Answer / ujas patel

_Null_ is usefull only When u want to use Datastep without
actually creating a SAS dataset.A set statement specifies
the SAS dataset that you want to read from.

Data _null;
Set Clinic.stress;

Answer / ganesh

This is used for when you dont want any output and u want
to save your time i will not gives u results but the
message can be displayed inthe log.

Answer / sunny

Data _null_ is also used to produce complex reports which cannot be customized in proc report.Proc doesnt allow us to use if statements where in data null we can use if statements to get the desired output.For example if you want multiple sub totals or if you want to print footnote only at the end of a page break.This is useful specially for pdf reports.

Answer / harish

sas variable to count no of observation to read

What is the difference between %local and %global?

1 Answers  

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what are scrubing procedures in SAS?

1 Answers   Oracle,

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how do you derive descriptive statistics?

1 Answers   Accenture, Quintiles,

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what is Global Symbol table and Local symbol table?

4 Answers   CitiGroup,

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Hi... this is chandu, did MSc Microbiology, trying to get job in SAS tool, PLZ Tell me whether IT industries will give consider my education to gain a job....?

2 Answers  

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What does a PROC TRANSPOSE do?

8 Answers   Accenture,

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how can you improve the performance of a query, If it is excuting very slowly?

2 Answers   Zensar,

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Which of the following is not created during compilation phase?

2 Answers   SAS,

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Could you please answers for this. 1.Code the tables statement for a single-level (most common) frequency. 2.Code the tables statement to produce a multi-level frequency.

2 Answers  

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What is difference between (a-z) and (a--z)

8 Answers   Accenture,

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Given an unsorted data set, how to read the last observation to a new data set?

0 Answers  

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what are the different ways of merging two datasets.name atleast 4.

2 Answers  

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