEN 0 ELSE 1 END
-- Return Total number of pages and Total number of Rows
SELECT @PAGES AS PageCount,
@TOTALROWS AS TotalRecords
I get back the rows I'm expecting and it looks fine. What I can't get to happen is the proper sort.
I get back records 1014 records - 1001 through 2014. I choose to display 400 records per page, so ther will be 3 pages total (1001 through 1400 on page 1, 1401 through 1800 on page 2, and 1801 through 2014 on page 3. All the records are sorted by RECORD NUMBER (1000, 1001, etc.)
What I would like to do is when I choose to sort on the column (ASC or DESC),
1.) The entire record set is esssentially retrieved again,
2.) The record set is resorted in the proper order
3.) The record set is redisplayed.
For example, if I'm on Page 2, and I choose to sort in DESCending order, Page 1 would then have records 2014 through 1615, Page 2 would display 1614 through 1215, and page 3 would have 1214 through 1001. Since I was already on Page 2, I would be seeing Page 2 with the new sort. Now when I resort , it just sorts the records on the individual pages, not the entire result set.
Hopefully this all made sense...!
If anyone has any advice or insight, please don't hesitate!
Thank You!!
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Jul 27, 2007
Guys, I need help sorting a recursive query. This is my table
CTLG Table
txtID(PK)
txtParentID(FK)
numSortID
txtKeywords
txtTitle
memContent
I'm using txtParentID as the FK, which matches with txtID, to create the recursion.
This is my current Query
This is my current Query:
Code Snippet
WITH tree (data, id, level, pathstr, numSortID, memContent)
AS (SELECT txtTitle, txtid, 0,
CAST('' AS NVARCHAR(MAX)), numSortID, memContent
FROM CTLG
WHERE txtParentID IS NULL
UNION ALL
SELECT txtTitle, V.txtid, t.level + 1, t.pathstr + '>' + V.txtTitle, V.numSortID, v.memContent
FROM CTLG V
INNER JOIN tree t
ON t.id = V.txtParentID)
SELECT SPACE(level) + data as data, id, level, pathstr, numSortID, memContent
FROM tree
The output is this:
Data
ID
Level
pathstr
NumSortID
Undergraduate Catalog
1
0
1
History
12
1
>History
7
Academic Calendar
14
1
>Academic Calendar
8
Preface
2
1
>Preface
2
NonDiscrimination Statement
3
1
>NonDiscrimination Statement
3
Accreditation
4
1
>Acreditation
4
Memberships
5
1
>Memberships
5
Mission Statement
8
1
>Mission Statement
6
Fall Calendar
20
2
>Academic Calendar>Fall Calendar
1
Winter Calendar
21
2
>Academic Calendar>Winter Calendar
2
Summer Calendar
22
2
>Academic Calendar>Summer Calendar
3
I need my out put to look like the following:
Undergraduate Catalog Level (0) NumSortID (1)
Preface (1) (2)
NonDiscrimination Statement (1) (3)
Accreditation (1) (4)
memberships (1) (5)
Mission Statement (1) (6)
History (1) (7)
Academic Calendar (1) (8)
Fall Calendar (2) (1)
Summer Calendar(2) (2)
Winter Calendar (2) (3)
The Order that I would like to have is based on NumSortID and by Levels. Like the above example.
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May 6, 2007
As I said above, how do I put sorting + paging in a stored procedure.My database has approximately 50000 records, and obviously I can't SELECT all of them and let GridView / DataView do the work, right? Or else it would use to much resources per one request.So I intend to use sorting + paging at the database level. It's going to be either hardcode SQL or stored procedures.If it's hardcode SQL, I can just change SQL statement each time the parameters (startRecord, maxRecords, sortColumns) change.But I don't know what to do in stored procedure to get the same result. I know how to implement paging in stored procedure (ROW_NUMBER) but I don't know how to change ORDER BY clause at runtime in the stored procedure.Thanks in advance.PS. In case "ask_Scotty", who replied in my previous post, http://forums.asp.net/thread/1696818.aspx, is reading this, please look at my reply on your answer in the last post. Thank you.
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May 18, 2005
I've made another topic before concerning this problem, but since it was really confusing, I will made one clearer (it was about orthodromic formula, in case you read it, but the problem change during the topic, so thats why im creating this new one too).
