September 2004
Beginner to intermediate
388 pages
6h 34m
English
Content preview from PROC SQL: Beyond the Basics Using SAS®
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9.6. Undocumented PROC SQL Options
This section lists several undocumented PROC SQL options. Although undocumented options may be freely explored and used, you should carefully consider the ramifications before using them. Because of unannounced changes, possible removal, or nonsupport in future releases, you should exercise care when using them throughout SQL procedure applications. However, undocumented options provide a wealth of opportunities for identifying and resolving coding problems. The table below presents several of these undocumented SQL procedure options for troubleshooting and debugging purposes.
Undocumented PROC SQL Options
| Option | Description |
|---|---|
| _AGGR | displays a tree structure in the SAS log with a before-and-after summary. |
| _ASGN ... |
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