How to Prepare Your Data Sets
Determining the Structure and Contents of the Data Sets
To help determine how
your data is related, look at the structure of the data sets. To see
the structure, use the DATASETS procedure. To display the descriptor
information, use the CONTENTS procedure. Descriptor information includes
the number of rows in each data set, the name and attributes of each
column, and an alphabetic list of extended attributes (including data
set and column extended attributes). To print a sample of the rows,
use the PRINT procedure or the REPORT procedure.
Testing Your Program
Create small temporary
data sets that contain a sample of rows that test all of your program's
logic. If your logic is faulty and you get unexpected output, you
can debug your program.
Looking at Sources of Common Problems
If your program does
not run correctly, review your input data for the following errors:
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columns that have the same name but that represent different dataTo correct the error, you can rename columns before you combine the data sets by using the RENAME= table option in the SET or MERGE statement. As an alternative, use the DATASETS procedure to display all library management functions for all member types (except catalogs).
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common columns that have the same data but different attributes
Last updated: January 10, 2018
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