I have a stored procedure with custom pagin method inside, and I want to sort my records on a fields I create myself (which will receive a different value for each record.) Now, I want to sort on this temporary field. And since this is a custom paging method I can choose between many page. Now, for the first page, it sorts fine. But when I choose a page above the first one, the sorting is not right (the results all are wrong).
So my real question is: is it really possible to sort on a Temporary Field in a custom paging method (because I know I can do it without any problem on a real field from my table, it just doesnt work right when I try on a temporary field). I tried to solve my problem with this little SQL instruction, but it didnt give me any result yet:
SELECT TOP 20 PK, test = field_value FROM Table WHERE PK not in (SELECT TOP 10 ad_id FROM Table ORDER BY ?) ORDER BY ?
well thanks for taking the time to read this, any help woulb be appreciated.
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Apr 28, 2008
This is for SQL Server 2000. The purpose of the procedure is to return a subset of a filtered and sorted result set. The subset, filter criteria, and sort column and sort direction can be set dynamically. It uses the rowcount technique for paging.
This would be used to drive an ASP.NET gridview which supports filtering of the data, paging, and sorting. Please let me know what improvements I can make or if you have an idea for a better solution. (I didn't put this in a vBulletin code block because personally I find two sets of scroll bars annoying, but I can if people think it's better).
CREATE PROCEDURE dbo.Books_GetFilteredSortedSubset
(
-- paging
@startRowIndex INT = 1,
@maximumRows INT = 999999,
-- sorting
@sortColumn NVARCHAR(30) = 'title_id',
@sortDirection NVARCHAR(4) = 'ASC',
-- filtering
@title VARCHAR(100) = NULL,
@type VARCHAR(30) = NULL,
@price MONEY = NULL
)
AS
BEGIN
DECLARE @sql NVARCHAR(4000)
DECLARE @parameters NVARCHAR(4000)
DECLARE @tableSource NVARCHAR(4000)
DECLARE @orderByExpression NVARCHAR(4000)
DECLARE @searchCondition NVARCHAR(4000)
DECLARE @uniqueKey NVARCHAR(30)
-- set the unique key used to ensure the rows are sorted deterministically
SET @uniqueKey = 'title_id'
-- build the FROM table source used throughout this procedure
SET @tableSource = 'titles t
inner join publishers p on t.pub_id = p.pub_id'
-- build the WHERE search condition used to control filtering throughout this procedure
SET @searchCondition = '(1 = 1)'
IF @title IS NOT NULL
SET @searchCondition = @searchCondition + ' AND (title LIKE ''%' + @title + '%'')'
IF @type IS NOT NULL
SET @searchCondition = @searchCondition + ' AND (type LIKE ''' + @type + '%'')'
IF @price IS NOT NULL
SET @searchCondition = @searchCondition + ' AND (price = ' + CAST(@price AS NVARCHAR) + ')'
-- build the ORDER BY expression used to control the sorting throughout this procedure
SET @orderByExpression = @sortColumn + ' ' + @sortDirection
-- add uniqeKey to ORDER BY statement to ensure consistent ordering of results when @sortColumn is not unique
IF @sortColumn <> @uniqueKey
SET @orderByExpression = @orderByExpression + ', ' + @uniqueKey + ' ' + @sortDirection
-- Get the column value at the position specified by @startRowIndex when the results are sorted in the desired sort order
SET @sql = 'SET ROWCOUNT @rowcount; SELECT @start_row = ' + @sortColumn + ', @start_row_id = ' + @uniqueKey +
' FROM ' + @tableSource +
' WHERE ' + @searchCondition + ' ORDER BY ' + @orderByExpression
PRINT @sql
SET @parameters = '@rowcount INT, @start_row sql_variant OUTPUT, @start_row_id sql_variant OUTPUT'
DECLARE @start_row sql_variant
DECLARE @start_row_id sql_variant
EXEC sp_executesql @sql, @parameters, @rowcount = @startRowIndex, @start_row = @start_row OUTPUT, @start_row_id = @start_row_id OUTPUT
-- Get the filtered subset of results
-- add sql to filter the results based on criteria passed in as parameters
SET @sql = 'SET ROWCOUNT @rowcount; ' +
'SELECT
t.title_id,
t.title,
t.price,
t.type,
p.pub_name,
p.city,
p.state,
p.country
FROM ' + @tableSource +
' WHERE (' + @searchCondition + ') AND '
-- add sql to control the starting row
IF @sortDirection = 'ASC'
SET @sql = @sql + '( (' + @sortColumn + ' > @start_row) OR (' +
@sortColumn + ' = @start_row AND ' + @uniqueKey + ' >= @start_row_id) )'
ELSE
SET @sql = @sql + '( (' + @sortColumn + ' < @start_row) OR (' +
@sortColumn + ' = @start_row AND ' + @uniqueKey + ' <= @start_row_id) )'
-- add sql to control the ordering of everything
SET @sql = @sql + ' ORDER BY ' + @orderByExpression
PRINT @sql
SET @parameters = '@rowcount INT, @start_row sql_variant, @start_row_id sql_variant'
EXEC sp_executesql @sql, @parameters, @rowcount = @maximumRows, @start_row = @start_row, @start_row_id = @start_row_id
-- Reset the rowcount for others
SET ROWCOUNT 0
END;
GO
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Jan 16, 2008
User's requirement:
use the SP get the dataset from DB at once.
