Convert DataType being Passed to Stored Procedure

• AVB

  SSChampion

  Points: 11418

  More actions

  January 9, 2007 at 1:34 pm

  #114996

  I am passing a few values to a proc. The parameter is defined as a decimal within the proc. but the value being passed to the proc is a varchar. Is there a way to convert the datatype as it is being passed to the proc?

  I tried this and it didn't work:

  exec dbo.s_Proc @Param1 = convert(decimal(12,2),@ParamValue)

   

  The only way I can accomplish it so far is to convert it and set it to another variable and use that variable to pass to the proc.

  declare @Paramset @ParamValue2 = convert(decimal(12,2),@ParamValue)

  exec dbo.s_Proc @Param1= @ParamValue2

   

  Any suggestions? Thanks.

• Johan Bijnens

  SSC Guru

  Points: 135587

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  January 9, 2007 at 2:36 pm

  #682192

  - another reason to split presentation and data.

  - convert to the correct datatype asap !

  - always do some contenct-checking befor converting.

  declare @ParamValue2

  if ISNUMERIC(@ParamValue)

  begin

    set @ParamValue2 = convert(decimal(12,2),@ParamValue)

    exec dbo.s_Proc @Param1= @ParamValue2 

  end

  else

  begin

   raiseerror ('something is wrong')

    return (-1)

  end

  Johan
  
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