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write conflicts & Jet engine error messages on some records and not on others

Posted on 2011-09-23
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Last Modified: 2012-05-12
i've come across a problem on a linked table (from a SQL server 2k backend) in an MDB file.

for this particular table, the majority of the records can be edited, deleted and i can also add new ones as well. however, for a very small subset, i cannot with the write conflict and "Jet database stopped" messages.

i deleted and relinked the table, i checked the permissions on the SQL server, and made sure there was a unique identity on the table as well.

the interesting fact is that the records are uneditable and undeletable were created via a form, and each time each was created, the write conflict error would pop up, but the record would still be saved (each uneditable and undeletable).

any ideas? thanks!
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Question by:ironpen45
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Author Comment

by:ironpen45
ID: 36589170
update: if i copy an entire row and paste it on the table, i'm able to delete and edit this newly entered record. however, if i manually enter data in each field (column) from left to right, then the record is uneditable/undeletable in access. i can still edit and delete in SQL.
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Expert Comment

by:Anthony Perkins
ID: 36591029
>>and made sure there was a unique identity on the table as well.<<
An IDENTITY column does not mean that it is unique.  More important is:  Do you have a Primary Key on the table?

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Author Comment

by:ironpen45
ID: 36591116
>>An IDENTITY column does not mean that it is unique.  More important is:  Do you have a Primary Key on the table?<<

yes, it also has a primary key which happens to be have an IDENTITY property.

another observation: i can remove those undeletable records with a delete query.
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Expert Comment

by:Anthony Perkins
ID: 36592776
If you have defined a Primary Key on the column with an IDENTITY attribute, then I have no idea what could be the problem.
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Author Comment

by:ironpen45
ID: 36599112
>>If you have defined a Primary Key on the column with an IDENTITY attribute, then I have no idea what could be the problem. <<

i created a new MDB, linked the table in question and noticed the same thing (able to edit/delete older records, but not newer records).

generally, one would expected the same behavior for all records in a given table, but not some (newer) records and yes for the majority (older) records.

would constraints be an issue?

i think i've exhausted my search. please help!
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Accepted Solution

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ironpen45 earned 0 total points
ID: 36599471
found the solution: http://support.microsoft.com/kb/280730.

the problem was a bunch of bit and float type fields with null values. what was confounding was the older records has data in them, allowing me to edit/delete whereas the newer ones had no default value and allowed nulls.

just added a date/time stamp field with timestamp and works like a charm.
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Expert Comment

by:Anthony Perkins
ID: 36654771
>>found the solution: <<
Excellent! Now please close the question.
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Author Closing Comment

by:ironpen45
ID: 37130065
because it works
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