Want to make an accurate count of paging ( 200 rows /page) at the SSRS side.
Need to provide sorting, user just need to click the according column header's caption.
The design is:
we add group to devide the data into 200 per unit. Choice 'page break at end'.
add 2 Report Parameters, SD & SF, means sorting direction and Field.
In the Table Parameters add:
=IIF(Parameters!SD.Value="Ascending",Fields(Parameters!SF.Value).Value,"")
=IIF(Parameters!SD.Value="Descending",Fields(Parameters!SF.Value).Value,"")
everything seems OK at this time, and the rpt is very quick.
The Bug is:
Test team found out the sorting was broken by group, because we Choice 'page break at end'.
Noe the sorting scope is just the first page (first group)
Help wants:
query DB once , Accurate paging, full scope sorting.
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Jul 13, 2004
I have a following structure
table A
userid ReferedBy
BA
C B
Table B
Userid compID
AAlpha
Bself
Cself
now the scenario is :
the user A is from the company "Alpha"
he introduces user B, who registers in the system his company bcomes "self",
now B inturn refers user C who also registers in the system and his company is now again "self".
Now I need to generate a report of number of users that have registered under one company, for eg.
for the company "Alpha" no of users becomes 2 since A refered to two users and both of them have registered.
I m stuck with the query.
thanks in advance...
regards,
Harshal
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Dec 1, 2006
Hello all,for computig graphs and its transitive closure I need recursive SQL-Queries. Best it will be fast.Now I heard of a new syntax in SQL: the WITH RECURSIVE-Clause. Which Database-Editions and versions support those recursive queries? Can anyone tell me where can I find more info about it? Thanks and best regardsyelmin
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Feb 18, 1999
Dear fellows,
Can anybody tell me how can i apply recusive/Tree query using select
statement.
For example I've a table structure for an Organization as follows:
TableName: Employee_tbl
Fields: emp_id, emp_name, supervisor_id
emp_id emp_name supervisor_id
---------- --------------- -------------------
101 ZAFIAN
102 BRUNNER 101
108 CALLAHAN 102
105 RUSSO 102
110 SIM 102
103 DUELL 101
and so on
1. How can I get the above records in Hirarchical format starting from top
or from anywhere else in the hierarchy?
In Oracle it can be done as follows:
SELECT emp_id,emp_name,supervisor_id
FROM employee_tbl
CONNECT BY supervisor_id = PRIOR emp_id
START WITH supervisor_id is null;
Please reply me at the following address if possible:
faisal@visualsoft-inc.com
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May 22, 2008
Hi,
Trying to update a single value within a table, thus eliminating nulls. Another words, if the value is NULL update it with the next preceeding non-null value. In this example, 1 should be CO, 2 should be CO, 6 should be CO, 8 should be TT, and 10 should be TT.
For example,
1 NULL
2 NULL
3 CO
4 CO
5 CO
6 NULL
7 TT
8 NULL
9 TT
10 NULL
Any ideas? Thanks.
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Oct 24, 2007
Good morning!
Or good "whatever daytime you read this"!
SQL Server 2005 has this nice new feature Common table expression or CTE, which allows quite easy to define a "drill down" in recursive self join tables.
By recursive self join tables I mean this common example:
idPerson INT <--------|
idReportsTo INT ---------|
PersonName VARCHAR
A CTE to "go down" the tree from any entry point and find all subs to a parent entry is well documented. I managed to make myself a CTE and use it a lot!
What I find myself needing too often is:
a) Look up from a deep position and find the entry that is for example 3 steps above my reference in the branch
b) Look up from a deep position and find the one that is 2nd or 3rd level (absolute) from top of the tree in the branch
I did try quite some versions, but I cannot get it to work. Any idea how you do the "drill up" with a CTE or another SQL solution.
