You might experience slow response times from SAS^® Real-Time Decision Manager when accessing VARCHAR2 bind variables from Oracle tables via SAS^® Federation Server.

When querying VARCHAR2 bind variables from Oracle tables with the SAS Federation Server, this column is cast as NVARCHAR2 variables and existing table indexes cannot be used. This behavior can cause performance issues. 

There is no workaround from SAS, but an Oracle database administrator can create a function-based index.

Click the Hot Fix tab in this note to access the hot fix for this issue.

Operating System and Release Information

Product Family	Product	System	Product Release		SAS Release
			Reported	Fixed*	Reported	Fixed*
SAS System	SAS Federation Server	Solaris for x64	4.2	4.2		9.4 TS1M7
		Linux for x64	4.2	4.2		9.4 TS1M7
		HP-UX IPF	4.2	4.2		9.4 TS1M7
		64-bit Enabled Solaris	4.2	4.2		9.4 TS1M7
		64-bit Enabled AIX	4.2	4.2		9.4 TS1M7
		Microsoft® Windows® for x64	4.2	4.2		9.4 TS1M7

* 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.

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Viya on Linux: An update for this issue is available for SAS Viya 3.5. For instructions on how to access and apply software updates, see the Updating Your SAS Viya software section in the SAS Viya 3.5 for Linux Deployment Guide at

http://documentation.sas.com/?softwareId=administration&softwareVersion=3.5&softwareContextId=softwareUpdates

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A fix for this issue for SAS Threaded Kernel Extension for Oracle 9.44 is available at:

https://tshf.sas.com/techsup/download/hotfix/HF2/J1E.html#66899

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A fix for this issue for SAS Federation Server 4.2 is available at:

https://tshf.sas.com/techsup/download/hotfix/HF2/Y46.html#66899

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SAS® Real-Time Decision Manager uses PROC DS2 code. When accessing Oracle VARCHAR2 bind variables from SAS Real-Time Decision Manager, SAS® Federation Server casts this column as NVARCHAR2 variables and existing table indexes cannot be used.

Type:	Problem Note
Priority:	high

Date Modified:	2020-11-18 13:35:05
Date Created:	2020-11-05 15:10:36