Non-Updatable CRecordSets when a Query Issued?

If I issue an Open in MSVC++ 6 for a CRecordSet for an Access database without any parameters, the RecordSet is Updatable (I want to delete records), however; if I issue a query in the Open fucntion, the RecordSet is not Updatable. Why? How can I correct this?

This allows the RecordSet to be Updated:

This does not:
m_NGIP01ASet->Open(AFX_DB_USE_DEFAULT_TYPE, _T(QueryStr), CRecordset::skipDeletedRecords);
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I believe instead of CRecordset::skipDeletedRecords use
CRecordset::none (this makes your recordset fully updatable, but is incompatible with skipDeletedRecords).
maknightAuthor Commented:
This doesn't work either. I've already tried it. The RecordSet is dynaset and the table only has 8 fields.
maknightAuthor Commented:
Below is my Query statement. I'm calling a stored Query within Access. The Query DOES work, but the Record Set is not Updatable.

CString QueryStr = "{call FindDataQuery1}";
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may be
can help
Humm... maybe your open fails?

The following code works on my computer:

BOOL updatable = FALSE;
updatable = m_pSet->CanUpdata();
  //updatable is now TRUE
What is within your FindDataQuery1?

The problem may be with it query.
I will try to explain:

When you use more than 1 table in the query - it is possible that Access will not find way to update more than 1 table from recordset.

Look at this
SELECT * FROM Table1 INNER JOIN Table2 ON Table1.Field1 = Table2.Field2

Access 97 threat this as updatable recordset if you have member variables for ALL fields from both tables.

Thus I think the problem in your query.
Also try to use
SELECT * FROM FindDataQuery1

instead of {call FindDataQuery1}
Recordsets which use stored queries are not updatable.


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There is problem in your query. Can you post what is there in FindDataQuery1 ?
maknightAuthor Commented:
I'll post it later this evening. I'm not at a computer with the code on it. Thanks for all the comments thus far!!!
maknightAuthor Commented:
The Query as stored in Access (as best I can recall) is:

SELECT DataTable.* FROM DataTable (((WHERE DataTable.FromController = FALSE))) ORDER BY DataTable.KeyField, DataTable.Sequence

From within Access the Query works A-OK. If I put the actual Query statement in the Open function (instead of the "call" statement), it works OK except it does not perform the ORDER BY.
try using first parameter instead of DEFAULT to CRecordset::dynaset
ORDER BY can be implemented in CRecordset m_strSort member variable
m_pSet->m_strSort = "DataTable.KeyField, DataTable.Sequence";
m_strFilter = "DataTable.FromController = FALSE";
m_pSet->Open(CRecordset::dynaset,"Select * from [DataTable]");

Hope this helps

maknightAuthor Commented:
The part about Recordsets from stored queries not being updatable answered the question, and vachooho's follow-up helped tie it up. Thanks.
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