在資料庫中開始一個事務

來源:互聯網
上載者:User
資料|資料庫 下面的樣本建立一個 OracleConnection 和一個 OracleTransaction。它還示範了如何使用 BeginTransaction、Commit 和 Rollback 方法。

public void RunOracleTransaction(string myConnString)
{
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.CommandType= CommandType.StoredProcedure;
myCommand.CommandText="prc_test";
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();
}
}





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