SAS Certification Prep Guide, 4th Edition

Initiating Generation Data Sets

Overview

To initiate generation data sets and to specify the maximum number of versions to maintain, you use the output data set option GENMAX= when creating or replacing a data set. If the data set already exists, you can use the GENMAX= option with the DATASETS procedure and the MODIFY statement.

General form, DATASETS procedure, and MODIFY statement with the GENMAX= option: PROC DATASETS LIB=libref <NOLIST>; MODIFY SAS-data-set (GENMAX=n); QUIT; Here is an explanation of the syntax: libref is the library that contains the data that you want to modify. NOLIST suppresses the directory listing. SAS-data-set is the name of the SAS data set that you want to modify. n is the number of historical ...