Sybase support environment variables in DataStage

These environment variables are concerned with setting up access to Sybase databases from DataStage®.

APT_SYBASE_NULL_AS_EMPTY environment variable in DataStage

Set the APT_SYBASE_NULL_AS_EMPTY environment variable to 1 to extract null values as empty, and to load null values as " " when reading or writing an IQ database.

APT_SYBASE_PRESERVE_BLANKS environment variable in DataStage

Set the APT_SYBASE_PRESERVE_BLANKS environment variable to preserve trailing blanks while writing to an IQ database.