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Using ROW_COUNT


Using ROW_COUNT

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mark.dungey 56406
mark.dungey 56406
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Hi Below is the code for my stored procedure


Alter proc [dbo].[InvoiceDisplayTest] (@InvoiceNumber nvarchar(50),@InvoiceDate datetime ,@InvoiceDate1 datetime, @AccountNumber nvarchar(50),@TradingPartnerID nvarchar(50),@Page nvarchar(50),@rownum int OUTPUT)
AS
BEGIN
SELECT * FROM (SELECT InvoiceID,DocumentNumber, convert(char(12),DocumentDate,112) AS DocumentDate,AccountNumber,Supplier,TradingPartnerID,


ROW_NUMBER()OVER(ORDER BY DocumentNumber ASC)AS rowno FROM InvoiceHeader

WHERE (@InvoiceNumber = '' OR DocumentNumber = @InvoiceNumber)
and
(@AccountNumber = '' or AccountNumber = @AccountNumber)
and
(@TradingPartnerID = '' or TradingPartnerID = @TradingPartnerID)
and
(@InvoiceDate = '' or DocumentDate >= @InvoiceDate
and
DocumentDate <=@InvoiceDate1 or @InvoiceDate1 = '')
)As qr
WHERE rowno BETWEEN ((@Page - 1) * 20 + 1)
AND (@Page * 20)

END


My Question is how do I SET my @rownum OUTPUT parameter equal to the total rows for the inner select statement. As the rows for the whole query only counts the ones being displayed. Cant i just use the alias of my ROW_NUMBER() to get the total rows. Or another way.
Looking foward to hearing from you

Mark
Lynn Pettis
Lynn Pettis
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Give this a try:



Alter proc [dbo].[InvoiceDisplayTest] (
@InvoiceNumber nvarchar(50),
@InvoiceDate datetime ,
@InvoiceDate1 datetime,
@AccountNumber nvarchar(50),
@TradingPartnerID nvarchar(50),
@Page nvarchar(50),
@rownum int OUTPUT)
AS
BEGIN
SELECT *
FROM (SELECT InvoiceID,DocumentNumber, convert(char(12),DocumentDate,112) AS DocumentDate,AccountNumber,Supplier,TradingPartnerID,
ROW_NUMBER()OVER(ORDER BY DocumentNumber ASC)AS rowno
FROM InvoiceHeader
WHERE
(@InvoiceNumber = '' OR DocumentNumber = @InvoiceNumber)
and (@AccountNumber = '' or AccountNumber = @AccountNumber)
and (@TradingPartnerID = '' or TradingPartnerID = @TradingPartnerID)
and (@InvoiceDate = '' or DocumentDate >= @InvoiceDate
and DocumentDate <=@InvoiceDate1 or @InvoiceDate1 = '')
)As qr
WHERE
rowno BETWEEN ((@Page - 1) * 20 + 1)
AND (@Page * 20)

SET @rownum = @@rowcount;

END




Cool
Lynn Pettis

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mark.dungey 56406
mark.dungey 56406
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Hi thanks for the reply. Unfortunately that just returns the row count of the rows that i have asked for i.e always 20 as thats the limit i've set. Any other suggestions:-D
Mark Cowne
Mark Cowne
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May not be what you're after, but you can return an additional column with the total row count


Alter proc [dbo].[InvoiceDisplayTest] (@InvoiceNumber nvarchar(50),@InvoiceDate datetime ,@InvoiceDate1 datetime, @AccountNumber nvarchar(50),@TradingPartnerID nvarchar(50),@Page nvarchar(50),@rownum int OUTPUT)
AS
BEGIN
SELECT * FROM (SELECT InvoiceID,DocumentNumber, convert(char(12),DocumentDate,112) AS DocumentDate,AccountNumber,Supplier,TradingPartnerID,

ROW_NUMBER()OVER(ORDER BY DocumentNumber ASC)AS rowno,

COUNT(*) OVER() AS TotalRows

FROM InvoiceHeader

WHERE (@InvoiceNumber = '' OR DocumentNumber = @InvoiceNumber)
and
(@AccountNumber = '' or AccountNumber = @AccountNumber)
and
(@TradingPartnerID = '' or TradingPartnerID = @TradingPartnerID)
and
(@InvoiceDate = '' or DocumentDate >= @InvoiceDate
and
DocumentDate <=@InvoiceDate1 or @InvoiceDate1 = '')
)As qr
WHERE rowno BETWEEN ((@Page - 1) * 20 + 1)
AND (@Page * 20)

END



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mark.dungey 56406
mark.dungey 56406
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Nope thats absolutely fine. I just wanted a way to return the total number of rows to php for pagination. Perfect thanks very much
GilaMonster
GilaMonster
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You might also want to have a read through this: http://sqlinthewild.co.za/index.php/2009/03/19/catch-all-queries/


Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

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