O7: ODBC missing data from SQLServer

Phil (OmnisList) phil at pgpotter.co.uk
Tue Jun 21 05:50:59 EDT 2016


Hi Gav,

What version of Omnis 7, or the o7odbc.dll are you using?

half recall someone having this issue, but don't recall what the answer 
was....

I latterly used O7v3832 and used a dll dated 9/2/2001 84kb.


regards
Phil Potter
Based in Chester in the UK.

On 20/06/2016 23:44, Gavin Foster wrote:
> Hi all,
>
> I’m migrating an Omnis 7 application to SQLServer, using ODBC to connect.
> This is Windows 7, Omnis 7 (32 bit) with ODBC connection created using C:/Windows/syswow64/odbcad32.exe
>
> All the data goes into the database, using $insertnames / $updatenames and seems fine.
>
> However if we do a “select * from <table>” and fetch a row / build a list based on a large file format (like 200 fields), then characters get lost. This only happens with particularly large (wide, multi-column) results sets.
>
> i.e.
> At various points along the row(s) of data, a character in the results simply doesn’t end up in the CRB.
> It might be a char(1) field which ends up blank.
> It might be a char(9) field which only has 8 characters in it, and the last one has gone awol.
>
> Can anyone remember this issue from the time they used O7?
> - is it the ODBC driver we’re using (SQL Server)?
> - is it a fault in O7 that was fixed in some patch release or not?
>
> Note that all the data is returned in Studio 8 v1.2.1
> However, that is 64 bit Studio on Windows 7 with a 64 bit ODBC connection.
>
> Thanks and regards,
> Gav
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