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The provider is unable to determine identity for newly inserted rows

The provider is unable to determine identity for newly inserted rows

Post by Max » Thu, 18 Jan 2001 00:06:22



Problem:

-I have a table with Identity field
-In one function i call _Recordset::AddNew()/Update to insert a new field.
(I open a recordset with adCmdTable)
-In another function i call _Connection::Execute() to DELETE some rows.

In all functions i open and close connections and recordsets.

Only when i call function that Insert a new record after calling a function
that deletes records. It generates an Exception:

The provider is unable to determine identity for newly inserted rows
(-2147217893)

___________________________________
Thank you for resolving my problem

 
 
 
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1. Error - The provider is unable to determine identity for newly inserted rows (0x80040E1B)

We are using ADO to access  SQL Server 7 from VB6.

We open a keyset recordset

----------------------- code ----------------------------
Dim cnn As New ADODB.Connection
Dim rec As New ADODB.Recordset

cnn.Open "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial
Catalog=ADAS;Data Source=RENOIR"

rec.CursorType = adOpenKeyset
rec.CursorLocation = adUseServer
rec.LockType = adLockPessimistic

rec.Open "SELECT * FROM Person", cnn
----------------------- code ----------------------------

THEN WE ADD A ROW

----------------------- code ----------------------------
rec.AddNew

rec("Name")  =  "TemporaryName"

rec.Update
----------------------- code ----------------------------

THEN WE TRY TO MODIFY A FIELD

----------------------- code ----------------------------
id = rec("PersonId")

rec("Code")  =  "Code" & id

rec.Update
----------------------- code ----------------------------

at the
    rec("Code")  =  "Code" & id
statement the execution breaks with error

"The provider is unable to determine identity for newly inserted rows
(0x80040E1B)"

IF WE TRY A RESYNC
ADO returns a generic error
     "Errors occurred (0x80040E21)"

the only way to continue working on the record is either to issue a bookmark
positioning statement

----------------------- code ----------------------------
rec.Bookmark  =  rec.Bookmark

----------------------- code ----------------------------

or to reopen the recordset

----------------------- code ----------------------------
id = rec("PersonId")

rec.Close

rec.Open "SELECT * FROM Person WHERE PersonId = " & id, cnn

rec("Code")  =  "Code" & id

rec.Update
----------------------- code ----------------------------

Even i f I have tiese two workaround I would like to understand the casue of
the problem.

If anyone has any suggestion , I would appreciate hearing back.

Thanks
Lorenzo Saladini

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