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optional paramenters in a procedure

i want to have optional paremeters in the procedure. I want give a user an oppurtunity to enter a one single day or a date range. Like the paremeter being 07/05/2011 or a date range of 07-05-2011 to 07-10-2011, is there a way that i can do it ?

  create procedure deletedata
     @transactionalday varchar 

  begin 
  as

     delete  from atable where transactionalday = @transactionalday

   go
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asked Sep 30, 2011 at 12:35 PM in Default

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Katie 1
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2 answers: sort voted first

Just specify the default value for each parameter in the declaration...

 create proc deletedata
   @transactionalday varchar = null,
   @beginrange datetime = null,
   @endrange datetime = null,
 AS

use them appropriately in the code...

 if @transactionalday is null
 begin
     delete from atable where transactionalday between @beginrange and @endrange;
   end
 else
   begin
     delete from atable where transactionalday = @transactionalday;
   end

then call the procedure using the named parameters...

 exec deletedata @transactionalday = 'mytransactionalday';

or

 exec deletedata @begindate = mybeginningdate, @enddate = myendingdate;
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answered Sep 30, 2011 at 02:59 PM

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KenJ
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Yes you can. Just add "= " for each optional parameter:

 create procedure deletedata
 @transactionalday varchar = '20110705'

as

begin

 delete  from atable where transactionalday = @transactionalday

end

go

When you call it you can specify a value for the optional params but if you don't their default value will be used instead.

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answered Sep 30, 2011 at 03:05 PM

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David Wimbush
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asked: Sep 30, 2011 at 12:35 PM

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Last Updated: Sep 30, 2011 at 01:08 PM

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