OracleDataAdapter, OracleCommandBuilder and DBConcurrencyException.

Question

Hello,
I am having some issues with the OracleDataAdapter.Update method. If I use OracleCommandBuilder to dynamically create the update command, I have no problems and it works as expected.
But if I explicitly create the Update command and set the OracleDataAdapter.UpdateCommand property the code always throws a DBConcurrencyException.
I am testing this with an extremely simple 2 column test table (id, name) so Im sure the sql itself is ok!
Any advice?
Thanks,
Adam

Answer 1

..this method works:
     public void BuilderUpdate(DataSet set)
string constr = "xxx";
string cmdstr = "select id, name from test";
OracleDataAdapter adapter = new OracleDataAdapter(cmdstr, constr);
OracleCommandBuilder builder = new OracleCommandBuilder(adapter);
adapter.Update(set, "Test");
..and this method always throws exception:
     public void CommandUpdate(DataSet set)
string constr = "xxx";
OracleConnection conn = new OracleConnection(constr);
OracleCommand updateCommand = new OracleCommand("update test set name=:i_name where id =:i_id", conn);
OracleParameter updateIdParam = new OracleParameter("i_id", OracleDbType.Int32);
updateIdParam.SourceVersion = DataRowVersion.Current;
OracleParameter updateNameParam = new OracleParameter("i_name", OracleDbType.Varchar2);
updateNameParam.SourceVersion = DataRowVersion.Current;
updateCommand.Parameters.Add(updateNameParam);
updateCommand.Parameters.Add(updateIdParam);
OracleDataAdapter adapter = new OracleDataAdapter();
adapter.UpdateCommand = updateCommand;
adapter.Update(set, "Test");
Edited by: user10422769 on Dec 7, 2008 6:00 PM