Comments on: Incorrect syntax near ‘0′ – Don’t Shoot the Messenger!

By: fgwenger

fgwenger — Fri, 12 Feb 2010 22:35:23 +0000

Some CF8 update silently put “0″ into the validation query field for our datasources, so we were pounding Oracle with new connections (plus the bad validation queries). I couldn’t find anything when I searched on it. Here is the error text (hoping google will pick up this text for the next person who has the problem):

Error Executing Database Query. Io exception: The Network Adapter could not establish the connection

java.sql.SQLException: Io exception: The Network Adapter could not establish the connection at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134) at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179) at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:333) at oracle.jdbc.driver.OracleConnection.(OracleConnection.java:404) at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:468) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:314) at coldfusion.server.j2ee.sql.pool.JDBCPool.createPhysicalConnection(JDBCPool.java:589) at coldfusion.server.j2ee.sql.pool.ConnectionRunner$RunnableConnection.run(ConnectionRunner.java:67) at java.lang.Thread.run(Thread.java:619)

Thanks.

By: Abhijeet

Abhijeet — Thu, 17 Jul 2008 00:00:00 +0000

Mike, just curious to know the test case you have used to surface this defect that was not always reproducible. Specially when Daryl, also could not figure it out.

Abhijeet
http://www.lifeiscolourful.com

By: Daryl Banttari

Daryl Banttari — Fri, 01 Feb 2008 00:00:00 +0000

Thanks, Mike! Hope Adobe is treating you well.

By: Mike Collins

Mike Collins — Thu, 31 Jan 2008 00:00:00 +0000

I entered this as an issue. 71202.

By: Dan G. Switzer, II

Dan G. Switzer, II — Wed, 30 Jan 2008 00:00:00 +0000

@Daryl:

Thanks for the good information. I’ve confirmed that setting the validation query on my datasource has resolved the "Incorrect syntax near ‘0′" messages I was getting.

I blogged about this and the "Auto-generated keys were not requested" issues. I think these are both important issues for CF8 developers to be aware of:

http://blog.pengoworks.com/index.cfm/2008/1/30/Two-important-CF8-bugsissues-detailed-yesterday

By: Daryl Banttari

Daryl Banttari — Wed, 30 Jan 2008 00:00:00 +0000

Thanks, Dan. And yeah, for most users, "Validation Query" should be blank. (If you don’t have problems with orphaned connections, there’s no reason to run an extra query for every page, even if it is trivial.)

By: Dan G. Switzer, II

Dan G. Switzer, II — Tue, 29 Jan 2008 00:00:00 +0000

@Daryl:

What should the validation query be set to if you don’t want to use the feature? I just checked and it looks like all my queries are set to 0. Is there a way to completely disable this feature? I would assume leaving it blank would prevent it from running, but might this just cause errors?

By: Dan G. Switzer, II

Dan G. Switzer, II — Tue, 29 Jan 2008 00:00:00 +0000

I just went through all of my datasources. All of the datasources that were either migrated or added during the CF8 installation had the "validation query" set to "0".

Any of the datasources I created after the installation had blank "validation query" settings.