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POHow do I overcome / work around this difference between local and linked Access Tables
 

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  1. POHow do I overcome / work around this difference between local and linked Access Tables
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    <p>Ok. Quick background: MS Access 2003 with 2003/2003 format MDB file upgraded from Access 97.</p> <p>For the purposes of this example, there are two tables.</p> <pre><code>Table 1 Asset ID - (text 20) ParentID - (text 20) Other fields AssetRels ID - (text 20) </code></pre> <p>When a record is added to Asset, the ID is added to AssetRels.</p> <p>From Asset.ID to AssetRels.ID there is a relationship that exists that enforces referential integrity with cascade update and cascade delete.</p> <p>From AssetRels.ID to Asset.ParentID there is a relationship that enforces referential integrity with cascade update only.</p> <p>I have 2 records in Asset</p> <pre><code>VACU0703200, NULL VACU0703250, VACU0703200 </code></pre> <p>In the data DB, I can go into the table and change VACU0703200 to VACU0704500 and the changes propogate as expected.</p> <p>If I open the front end DB that links to the data DB, and try the same change (in the table directly) I get "Could not update; currently locked" (no, nothing about 'another session', that's the whole error message)</p> <p>Both databases are set to "no lock" for the "default record locking"</p> <p>Obviously, there is some difference in row/page/table level locks that is preventing the cascade update from working.</p> <p>Does anyone know of some property settings that I can use somewhere to stop this error? I would prefer not to have to remove the relationship, but otherwise I might have to, and handle it in code.</p> <p>Edit: Cause is that the table contains a Memo field. Apparently via the linked table, having the Memo field overflow the 4K row size escalates to a table lock. which in turn triggers the problem.</p> <p>Solution (hackish) is to prevent edits to the ID field on the form, and add a new form to rename. Save changes before opening the new form, and performing the update via an update query works.</p>
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    1. This table or related slice is empty.
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    1. USRoger Willcocks
    1. USRoger Willcocks
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    1. This table or related slice is empty.
    1. CODid you save the records after your edited them?
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      1. POHow do I overcome / work around this difference between local and linked Access Tables
      1. USDavid-W-Fenton
    2. COIt's the save that triggers the error.
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      1. POHow do I overcome / work around this difference between local and linked Access Tables
      1. USRoger Willcocks
    3. COYou describe two edits, edit 1 and edit 2. I'm asking if you save the record after edit 1 and before edit 2. If you don't, yes, you'll encounter the problem you're describing.
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      1. POHow do I overcome / work around this difference between local and linked Access Tables
      1. USDavid-W-Fenton
 

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