说我有这两个对象：
OracleConnection connection = new OracleConnection(connectionString); OracleCommand command = new OracleCommand(sql,connection);
要关闭连接或Oracle,我必须调用command.Dispose(),connection.Dispose()或两者？
这够好吗
using(connection)
{
OracleDataReader reader = cmd.ExecuteReader();
// whatever...
}
using (OracleConnection connection = new OracleConnection(connectionString))
{
using (OracleCommand command = new OracleCommand(sql,connection))
{
using (OracleDataReader reader = cmd.ExecuteReader())
{
}
}
}
如果它实现了IDisposable,并且如果你创建它,然后把它放在一个使用块.
