删除表中所有记录,要怎样最简单?
我在SQLDataAdapter的deleteCommand中写了    "   delete   *   from   tablename    ",   那要怎样应用它来删除所有记录呢? 
 或者还有什么别的更直接的方法?   
------解决方案--------------------truncate,delete,drop的异同点 
 http://www.chinaunix.net/jh/19/252763.html   
  using (SqlConnection connection = new SqlConnection( 
                connectionString)) 
     { 
         SqlCommand command = new SqlCommand( "你的语句 ", connection); 
         command.Connection.Open(); 
         command.ExecuteNonQuery(); 
     }