Count the rows SQL Server 2005

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Count the rows SQL Server 2005

WangcChiKaBastar

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March 22, 2010 at 1:36 am

#220171

I have to write a sp that would give two data sets one with the coumns (metadata) like firstname, lastname, address, phonenumber
and then second result set would return just the count of the rows
count(*) of the above select
please advise

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Dave Ballantyne SSC-Dedicated Points: 33667 More actions · Answer 1

have a look at @@rowcount in BOL (Books On Line) http://msdn.microsoft.com/en-us/library/ms187316.aspx

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The Dixie Flatline SSC Guru Points: 53354 More actions · Answer 2

Dave's right. Here's a good practice tip:

@@ROWCOUNT changes with each new SET or SELECT, so if you want to hold on to the value for a while, be sure to store it in the variable of your choice.

-- always returns a @@ROWCOUNT of 1, because of the SET statement

declare @DoNothing int

select name from sys.databases

SET @DoNothing = 1

select @@ROWCOUNT as rowsReturned

go

-- saves the rowcount in @rc for later reference

declare @rc int

declare @DoNothing int

select name from sys.databases

SET @rc = @@ROWCOUNT -- save for later

set @DoNothing = 1

select @rc as rowsReturned

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SQLRNNR SSC Guru Points: 281334 More actions · Answer 3

Nice sample and explanation Dave and Bob.

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Paul White SSC Guru Points: 150468 More actions · Answer 4

WangcChiKaBastar (3/22/2010)
I have to write a sp that would give two data sets...

It is usually more efficient to just return one data set, and return the row count in an output parameter.

Paul White
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@SQL_Kiwi

The Dixie Flatline SSC Guru Points: 53354 More actions · Answer 5

True, but then you create headaches for the poor, struggling UI developer who has to learn how to handle two different types of output from a single procedure. 😉

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Against stupidity the gods themselves contend in vain. -- Friedrich Schiller
Stop, children, what's that sound? Everybody look what's going down. -- Stephen Stills

Paul White SSC Guru Points: 150468 More actions · Answer 6

The Dixie Flatline (3/23/2010)
True, but then you create headaches for the poor, struggling UI developer who has to learn how to handle two different types of output from a single procedure. 😉

In my experience, UI developers are happier* to learn about OUTPUT parameters than to use MARS.

Turning a parameter into an OUTPUT parameter generally involves just specifying its direction in an existing .NET statement.

* = also, if they want to use my database, they will do it my way :laugh: :laugh: :laugh:

Paul White
All articles available on SQL.kiwi
@SQL_Kiwi