textareaÖеÄÄÚÈÝͨ¹ýÌí¼Ó°´Å¥Ìí¼Óµ½SQLÊý¾Ý¿âÖÐ
ÎÒ¶¨ÒåÁËÒ»¸ö textarea:
<tr bgcolor="#CCCCCC" align="center" valign="bottom">
<td align="right" valign="top" class="style1" >ÎÄÕÂÄÚÈÝ£º</td>
<td width="83%" bgcolor="#FFFFFF" align="left">
<textarea cols="75" rows="6" style="width: 1000px; height: 576px"></textarea>
</td>
</tr>
<tr bgcolor="#abb8d6">
<td colspan="2" width="588" align="center" height="55">
<asp:Button ID="Button1" runat="server" Text="Ìí¼Ó" onclick="Button1_Click" Width="55px" />
<asp:Button ID="Button2" runat="server" Text="È¡Ïû" onclick="Button2_Click" Width="55px" />
</td>
</tr>
ÏÖÔÚÏëͨ¹ý“Ìí¼Ó”°´Å¥½«textareaÖеÄÄÚÈÝÌí¼Óµ½Ö¸¶¨µÄÊý¾Ý¿âÖУ¬¸ÃÔõô°ì£¿
Ïà¹ØÎĵµ£º
ÉÏ΢ÈíÍøÕ¾ÏÂÔØsqlserver2005 jdbc driver °ü
1¡¢½«microsoft sql server 2005 jdbc driver\sqljdbc_1.2\chs\sqljdbc.jar°ü copyµ½·¢²¼ÏµÍ³ µÄ web-inf\libĿ¼ÖÐ
2¡¢½«microsoft sql server 2005 jdbc driver\sqljdbc_1.2\chs\auth\x86\sqljdbc_auth.dll Îļþcopyµ½ windows ......
SQL ³£ÓÃÓï¾äÒÔ¼°º¯ÊýÖ®Ò»
SELECT --´ÓÊý¾Ý¿â±íÖмìË÷Êý¾ÝÐкÍÁÐ
¡¡¡¡¡¡¡¡¡¡¡¡INSERT --ÏòÊý¾Ý¿â±íÌí¼ÓÐÂÊý¾ÝÐÐ
¡¡¡¡¡¡¡¡¡¡¡¡DELETE --´ÓÊý¾Ý¿â±íÖÐɾ³ýÊý¾ÝÐÐ
¡¡¡¡¡¡¡¡¡¡¡¡UPDATE --¸üÐÂÊý¾Ý¿â±íÖеÄÊý¾Ý
¡¡¡¡--Êý¾Ý¶¨Òå
¡¡¡¡ CREATE TABLE --´´½¨Ò»¸öÊý¾Ý¿â±í
¡¡¡¡¡¡¡¡¡¡¡¡DROP TABLE --´ÓÊý¾Ý¿âÖÐɾ³ý±í
......
Ò»¡¢SQL´æ´¢¹ý³ÌµÄ¸ÅÄÓŵ㼰Óï·¨
¡¡¡¡ÕûÀíÔÚѧϰ³ÌÐò¹ý³Ì֮ǰ£¬ÏÈÁ˽âÏÂʲôÊÇ´æ´¢¹ý³Ì?ΪʲôҪÓô洢¹ý³Ì£¬ËûÓÐÄÇЩÓŵã
¡¡¡¡¶¨Ò壺½«³£ÓõĻòºÜ¸´ÔӵŤ×÷£¬Ô¤ÏÈÓÃSQLÓï¾äдºÃ²¢ÓÃÒ»¸öÖ¸¶¨µÄÃû³Æ´æ´¢ÆðÀ´, ÄÇôÒÔºóÒª½ÐÊý¾Ý¿âÌṩÓëÒѶ¨ÒåºÃµÄ´æ´¢¹ý³ÌµÄ¹¦ÄÜÏàͬµÄ·þÎñʱ,Ö»Ðèµ÷ÓÃexecute,¼´¿É×Ô¶¯Íê³ ......
http://www.sql-server-performance.com/tips/clustered_indexes_p1.aspx
As a rule of thumb, every table should have a clustered index. Generally, but not always, the clustered index should be on a column that monotonically increases--such as an identity column, or some other column where the value is ......