单个OleDbCommand中的多个select语句不起作用

Question

我正在尝试使用单个命令对象从2个访问表中选择数据。这是我的代码 -

using (OleDbCommand cmdCommand=new OleDbCommand())
{
    cmdCommand.CommandType = CommandType.Text;
    cmdCommand.CommandText = "select * from tableA;select * from tableB";
    cmdCommand.Connection = Connection;
    using (OleDbDataAdapter daData=new OleDbDataAdapter())
    {
       daData.SelectCommand = cmdCommand;
       Connection.Open(); daData.Fill(ds); Connection.Close();
    }
 }

但它会抛出异常“在sql语句结束后找到的字符。” 任何建议？