explain the difference between alternate key, business key, foreign key, generated key, primary key, retained key and surrogate key ? : Sas-di

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What is SAS?

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How would you generate 1000 observations from a normal distribution with a mean of 50 and standard deviation of 20. How would you use PROC CHART to look at the distribution? Describe the shape of the distribution.

1 Answers  

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Name and describe three SAS functions that you have used, if any?

2 Answers  

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how to perform paired t-test using Base/SAS & SAS/Stat?

2 Answers  

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Difference between SAS STATA & SPSS?

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What are the difference between ceil and floor functions in sas?

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If reading a variable length file with fixed input, how would you prevent SAS from reading the next record if the last variable didn’t have a value?

3 Answers   Accenture,

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How to get second top scorer student from a class- table having different sections A, B, C & D? each section has same number of student.

4 Answers   TCS,

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what are system option ? give few examples ? what are dataset options and dataset statements ? if there is a keep option and keep statement ? which one is executed first ? Difference between a WHERE statement and IF statement ? what is the advantage of using WHERE statement option on the dataset ?

1 Answers   Satyam,

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1.we can execute a macro with in a macro,by using call symput and symget can any one give me one example? 2.We can create the macro variables by using %let,%do,macro parameters,INTO clause in proc sql and call symput, can any one give me example to create macro variable with INTO clause and call symput? 3.

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what are input dataset and output dataset options?

6 Answers   HCL,

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