Of course performance is always needed, so I'd like to avoid the cursors I got it working with and use now. (It is not working good I admit...)
Cheers!
Ralf
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Mar 30, 2015
Our monitoring tool shows that our production system periodically experiencing large rate - up to 800 memory pages/sec. How to find out which particular queries, S.P., processes that initiate this?
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Aug 25, 2015
Msg 240, Level 16, State 1, Line 14
Types don't match between the anchor and the recursive part in column "ParentId" of recursive query "tmp". Below is query,
DECLARE @TBL TABLE (RowNum INT, DataId int, DataName NVARCHAR(50), RowOrder DECIMAL(18,2) NULL, ParentId INT NULL)
INSERT INTO @TBL VALUES
(1, 105508, 'A', 1.00, NULL),
(2, 105717, 'A1', NULL, NULL),
(3, 105718, 'A1', NULL, NULL),
(4, 105509, 'B', 2.00, NULL),
(5, 105510, 'C', 3.00, NULL),
(6, 105514, 'C1', NULL, NULL),
[code]....
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Jul 23, 2005
I am having problem to apply updates into this function below. I triedusing cursor for updates, etc. but no success. Sql server keeps tellingme that I cannot execute insert or update from inside a function and itgives me an option that I could write an extended stored procedure, butI don't have a clue of how to do it. To quickly fix the problem theonly solution left in my case is to convert this recursive functioninto one recursive stored procedure. However, I am facing one problem.How to convert the select command in this piece of code below into an"execute" by passing parameters and calling the sp recursively again.### piece of code ############SELECT @subtotal = dbo.Mkt_GetChildren(uid, @subtotal,@DateStart, @DateEnd)FROM categories WHERE ParentID = @uid######### my function ###########CREATE FUNCTION Mkt_GetChildren(@uid int, @subtotal decimal ,@DateStart datetime, @DateEnd datetime)RETURNS decimalASBEGINIF EXISTS (SELECTuidFROMcategories WHEREParentID = @uid)BEGINDECLARE my_cursor CURSOR FORSELECT uid, classid5 FROM categories WHERE parentid = @uiddeclare @getclassid5 varchar(50), @getuid bigint, @calculate decimalOPEN my_cursorFETCH NEXT FROM my_cursor INTO @getuid, @getclassid5WHILE @@FETCH_STATUS = 0BEGINFETCH NEXT FROM my_cursor INTO @getuid, @getclassid5select @calculate = dbo.Mkt_CalculateTotal(@getclassid5, @DateStart,@DateEnd)SET @subtotal = CONVERT (decimal (19,4),(@subtotal + @calculate))ENDCLOSE my_cursorDEALLOCATE my_cursorSELECT @subtotal = dbo.Mkt_GetChildren(uid, @subtotal,@DateStart, @DateEnd)FROM categories WHERE ParentID = @uidENDRETURN @subtotalENDGORod
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Feb 11, 2007
I have a report where I am giving the users a parameter so that they can select which field they would like to sort on.The report is also grouping by that field. I have a gruping section, where i have added code to group on the field I want based on this parameter, however I also would like to changing the sorting order but I checked around and I did not find any info.
So here is my example. I am showing sales order info.The user can sort and group by SalesPerson or Customer. Right now, I have code on my dataset to sort by SalesPerson Code and Order No.So far the grouping workds, however the sorting does not.
Any suggestions would help.
Thanks
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Jul 10, 2015
SSRS 2012 - VS2010...The report compares two years with a sort order on a value that has been engineered based on text switched to int. When sorting A-Z this is the result in the horizontal axis is: 5th, K, 1st, 2nd, 3rd, 4th, 5th..When sorting Z-A the result in the horizontal axis is:5th, 4th, 3rd, 2nd, 1st, PreK..Z-A is correct but A-Z sorting shows 5th as the start and end. The magnitude of the PreK location is correct but the label is wrong on the A-Z sort order. The sorting is implemented using the Category Group sorting option.
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Oct 12, 2004
Is there any way to implement a paging scheme such that only the required records are transferred from SQL Server to the asp.net app?
The only support I can find such as the DataAdaptor.Fill will bring all the records back from SQL Server and then create the page...
This obviously still takes time and memory based on the entire query, not the page size.
Any ideas?
