The information in this article applies to:
Moderate: Requires basic macro, coding, and interoperability skills. This article applies only to a Microsoft Access database (.mdb). SYMPTOMSWhen you save a table after you add a new field or change the properties of an existing field, you receive the message: This message is followed by: You receive these messages even though you have 255 or fewer fields defined in the table. NOTE: You also receive this message if you add or modify fields in a report that is based on a table that has too many fields. CAUSEThe internal column count that Microsoft Access uses to track the number of fields in the table has reached 255, even though you may have fewer than 255 fields in the table. This can happen because Access does not change the internal column count when you delete a field. Access also creates a new field (increasing the internal column count by 1) for every field whose properties you modify. RESOLUTION
To free the internal column count for deleted fields or for fields whose
properties you modify, do one of the following:
-or-
MORE INFORMATIONMicrosoft provides programming examples for illustration only, without warranty
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merchantability and/or fitness for a particular purpose. This article assumes that you
are familiar with the programming language being demonstrated and the tools used to
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of a particular procedure, but they will not modify these examples to provide added
functionality or construct procedures to meet your specific needs. If you have limited
programming experience, you may want to contact a Microsoft Certified Solution Provider
or the Microsoft fee-based consulting line at (800) 936-5200. For more information about
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http://www.microsoft.com/mcsp/For more information about the support options available from Microsoft, please see the following page on the World Wide Web: http://www.microsoft.com/support/supportnet/overview/overview.aspNOTE: The sample code in this article uses Microsoft Data Access Objects. For this code to run properly, you need to reference the Microsoft DAO 3.6 Object Library. In Access, you can define up to 255 fields in a table. If you create 255 fields and then delete 10, Access does not release the fields from the internal column count. Also, for every field whose properties you modify, Access creates a new field and does not release the original field from the internal column count. Steps to Reproduce Behavior
REFERENCESFor more information about database specifications, click Microsoft Access Help on the
Help menu, type "Microsoft Access specifications" in the Office Assistant or the Answer Wizard,
and then click Search to view the topics returned. Additional query words: prb
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