Explain the data stage in SAS.

[armdrejoan]

The Data step creates a SAS dataset that contains the data along with a "data dictionary." The data dictionary contains information about the variables and their properties.

What is VAT?
The logical area in memory is represented by the PDV or program data vector. SAS currently creates the database one observation at a time. During compilation, an input buffer is created that stores the record from the external file. The PDV is created after the input buffer is created.

SAS Interview Questions and Answers
SAS Interview Questions and Answers
6) What types of data does SAS contain?
Data types in SAS are numeric and character.

7) Which operator does not perform automatic canada consumer mobile number list conversions when comparing?
In SAS, the "where" operator does not perform automatic transformations when comparing.

8) What is the method to debug and test your SAS program?
You can debug and test your SAS program using Obs=0 and system parameters to trace the program execution in the log.

9) What is the difference between nodupkey and nodup options?
The difference between NODUP and NODUPKEY is that NODUP compares all the variables in our dataset, while NODUPKEY compares only the BY variables.

10) Name checking tools used in SAS.
For dataset: Dataset name/debug Dataset: Name/stmtchk
For SAS macro variables: Options: mprint mlogicsymbolgen

11) What does PROC print and what does the contents of PROC do?
The PROC print is used to display the contents of a SAS data set and also to ensure that the data is read correctly into SAS. While PROC CONTENTS displays information about the SAS data set.