SAS INTERVIEWS CONCEPTUAL QUESTIONS XXVII

We have a SAS data set:

Product   Order_Date
A            13jan2015
               14jan2015
               15jan2015
               16jan2015
B             14jan2014
                17jan2015
C             20jan2014
                21jan2104
                22jan2014

W need the output like:

Product     Order_Date
A               13jan2015
A               14jan2015
A               15jan2015
A               16jan2015
B               14jan2014
B               17jan2015
C               20jan2014
C               21jan2104
C               22jan2014

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SAS INTERVIEWS CONCEPTUAL QUESTIONS XXVI

We have a SAS data sets in that we have 100 variables.
 We need to read only 50th and 8th variable to create another SAS Data sets.

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SAS INTERVIEWS CONCEPTUAL QUESTIONS XXV

We have two SAS data sets:

                        One                                            

Name	Age	Salary
Ram	27	5000
Sita	28	6000
Radha	21	3000
Arjun	20	8000
Ram	27	5000
Radha	21	3000
Arjun	20	8000
Sita	28	6000
Bhim	19	7000

                Two

Name	Age
Ram	27
Sita	28
Radha	21
Arjun	20
Bhim	19

We need to create a SAS data sets by merging SAS data sets one and two.

               Three

Name	Age	Salary
Bhim	19	7000
Arjun	20	8000
Radha	21	3000
Ram	27	5000
Sita	28	6000

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SAS INTERVIEWS CONCEPTUAL QUESTIONS XXIV

We have a SAS data Set:

              One

Name	Age
Ram	27
Sita	28
Radha	21
Arjun	20
Ram	27
Radha	21
Arjun	20
Sita	28
Bhim	19

Required Output:(We need to remove the duplicates without changing the order of the observations)

                Two

Name	Age
Ram	27
Sita	28
Radha	21
Arjun	20
Bhim	19

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