SAS 9.4 Language Reference, 6th Edition

Extended Observation Count

SAS 9.4 enhances the functionality to extend the observation count by automatically

creating a 32-bit SAS data file with an extended observation count and by providing the

EXTENDOBSCOUNTER= system option. In SAS 9.4, the EXTENDOBSCOUNTER=

data set option, LIBNAME statement option, and system option are, by default, set to

YES. See “Understanding the Observation Count in a SAS Data File” on page 618.

Cross-Environment Data Access (CEDA)

Under cross-environment data access (CEDA), extended attributes can be read but

cannot be updated.

In SAS 9.4M5, CEDA is supported by the SAS Scalable Performance Data Engine (SPD

Engine), with some additional restrictions.

See Chapter 34, “Processing Data Using Cross-Environment Data Access (CEDA),” on

page 715.

SMTP Email Authentication Protocol

The SMTP email server authentication protocol is enhanced to look for a user ID that is

specified by the EMAILHOST= system option.

LOCKDOWN State Restrictions

The LOCKDOWN statement and LOCKDOWN system option are new in SAS 9.4M1.

With LOCKDOWN, if you are running in a client/server environment, the SAS server

administrator can limit access to directories and files. In addition to there being

restrictions on directories and files, several language elements are not available when

SAS is in a locked-down state.

See “SAS Processing Restrictions for Servers in a Locked-Down State” on page 17.

LOCKDOWN Statement Enhancements

In SAS 9.4M2, the LOCKDOWN statement is enhanced so that certain access methods

and their related procedures are disabled by default when a SAS session is locked down.

The LOCKDOWN ENABLE_AMS= option is also new in SAS 9.4M2. This statement

allows administrators to re-enable access methods and procedures that are disabled by

default when LOCKDOWN is in effect. See “SAS Processing Restrictions for Servers in

a Locked-Down State” on page 17.

Data File Protection

SAS 9.4 supports Advanced Encryption Standard (AES) encryption. AES encryption

produces a stronger encryption by using a key value. See “AES Encryption” on page

739.

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