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Jul 26, 2005
I have a table with a lot of records. I want to make paging without passing all the data back to a dataset. I know how to select the top n rows but how do I select 10-20 for example.
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Dec 9, 2005
Hello,
How can I do paging in my SQL Server stored procedure.
I have thought of a way, but I need to :
"SELECT TOP @Count..."
which is not allowed :S
What can I do to get around this?
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Dec 11, 2003
I have noticed that the server i'm running SQL2k on is starting to page out of the norm. I can see that the regsvc and sqlservr svc are showing high page faults/sec. I have 3 gigs of ram and set the max that sql can use to 2 gigs. It is currently using only 168 MB and still will show high paging at random times. I know I can add more ram but that doesn't seem to be the problem. I have also stopped unnecessary services at the os level.
Any other suggestions to fix this?
Thanks in advance.
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May 9, 2008
Hi there
I've managed to make it query that return a dataset that have 2 views utilising the "Filter" in RS. I treat this as a single record with multiple views.
Now let say if I have a stored precedure that pass 2 parameters one is called state and year and accepting 'ALL' for every possibility of State and Year and construct that into single dataset with 2 views similar like above.
How do I breakdown this in the reporting services so it will have paging?
This is a simple dataset:
RECORDID, ReportViewType, State, Year, VALUE
1, "VIEW1", "NSW", 1, null
1, "VIEW2", null, null, 10000
2, "VIEW1", "NSW", 2, null
2, "VIEW2", null, null, 11000
3, "VIEW1", "VIC", 1, null
3, "VIEW2", null, null, 11003
4, "VIEW1", "VIC", 2, null
4, "VIEW2", null, null, 11001
I would like to break down (paging) this per recordid. Each page obviosuly has 2 views using the same data set with different FILTER.
Do I need to put into a LIST then inside that list put 2 TABLES? Is this possible?!?!
Thanks
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Aug 2, 2006
I have created a stored proc for paging on a datalist which uses a objectDataSource.
I have a output param itemCount which should return the total rows. Them I am creating a temp table to fetch the records for each page request. My output param works fine if I comment out all the other select statements. But returns null with them. Any help would be appreciated.
CREATE PROCEDURE [dbo].[CMRC_PRODUCTS_GetListByCategory]( @categoryID int, @pageIndex INT, @numRows INT, @itemCount INT OUTPUT )AS
SELECT @itemCount= COUNT(*) FROM CMRC_Products where CMRC_Products.CategoryID=@categoryID Declare @startRowIndex INT; Declare @finishRowIndex INT; set @startRowIndex = ((@pageIndex -1) * @numRows) + 1; set @finishRowIndex = @pageIndex * @numRows
DECLARE @tCat TABLE (TID int identity(1,1),ProductID int, CategoryID int, SellerUserName varchar(100), ModelName varchar(100), Medium varchar(50),ProductImage varchar(100),UnitCost money,Description varchar(1500), CategoryName varchar(100), isActive bit,weight money)
INSERT INTO @tCat(ProductID, CategoryID,SellerUserName,ModelName,Medium,ProductImage,UnitCost,Description,CategoryName, isActive,weight)SELECT CMRC_Products.ProductID, CMRC_Products.CategoryID, CMRC_Products.SellerUserName, CMRC_Products.ModelName, CMRC_Products.Medium,CMRC_Products.ProductImage, CMRC_Products.UnitCost, CMRC_Products.Description, CMRC_Categories.CategoryName, CMRC_Products.isActive,CMRC_Products.weightFROM CMRC_Products INNER JOIN CMRC_Categories ON CMRC_Products.CategoryID = CMRC_Categories.CategoryIDWHERE (CMRC_Products.CategoryID = @categoryID) AND (CMRC_Products.isActive = 1)
SELECT ProductID, CategoryID,SellerUserName,ModelName,Medium,ProductImage,UnitCost,Description,CategoryName, isActive,weightFROM @tCat WHERE TID >= @startRowIndex AND TID <= @finishRowIndexGO
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Dec 13, 2006
I am using a stored procedure to page some objectsThe procedure looks like this:
CREATE PROCEDURE sw20aut.sw20_Kon( @sid_nr INT, @sid_stl INT = 35, @kid int )AS BEGIN SET NOCOUNT ON DECLARE @rader INT, @sid_antal INT, @ubound int, @lbound int SELECT @rader = COUNT(*), @sid_antal = COUNT(*) / @sid_stl FROM sw20aut.sw_kontakter WITH (NOLOCK) WHERE kund_id = @kid AND del = '0'
IF @rader % @sid_stl != 0 SET @sid_antal = @sid_antal + 1 IF @sid_nr < 1 SET @sid_nr = 1 IF @sid_nr > @sid_antal SET @sid_nr = @sid_antal SET @ubound = @sid_stl * @sid_nr IF(@sid_antal > 0) SET @lbound = @ubound - (@sid_stl - 1) ELSE SET @lbound = 0 SELECT CurrentPage = @sid_nr, TotalPages = @sid_antal, TotalRows = @rader
