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asked on 4/27/2006

Calling the same function twice in a select statement

Hi Gang,

I have a function that I need to call twice in a Stored Procedure. For example,

Select
dbo.calcFundValuation(@sFundID),
dbo.calcFundValuation(@sFundID) * @fExchangeRate
From
...

My question:
- When I execute the stored procedure, is SQL Server smart enough to call the function only once? I'm worried about the performance hit if the function gets called twice.

Thanks,
DM

Microsoft SQL Server

Last Comment

4/27/2006

4/27/2006

Try this

declare @numVal numeric(5,2)

Set @numVal = dbo.calcFundValuation(@sFundID)

Select
@numVal,
@numVal * @fExchangeRate
From
...

4/27/2006

You need to store the value somewhere first

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4/27/2006

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4/27/2006

Thanks aneeshattingal for the knowledge :)

Microsoft SQL Server

Microsoft SQL Server is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.SQL Server is available in multiple versions, typically identified by release year, and versions are subdivided into editions to distinguish between product functionality. Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning.

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