In SAS/ACCESS Interface to Oracle, when you use the MULTI_DATASRC_OPT=IN_CLAUSE option in a LIBNAME statement, you might notice slow performance. Ordinarily, this option can be used to improve performance, such as when you are processing a join between two data sources (for example, when joining a SAS data set with an Oracle table).

However, the MULTI_DATASRC_OPT=IN_CLAUSE has a 32-KB character limit for the list of values that can be passed to Oracle in an IN_Clause. As a result, when the character limit is exceeded, performance becomes slow.

To work around this issue, create a temporary Oracle table from a SAS data set and let Oracle process the join.

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/ACCESS Interface to Oracle	Microsoft® Windows® for x64	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Microsoft Windows 8 Enterprise 32-bit	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Microsoft Windows 8 Enterprise x64	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Microsoft Windows 8 Pro 32-bit	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Microsoft Windows 8 Pro x64	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Microsoft Windows 8.1 Enterprise 32-bit	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Microsoft Windows 8.1 Enterprise x64	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Microsoft Windows 8.1 Pro	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Microsoft Windows 8.1 Pro 32-bit	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Microsoft Windows Server 2003 Datacenter Edition	9.3		9.3 TS1M2
		Microsoft Windows Server 2003 Enterprise Edition	9.3		9.3 TS1M2
		Microsoft Windows Server 2003 Standard Edition	9.3		9.3 TS1M2
		Microsoft Windows Server 2003 for x64	9.3		9.3 TS1M2
		Microsoft Windows Server 2008	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Microsoft Windows Server 2008 R2	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Microsoft Windows Server 2008 for x64	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Microsoft Windows Server 2012 Datacenter	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Microsoft Windows Server 2012 R2 Datacenter	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Microsoft Windows Server 2012 R2 Std	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Microsoft Windows Server 2012 Std	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Microsoft Windows XP Professional	9.3		9.3 TS1M2
		Windows 7 Enterprise 32 bit	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Windows 7 Enterprise x64	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Windows 7 Home Premium 32 bit	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Windows 7 Home Premium x64	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Windows 7 Professional 32 bit	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Windows 7 Professional x64	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Windows 7 Ultimate 32 bit	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Windows 7 Ultimate x64	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Windows Vista	9.3		9.3 TS1M2
		Windows Vista for x64	9.3		9.3 TS1M2
		64-bit Enabled AIX	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		64-bit Enabled HP-UX	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		64-bit Enabled Solaris	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		HP-UX IPF	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Linux	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Linux for x64	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2
		Solaris for x64	9.3	9.4_M2	9.3 TS1M2	9.4 TS1M2

* 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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A fix for this issue for Base SAS 9.3_M2 is available at:

https://tshf.sas.com/techsup/download/hotfix/HF2/I22.html#53851

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There is 32-KB character limit for the list of values passed to Oracle with the MULTI_DATASRC_OPT=IN_CLAUSE. Exceeding this limit causes poor performance in SAS/ACCESS® Interface to Oracle.

Type:	Problem Note
Priority:	high
Topic:	Data Management ==> Data Sources ==> External Databases ==> Oracle

Date Modified:	2015-11-05 15:59:15
Date Created:	2014-08-05 11:34:29