The operation need a query that can be updated (ACCESS)

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Hi
I have a simple UPDATE query (C#) without external links neither groupe.
It works fine but for some records I get the error message here above.
The table tblLR contains 30,000 records and only a small part of them are impacted and there are not the same when the application is run various time.

var query = "UPDATE tblLR " +
                        "SET Location = '" + com + "' " +
                        ", SortedLocation = '" + com + "' " +
                        ", ShortName= '" + topLegacy.ShortName.Replace("'", "''") + "' " +
                        ", Latitude = '" + topLegacy.Latitude + "' " +
                        ", Longitude = '" + topLegacy.Longitude + "' " +
                        " WHERE (IDLR = " + topLegacy.Idlr + " );";

Thanks for your help.
Bernard

What I have tried:

I went on various web sites, saw a lot of articles but none of them solved my issue.

Posted 13-Dec-17 0:16am

BernardBouree

Updated 13-Dec-17 1:55am

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Comments

CHill60 13-Dec-17 7:25am

Is the access database stored locally or on a server? I have had similar issues on a larger access database on a DFS - no pattern nor rhyme nor reason.
I got over it by opening the database in Exclusive mode but not sure if that will help you.
As an aside you should really use Parameterized Queries and not string concatenation to create your query

BernardBouree 13-Dec-17 10:15am

The data base is stored loccaly on my HD.
I have tried with the exclusivity but without success.

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