35220.htm

一本很基础的SQL讲解

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        <td height="24" align="center" valign="bottom" class="d_font3">用SQL PLUS构建excel或html输出</td>
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        <td class="d_font4"><P>通过SQL*PLUS我们可以构建友好的输出，满足多样化用户需求。本例通过简单示例，介绍通过sql*plus输出xls，html两种格式文件。 
<P>首先创建两个脚本：
<P>1.main.sql 
<P>用以设置环境，调用具体功能脚本。 
<P>2.功能脚本-get_tables.sql 
<P>为实现具体功能之脚本。 
<P>通过这样两个脚本可以避免spool中的冗余信息。 
<P>示例如下：
<P>1.main.sql脚本: 
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<TD class=code bgColor=#e6e6e6><PRE>[oracle@jumper utl_file]$ more main.sql
set linesize 200 
set term off verify off feedback off pagesize 999 
set markup html on entmap ON spool on preformat off
spool tables.xls
@get_tables.sql
spool off
exit</PRE></TD></TR></TBODY></TABLE>
<P>2.get_tables.sql脚本: 
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<TD class=code bgColor=#e6e6e6><PRE>[oracle@jumper utl_file]$ more get_tables.sql 
select owner,table_name,tablespace_name,blocks,last_analyzed
from all_tables order by 1,2;</PRE></TD></TR></TBODY></TABLE>
<P>3.执行并获得输出: 
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<TD class=code bgColor=#e6e6e6><PRE>[oracle@jumper utl_file]$ sqlplus "/ as sysdba" @main

SQL*Plus: Release 9.2.0.4.0 - Production on Mon Apr 25 10:30:11 2005

Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.


Connected to:
Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning option
JServer Release 9.2.0.4.0 - Production

Disconnected from Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning option
JServer Release 9.2.0.4.0 - Production
[oracle@jumper utl_file]$ ls -l tables.xls 
-rw-r--r-- 1 oracle dba 69539 Apr 25 10:30 tables.xls
[oracle@jumper utl_file]$ </PRE></TD></TR></TBODY></TABLE>
<CENTER></CENTER>
<P>此处输出为xls文件，通过下图我们可以看到输出效果: 
<CENTER><IMG src="/files/uploadimg/20061124/1205370.jpg"></CENTER>
<P>把main.sql脚本中的，spool tables.xls更改为spool tables.htm,我们可以获得htm格式输出，效果如下图: 
<CENTER><IMG src="/files/uploadimg/20061124/1205371.jpg"></CENTER>
<P>(责任编辑：铭铭 <A href="mailto: [e-mail]">[e-mail]</A> TEL：[phone])</P></td>
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