16547 - Correlated subqueries using column aliases may not be passed to your dbms when using SAS/ACCESS LIBNAME statement

Problem Note 16547: Correlated subqueries using column aliases may not be passed to your dbms when using SAS/ACCESS LIBNAME statement

PROC SQL queries containing correlated subqueries may not be passed to the dbms with implicit passthru. An example of such a query is:

proc sql; select prodname as products, count(distinct custname) as cound from dbmslib.invoice as i1 group by prodname having (select sum(invqty) from invoice where prodname=i1.prodname) > 30 order by 1,2; quit;

You SAS code may also generate dbms-specific error messages due to column aliases incorrectly appearing in conditional expressions. For example, with the following query:

proc sql; select a.name as nalias, a.sex from kw.t1 a, kw.t1 b where a.sex='F' and a.name in (select name from kw.t1 c where a.name=c.name) and a.sex='F';

PROC SQL passes the following query to the dbms:

select a."NAME" as nalias, a."SEX" from T1 a, T1 b where a."NAME" in (select c."NAME" from T1 c where nalias = c."NAME" ) and (a."SEX" = 'F')

You will see the following error when this query is run against an Oracle database. Various other databases will generate similar errors.

ERROR: ORACLE prepare error: ORA-00904: "NALIAS": invalid identifier. SQL statement: select a."NAME" as nalias, a."SEX" from T1 a, T1 b where a"NAME" in (select c."NAME" from T1 c where nalias = c."NAME") and (a."SEX" = 'F')

The alias 'nalias' appearing in the subquery is incorrect. There currently is no circumvention for this problem.

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

Operating System and Release Information

Product Family	Product	System	SAS Release
Product Family	Product	System	Reported	Fixed*
SAS System	Base SAS	Microsoft Windows XP Professional	9.1 TS1M3
		Microsoft® Windows® for 64-Bit Itanium-based Systems	9.1 TS1M3
		Microsoft Windows XP 64-bit Edition	9.1 TS1M3
		Microsoft Windows NT Workstation	9.1 TS1M3
		Microsoft Windows Server 2003 Standard Edition	9.1 TS1M3
		Microsoft Windows Server 2003 Datacenter Edition	9.1 TS1M3
		Microsoft Windows Server 2003 Enterprise Edition	9.1 TS1M3
		Microsoft Windows 2000 Datacenter Server	9.1 TS1M3
		Microsoft Windows 2000 Professional	9.1 TS1M3
		Microsoft Windows 2000 Server	9.1 TS1M3
		z/OS	9.1 TS1M3
		64-bit Enabled Solaris	9.1 TS1M3
		Microsoft Windows 2000 Advanced Server	9.1 TS1M3
		Linux	9.1 TS1M3
		Linux on Itanium	9.1 TS1M3
		HP-UX IPF	9.1 TS1M3
		64-bit Enabled HP-UX	9.1 TS1M3
		OpenVMS Alpha	9.1 TS1M3
		64-bit Enabled AIX	9.1 TS1M3
		Tru64 UNIX	9.1 TS1M3

* 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.

Type:	Problem Note
Priority:	medium
Topic:	SAS Reference ==> Procedures ==> SQL SAS Reference ==> SQL

Date Modified:	2007-04-17 17:29:29
Date Created:	2005-11-17 11:42:06

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Problem Note 16547: Correlated subqueries using column aliases may not be passed to your dbms when using SAS/ACCESS LIBNAME statement

Operating System and Release Information