?? restrictions on live queries.htm
字號:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta name="GENERATOR" content="Microsoft FrontPage 3.0">
<title>Restrictions on live queries</title>
</head>
<body>
<table border="0" width="100%" style="font-size: 9pt">
<tr>
<td width="100%"><strong>對于實時查詢的限制<br>
</strong>
對于單個數據表的查詢,如果不包含以下的內容,就可以返回“實時結果集”<strong>:<br>
</strong> (1)在Select語句中不包含DISTINCT<br>
(2)Join<br>
(3)Aggregate<br>
(4)Base tables or views that are not updatable.<br>
(5)Subqueries.<br>
(6)ORDER BY clauses not based on an index.<hr size="1">
<p align="center"><a href="mailto:ilovedelphi@163.net">RainBow</a>策劃制作
版權所有</td>
</tr>
</table>
<p> </p>
</body>
</html>
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -