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Asked: 2026-05-17T23:35:30+00:00

I have some code which re-arranges some items on a form, but only one

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I have some code which re-arranges some items on a form, but only one SQL query. All my tables aren’t locked before the code runs but for some reason I get an error when running:

DoCmd.RunSQL ("Select * Into MasterTable From Year07 Where 'ClassName' = '7A'")

Error:

The database engine could not lock table because it is already in use by another person or process. (Error 3211) To complete this operation, a table currently in use by another user must be locked. Wait for the other user to finish working with the table, and then try the operation again.

Any ideas what I can do to stop the table being locked?

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1 Answer

  1. Editorial Team

    Is MasterTable included in your form’s Record Source? If so, you can’t replace it, or modify its structure, while the form is open.

    Apart from the table lock issue, there is a logic error in the SELECT statement. 

    Where 'ClassName' = '7A'

    The string, ClassName, will never be equal to the string, 7A. Therefore your SELECT can never return any records. If ClassName is the name of a field in your Year07 table, discard the quotes which surround the field name.

    Where ClassName = '7A'
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