FCapo
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vb.net expression
Hi,
In the Visual Studio dataset designer, in a specific table, I added an expression to my SQL statement, just to get only part of a string
Once I did this I can't update,save or delete records in the table anymore, I get the following error: Concurrency violation: the UpdateCommand affected 0 of the expected 1 records.
My database is an access database
Thanks for the help!
In the Visual Studio dataset designer, in a specific table, I added an expression to my SQL statement, just to get only part of a string
SELECT soumissionNumber, sDate, sClient, sProjet, sMandat, sClientId, mid(soumissionNumber, 9, 11) AS Expr1
FROM soumissionsOnce I did this I can't update,save or delete records in the table anymore, I get the following error: Concurrency violation: the UpdateCommand affected 0 of the expected 1 records.
My database is an access database
Thanks for the help!
Éric Moreau
I have never used the designer but your error is that the column from the expression cannot be updated. You will need to create another command to update your table.
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ASKER
Hi Jacques,
How would I do this with a datatable, I'm just looking to have a column with this expression : mid(soumissionNumber, 9, 11) AS Expr1
How would I do this with a datatable, I'm just looking to have a column with this expression : mid(soumissionNumber, 9, 11) AS Expr1
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