NULLCHAR= Data Set Option

Indicates how missing SAS character values are handled during insert, update, DBINDEX=, and DBKEY= processing.
Valid in: DATA and PROC steps (when accessing DBMS data using SAS/ACCESS software)
Default: SAS
See: NULLCHAR= data set option in SAS/ACCESS for Relational Databases: Reference

Syntax

NULLCHAR= SAS | YES | NO