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SAS Interview Questions & Answers (basics)
Q1. Full form for SAS?
SAS means “Statistical Analysis Software”.
Q2. What is SAS System?
SAS system is an integrated system of software products that enables user to perform Data entry, retrieval, management, report writing and Graphics, Statistical and mathematical analysis, Business planning, forecasting and decision making, Operations research ams project management, quality improvements and application development.
Q3. What is SAS program?
A SAS program is a sequence of statements executed in order. Every SAS statement ends with a semicolon and the statement can be in upper-or lowercase letters.
Q4. How to grant writing access in SAS Studio?
SAS studio or SAS University edition may not have write access to SAs user directory. Write access to SASuser directory must be enable using the following code. proc options option=rsasuser; run; proc options option=rsasuser; run;
Q5. How to redirect SAS user folder?
SAS Interview Questions & Answers
Use LIBNAME statement to redirect SAS user folder.
Q6. What are SAS libraries?
In SAS, files like SAS Datasets and SAS views are stored in a folders called SAS Libraries.
Q7. List different default SAS libraries?
SASuser, SASHelp, Webwork and Work.
Q8. What are the different SAS libraries?
SAS libraries can be divided into two types depending on Database, they are dependent library and Independent library.
Q9. What are user defined SAS libraries?
User defined SAS libraries are the one created by User and they are two types Temporary and permanent libraries.
Q10. What is a SAS statement?
SAS statement is a type of SAS language element (or) a string of SAS keywords, SAS names, special characters and operations that instructs SAS to perform specific operations like ABORT, CALL, CONTINUE, DELETE, DO, DECLARE etc.
Q11. What is a DATA step?
A Data step is that which creates or modifies data using input data types like raw data or a SAS data set.
Q12. What is a PROC step?
PROC means procedure, PROC step analyses input data like SAS data set and produces output such as reports or an updated data set.
Q13. What are Global Statements in SAS?
Global statements are the one used anywhere in a SAS program and takes effect until it is changed, canceled or SAS session ends.
Q14. Which SAS statement is used to read an external raw data file to a DATA
Step?
Infile statement.
Q15. What are special input delimiters? Explain them?
DLM and DSD are the two special input delimiters used in the Infile statement. DSD option treats two delimiters
Q24. What are N and ERROR in SAS?
N is a data counter variables used to indicate the number of times that SAS has looped through the data step. ERROR is a implicit variable created by SAS during data processing. It gives the total number of records SAS has iterated in a dataset.
Q25. How SAS log messages “numeric values have been converted to
character”?
It implies that automatic conversion took place to make character function possible. SAS Tutorial ⊩ SAS Tutorial ⊩ SAS Basics ⊩ SAS - Creating Libraries ⊩ SAS - Program basics ⊩ SAS - Environment ⊩ SAS - Keyboard Shortcuts ⊩ SAS - Sample SAS program ⊩ SAS - Data Step Overview ⊩ SAS - Datasets Overview ⊩ SAS - What is Informat ⊩ SAS - What is Format ⊩ SAS - INFILE statement
