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| Using SAS Engines |
Overview of the TAPE Engine under OpenVMS
| Differences between the SAS Engine and the TAPE Engine |
In contrast to the SAS engine, the TAPE engine does not support indexing and compression of observations.
| When to Use the TAPE Engine |
Use the TAPE engine to create sequential-format SAS libraries on disk and to access files in sequential libraries. The primary purpose of this engine is to enable you to back up your SAS data sets, catalogs, or whole libraries. With this engine, it is possible to back up applications that contain both SAS data sets and SAS catalogs.
| Limitations of the TAPE Engine |
The TAPE engine has the following limitations:
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Because the TAPE engine is a sequential engine, it cannot be used with the POINT= option of the SET statement nor with the FSBROWSE, FSEDIT, and FSVIEW procedures. If you want to use these features of the SAS language with sequential SAS data sets, then use the COPY procedure to copy them to a disk-format SAS library.
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In a single DATA step or PROC step, you can use only one SAS data set from a particular sequential SAS library.
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Copyright © 2009 by SAS Institute Inc., Cary, NC, USA. All rights reserved.