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Editorial Team
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Asked: 2026-06-06T14:53:35+00:00

So I fetched some data from a mdb file in c# via SELECT *

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So I fetched some data from a mdb file in c# via

"SELECT * FROM " + listBox1.GetItemText(listBox1.SelectedItem) + " WHERE Note = '" + listBox2.GetItemText(listBox2.SelectedItem).Replace("'","\'") + "'";

which selects the right data, here it is 

SELECT * FROM Main WHERE Note ='Hello'

The mdb data structure looks like this being plotted as a CSV-file:

"Record ID";Status;Placement;Private;Category;Note;Blob
14341665;4;2147483647;True;3;"""Hello"" - Neues

But when I try to remove entries with

"DELETE FROM " + listBox1.GetItemText(listBox1.SelectedItem) + " WHERE \"Record ID\" LIKE '" + dr[0] + "';";

or

"DELETE FROM " + listBox1.GetItemText(listBox1.SelectedItem) + " WHERE \"Record ID\" = '" + dr[0] + "';";

which looks like for instance 

DELETE FROM Main WHERE "Record ID" LIKE '14341665';

The entries just stay there. I can rerun the select command even restart my application, the mdb is not changed.

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1 Answer

  1. Editorial Team

    Is record ID a numeric field? If so, lose the quotes.

    DELETE FROM Main WHERE [Record ID] = 14341665;

    Note that spaces in field (column) names will always be a problem. Such columns names have to be enclosed in square brackets, as do columns named with reserved words.

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