Re: Too many fields for Excel

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""Jialiang Ge [MSFT]"" <jialge@xxxxxxxxxxxxxxxxxxxx> wrote in message
news:zuHXb9PLJHA.4620@xxxxxxxxxxxxxxxxxxxxxxxxx
Good morning everyone.

I think the error "Too many fields defined" thrown by the statement:

"Insert Into [Sheet1$] (F1,F2,F3,F4,F5, ~ ,F255,F256) Values
(62.94176,53. ~ 0,0,0,0,0,0)"

is majorly caused by a limit of Microsoft Jet database engine:
http://support.microsoft.com/kb/199076
The Microsoft Jet database engine has an internal limit of 255 fields per
query. In other words, even if the client is upgraded to Excel 2007, the
error will still be thrown.

As the KB article documented, two workarounds are:
1. Break down the update query into multiple update/insert queries.
2. Update the fields by using a recordset in Visual Basic for
Applications.

Apart from them, we may also consider Office automation in this Office
related issue. Office automation will allow us to automate Excel to add
values in the specified cell ranges. But it has two weaknesses: 1.
Performance; 2. The computer that runs the app needs to be installed with
Office.

Regards,
Jialiang Ge (jialge@xxxxxxxxxxxxxxxxxxxx, remove 'online.')
Microsoft Online Community Support

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I can't use Automation because this program is part of ASP.NET project.

There's a 3rd party tool that works a lot better then OleDb, since you can
update any cell and it has no problem updating 256 columns and no Automation
needed.

http://www.tmssoftware.com/site/flexcel.asp


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