DECLARE @ename VARCHAR(64), @fname VARCHAR(64), @konid VARCHAR(64) SET ROWCOUNT @lbound SELECT @ename = enamn, @fname = fnamn, @konid = kon_id FROM sw20aut.sw_kontakter WITH (NOLOCK) WHERE kund_id = @kid AND del = '0' ORDER BY enamn, fnamn, kon_id SET ROWCOUNT @sid_stl SELECT kon_id, enamn, fnamn FROM sw20aut.sw_kontakter WITH (NOLOCK) WHERE enamn + fnamn + '~' + CAST(kon_id as VARCHAR(64)) >= @ename + @fname + '~' + @konid AND (kund_id = @kid AND del = '0') ORDER BY enamn, fnamn, kon_id SELECT startid = @konid SET ROWCOUNT 0END
The big problem is that i need to display objet with the same name. In my book the best identifier is the PK and therefor i have sorted as above by ordering after LastName, FirstName, ContactId
After som thinking ive reached the conclusion that this dont work if the idnumbers isnt of the same length. as long as they are(for example two people named John Smith, one with id = '23' and one with id = '87' it works. If there ids would have been '23' and '1203' it will not work correctly) of the same length it works fine.
What im wondering is if anyone have a good solution to this? Only thing i can think of is filling all idnumbers with zeros to equal length. Dont know how and if this will affect performance though. Anyone has a practical solution to this?
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Aug 8, 2007
Questoin
I am using Sql Server 2000.
I have a table named Cities which has more than 2600000 records.
I have to display the records for a specific city page wise.
I don't want to compromise with performance.
Can anyone has the idea?
Waiting for your fruitful response.
Happy Day And Night For All
Muhammad Zeeshanuddin Khan
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Feb 10, 2008
Hello To make pagination I would like to retrieve only the record from x to y ...I couldn't find how to do to in sql , I was thinking so if there is a way to do it with a sqldatasourceI make my request , put it in a sqldatasource and bind it to my datalistis there a way to "filter the sqldatasource ?" to make what I need ? Thx in advance ?
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May 23, 2005
Im in the process of trying to teach myself SqlServer, comming from Oracle. How the heck do I get the equivlent of %ROWNUM pseudo-column in SqlServer? Top just isn't doing it for me.
Oracle Example wrote:
Select * from foo where foo%ROWNUM > 10 and foo%ROWNUM <20;
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Feb 21, 2003
I have a paging dilema with an ADO/ASP web based application.
Currently I am using the temp table and inserted index method of paging which works well but the pages that use this paging have a variety of filters on them and a largish subset of data available. This means that every time the page is refreshed the code is creating that temporary table, inserting all the data, selecting the subset and then dropping it.
I was looking for a more efficent way of getting paged data to the client. One of the alternatives I came across was using a server side forward only cursor and the ado getrows() method. This sounds good in princible but I don't know if I am going to get a performance hit by using a server side cursor as opposed to sending the entire recorset to the client and letting it page the results.
Would it be any better to use a stored procedure and pass the full sql statement to it. I can't actually write the sql into the stored procedure becuase it is all totally dynamic.
So I guess I have three options, temp tables, server side cursor and small amounts of data sent to the client or client side cursor and large amounts of data sent to the client.
Any ideas or recomendations?
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Jan 5, 2007
Is this a correct statement? When commit Charge total (k) is greater than Physical Memory total (k) then the server is paging badly, correct?
thanks.
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Apr 25, 2008
Hi,
My application runs this query using a stored proc
SELECT empid1,name1,joindate from emp where empid2=3
union
select empid2,name2,joindate from emp where id1=3
Now I want to implement paging for the same using Row_Number so that I can display the results in pages.
Can someone please help me write a query for the same. I tried playing with Row_Number but no luck with it.Basically I am not good with SQL and I had programatically implemented paging in asp.net by looping through all records returned by the query.
Thanks,
Ganesh
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