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  1.  Home
  2. JAVA400-L
  3. November 2011

RE: QueryCloseImplicit - On V6R1

An APAR is the equivalent of a bug report. My guess is that "APARable situation" is a case where you should file a bug report because the JDBC code is not behaving as expected. In other words, there's an error being thrown that isn't per spec.

-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx [mailto:java400-l-bounces@xxxxxxxxxxxx] On Behalf Of Hockchai Lim
Sent: Wednesday, November 02, 2011 8:50 AM
To: java400-l@xxxxxxxxxxxx
Subject: QueryCloseImplicit - On V6R1

Our shop is in the process of upgrading our V5R4 OS to the V7R1.

When reviewing V6R1 memo to user, I see this:

New QueryCloseImplicit JDBC connection property This release introduces performance improvements, including the new native JDBC driver connection property, QueryCloseImplicit. By default, this new property will be enabled.
Using this new QueryCloseImplicit property provides significant performance improvement for many applications that use native JDBC to query the System i database.
Although it is unlikely, with this new connection attribute, applications might see slightly different semantics in certain error scenarios. These error scenarios are APARable situations with or without the new function. With the new function, the error on the CLOSE call, which should never happen except in Chapter 2. i5/OS operating system 37 APARable situations, is reported on the ResultSet next() method call in addition to the ResultSet close() method to the JDBC application. Without the new function, the error is only returned on the ResultSet
close() method.


Did anyone ever encounter any problem due to above enhancement? Also, does anyone know what is "APARable situations" means?

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