// Start a local transaction myTrans = myConnection.BeginTransaction(IsolationLevel.ReadCommitted); // Assign transaction object for a pending local transaction myCommand.Transaction = myTrans;
try { myCommand.CommandText = "INSERT INTO Dept (DeptNo, Dname, Loc) values (50, 'TECHNOLOGY', 'DENVER')"; myCommand.ExecuteNonQuery(); myCommand.CommandText = "INSERT INTO Dept (DeptNo, Dname, Loc) values (60, 'ENGINEERING', 'KANSAS CITY')"; myCommand.ExecuteNonQuery(); myTrans.Commit(); Console.WriteLine("Both records are written to database."); } catch(Exception e) { myTrans.Rollback(); Console.WriteLine(e.ToString()); Console.WriteLine("Neither record was written to database."); } finally { myConnection.Close(); } }
{
try
{
string strCon = "";
OracleConnection Con = new System.Data.OracleClient.OracleConnection(strCon);
Con.Open(); string cmdText = " update " + strTable + " set " + strFieldName + " = :pb " + strWhere;
OracleCommand cmd = new OracleCommand(cmdText, Con);
OracleParameter op = new OracleParameter("pb", OracleType.Clob);
op.Value = strText;
cmd.Parameters.Add(op);
cmd.ExecuteNonQuery();
Con.Close();
}
catch (Exception ex)
{
return ex.Message;
}
return "";
} http://topic.csdn.net/u/20091015/15/48c36f95-8223-4180-938d-2895ad973f52.html
{
OracleConnection myConnection = new OracleConnection(myConnString);
myConnection.Open();
OracleCommand myCommand = myConnection.CreateCommand();
OracleTransaction myTrans;
// Start a local transaction
myTrans = myConnection.BeginTransaction(IsolationLevel.ReadCommitted);
// Assign transaction object for a pending local transaction
myCommand.Transaction = myTrans;
try
{
myCommand.CommandText = "INSERT INTO Dept (DeptNo, Dname, Loc) values (50, 'TECHNOLOGY', 'DENVER')";
myCommand.ExecuteNonQuery();
myCommand.CommandText = "INSERT INTO Dept (DeptNo, Dname, Loc) values (60, 'ENGINEERING', 'KANSAS CITY')";
myCommand.ExecuteNonQuery();
myTrans.Commit();
Console.WriteLine("Both records are written to database.");
}
catch(Exception e)
{
myTrans.Rollback();
Console.WriteLine(e.ToString());
Console.WriteLine("Neither record was written to database.");
}
finally
{
myConnection.Close();
}
}