OracleCommand Class

This type is deprecated and will be removed in a future version of the .NET Framework. For more information, see Oracle and ADO.NET.

The OracleCommand class provides the following methods for executing commands against a data source:

You can reset the CommandText property and reuse the OracleCommand object.

If execution of the command results in a fatal OracleException, the OracleConnection may close. However, the user can reopen the connection and continue.

Note
Unlike the Command object in the other .NET Framework data providers (SQL Server, OLE DB, and ODBC), the OracleCommand object does not support a CommandTimeout property. Setting a command timeout has no effect and the value returned is always zero.

The following example uses the ExecuteReader method of OracleCommand, along with OracleDataReader and OracleConnection, to select rows from a table.

public void ReadMyData(string connectionString)
{
    string queryString = "SELECT EmpNo, DeptNo FROM Scott.Emp";
    using (OracleConnection connection = new OracleConnection(connectionString))
    {
        OracleCommand command = new OracleCommand(queryString, connection);
        connection.Open();
        OracleDataReader reader = command.ExecuteReader();
        try
        {
            while (reader.Read())
            {
                Console.WriteLine(reader.GetInt32(0) + ", " + reader.GetInt32(1));
            }
        }
        finally
        {
            // always call Close when done reading.
            reader.Close();
        }
    }
}

.NET Framework

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

Other Resources