mysql_fetch_row(): supplied argument is not a valid MySQL result resource，何人能解？该如何解决 _PHP

mysql_fetch_row(): supplied argument is not a valid MySQL result resource，何人能解？
代码如下：

<?php
/*
* Created on 2012-1-1
*
* To change the template for this generated file go to
* Window - Preferences - PHPeclipse - PHP - Code Templates
*/
$conn = mysql_connect("localhost","root","") or die ("连接出错");
mysql_select_db("dongxinb",$conn);

$sql="SELECT * FROM 'word'";
$query=mysql_query($sql,$conn);
$row=mysql_fetch_array($query);
echo $row[name];
?>

其中name为dongxinb数据库word表的字段。
错误信息：Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in D:\wamp\www\word\1.php on line 13

其中INSERT能正常插入。

------解决方案--------------------
SQL 错了

修改成
$sql="SELECT * FROM word";
------解决方案--------------------

PHP code


<?php
/*
 * Created on 2012-1-1 To change the template for this generated file go to
 * Window - Preferences - PHPeclipse - PHP - Code Templates
 */
include ("conn.php");
?>

<table width=500 border="0" align="center" cellpadding="5"
    cellspacing="1" bgcolor="#add3ef">
<?php
$sql = "select * from word";
$query = mysql_query ( $sql );
while ( $row = mysql_fetch_array ( $query ) ) {
    echo <<<html
  <tr bgcolor="#eff3ff">
  <td>姓名:{$row['name']}</td>
  </tr>
  <tr bgColor="#ffffff">
  <td>Message:{$row['words']}</td>
  <td>更新时间:{$row['date']}</td>
  </tr>
html;
}
?>

</table>