Beginning with SAS^® 8, the compression attribute of a data set is preserved when a transport file is created with the CPORT procedure. By default, PROC CIMPORT will produce compressed data sets if the PROC CPORT file was created with compressed data sets.

PROC CIMPORT maintains the compression information and recreates the data set using this information. If SAS 8 is used to create the transport file, then PROC CIMPORT in SAS 8 or SAS 9 will maintain the compression.

SAS^® Version 6 did not make the compression information a part of the transport file. This means that recreating the data set with PROC CIMPORT in SAS 8 will create a data set without compression if the transport file was created with SAS Version 6. It can only maintain whatever attribute information is provided by the transport file.

Note: Beginning with SAS^® 9.4, a new COMPRESS= option was added to the PROC CIMPORT statement to enable you to specify compression independently of the CPORT operation. Compression can be specified for the target library using PROC CIMPORT. Values are COMPRESS= NO|YES|CHAR|BINARY.

Operating System and Release Information

Product Family	Product	System	Product Release		SAS Release
			Reported	Fixed*	Reported	Fixed*
SAS System	Base SAS	z/OS	9.4		9.4 TS1M0
		z/OS 64-bit	9.4		9.4 TS1M0
		Microsoft® Windows® for x64	9.4		9.4 TS1M0
		Microsoft Windows 8 Enterprise x64	9.4		9.4 TS1M0
		Microsoft Windows 8 Pro x64	9.4		9.4 TS1M0
		Microsoft Windows 8.1 Enterprise 32-bit	9.4		9.4 TS1M0
		Microsoft Windows 8.1 Enterprise x64	9.4		9.4 TS1M0
		Microsoft Windows 8.1 Pro 32-bit	9.4		9.4 TS1M0
		Microsoft Windows 8.1 Pro x64	9.4		9.4 TS1M0
		Microsoft Windows 10	9.4		9.4 TS1M0
		Microsoft Windows Server 2008 R2	9.4		9.4 TS1M0
		Microsoft Windows Server 2008 for x64	9.4		9.4 TS1M0
		Microsoft Windows Server 2012 Datacenter	9.4		9.4 TS1M0
		Microsoft Windows Server 2012 R2 Datacenter	9.4		9.4 TS1M0
		Microsoft Windows Server 2012 R2 Std	9.4		9.4 TS1M0
		Microsoft Windows Server 2012 Std	9.4		9.4 TS1M0
		Windows 7 Enterprise x64	9.4		9.4 TS1M0
		Windows 7 Professional x64	9.4		9.4 TS1M0
		64-bit Enabled AIX	9.4		9.4 TS1M0
		64-bit Enabled Solaris	9.4		9.4 TS1M0
		HP-UX IPF	9.4		9.4 TS1M0
		Linux for x64	9.4		9.4 TS1M0
		Solaris for x64	9.4		9.4 TS1M0

* For software releases that are not yet generally available, the Fixed Release is the software release in which the problem is planned to be fixed.

---

This note discusses how the CPORT and CIMPORT procedures handle compression of datasets.

Type:	Usage Note
Priority:
Topic:	SAS Reference ==> Procedures ==> CPORT

Date Modified:	2001-04-26 12:38:58
Date Created:	2001-04-10 16:17:27