topic The advantage of proc ds2 compared to data step and sas macro in SAS Programming

The advantage of proc ds2 compared to data step and sas macro

LineMoon — Tue, 15 Mar 2016 13:18:50 GMT

Hello,

Please, I want to know the avantage of proc ds2 compared to to data step and sas macro.

Thank you

Re: The avantage of proc ds2 compared to data step and sas macro

LinusH — Sun, 13 Mar 2016 16:26:05 GMT

DS2 can run in parallel and offers more flexibility than the traditional data step. Like possibility to define range of different data types, and nest SQL within the data step. DS2 is also used whith SAS in-database technology.
Hard to compare with macro. Perhaps the flexibility in DS2 will make some macro scenarios obsolete.
Like always, it's easier to compare when you have an actual use case.
Meanwhile, search support.sas.com for papers on the subject.

Re: The avantage of proc ds2 compared to data step and sas macro

LineMoon — Sun, 13 Mar 2016 17:41:49 GMT

Thank you for your answer.

You say " to define range of different data types, and nest SQL within the data step"

Intersting, Could you give some exemples ?

Re: The avantage of proc ds2 compared to data step and sas macro

LinusH — Sun, 13 Mar 2016 20:46:01 GMT

Please do your own research given the hints in my previous post. It's not hard to find...

Re: The avantage of proc ds2 compared to data step and sas macro

Paul_OldenKamp_org — Mon, 14 Mar 2016 20:53:56 GMT

You might want to look up "The DS2 Procedure: SAS Programming Methods at Work" by Peter Eberhardt and published by SAS.

It's available now on the O'Reilly Safari Books On-line even though the publish date listed there is 18Mar2016.

Paul

Re: The advantage of proc ds2 compared to data step and sas macro

ballardw — Tue, 15 Mar 2016 15:09:07 GMT

SAS Macro language should not be considered in this comparison. The macro language generates text that is not specific to the data step.