Comments on: ColdFusion – SQLServer JDBC Driver Unsupported data conversion

By: Mike Stemle

Mike Stemle — Wed, 27 Oct 2010 15:00:53 +0000

I did use explicit column selection.

How is this cache cleared? Is it necessary to bounce the coldfusion process for this to reset?

By: Jonas

Jonas — Wed, 27 Oct 2010 14:48:03 +0000

Mike,
if you change the data type of one of the columns maybe.
This is definatley cfquery caching.

If you remove the ; it will use the old cached version so that might be what you're experiencing.

Rule of thumb:
Use and explicit column selection.

By: Mike Stemle

Mike Stemle — Wed, 27 Oct 2010 14:33:58 +0000

I don't know if I agree that this is caching though… if it were, wouldn't you be able to remove the semicolon after the first execution of the query?

It seems like ANY change to the SQL alleviates the error, though I'm not sure that caching is the cause for sure. This isn't just for "select *" queries, I just had it happen to me on a query wherein I was grabbing one specific column from my query.

I found that reversing the order of the items in the where clause also helped.

By: Frederick

Frederick — Fri, 08 Oct 2010 16:46:25 +0000

Bless you for posting this. You saved me a ton of time.

By: Gin

Gin — Tue, 30 Jun 2009 11:24:49 +0000

Thanks a lot! You save my time.

By: Jonas

Jonas — Thu, 23 Apr 2009 12:39:49 +0000

The solution is to put all the columns you want in the column list instead of doing a *.
It's bad practise to throw in a * anyways and can produce unexpected results in your code.

By: Jason

Jason — Thu, 26 Mar 2009 12:01:28 +0000

Ah nice! Yeah I run into this all the time and always assumed the caching somewhere and have always resolved it by restarting my cf service. Typing a semicolon is a it faster isn't it?