Error: Specified Cast is not valid

digitalage · January 30, 2006 12:28PM

When I compare 2 databases I get an error that says "Specified cast is not valid", with a caption of "Unknown". I originally received this error with the 3.x version of the software, and I thought it was related to my upgrade to SQL Server 2005. At that time, I rebuilt one of my databases from my source scripts, tried it again, and everything seemed to work - the problem went away, so I'm not sure if it had anyhting to do with 2005. But now, I just upgraded to the 4.1 version, and the error is back. I tried the same trick as last time (i.e. rebuilt my DB from source scripts) but this time the error is not going away. Like I said, I'm using the SQL Compare 4.1 version (which I just downloaded) and I am comparing two SQL Server 2005 Databases, one is local to my Windows XP SP2 machine, while the other is located on a remote SQL Server 2005 server running on Windows Server 2003.

Thanks in advance!!!

Brian Donahue · January 30, 2006 12:46PM

Hello,

Out of curiosity, is the database that resides on the SQL Server 2005 instance in compatability mode? I believe this affects the system table structure if the db is on a SQL 2005 Server but is configured for compatability mode 80.

digitalage · January 30, 2006 1:57PM

I am impressed! You were absolutely right! One of the DBs was in 80 compatibility mode. I made it 90 and the problem disapeared!

Thanks!!!

Brian Donahue · January 31, 2006 5:52AM

Hello there,

Yes, but I think it really should work anyway. I'll get someone to look into it.

Andras B · January 31, 2006 5:55AM

Brian Donahue wrote:

Hello there,

Yes, but I think it really should work anyway. I'll get someone to look into it.

Hi,

many thanks for letting us know about this issue. It indeed affects compatibility mode 80 on 2005.

Regards,
Andras

Error: Specified Cast is not valid

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