搜斧SearchFull - 数据库 category

搜斧SearchFull - 数据库 category http://www.searchfull.net:80/blog/ 专注于Java技术、开源项目、项目管理 zh liupinghua Fri, 21 Nov 2008 04:09:18 GMT Pebble http://backend.userland.com/rss http://www.searchfull.net/searchfull/images/logo.gif 搜斧SearchFull (数据库 category) http://www.searchfull.net:80/blog/ 数据库模型Schema设计的必要考虑 http://www.searchfull.net:80/blog/2008/11/21/1227240558073.html <p>一个数据库的Schema模型设计影响它的可用性和性能，因此应该对设计一个符合用户需求的数据库及时地做一个初始的投资和研究。这里不是提供一个详细的数据库设计指南，只是说一说设计数据库模型应该考虑的一些观点。</p> <ul> <li><a href="http://www.searchfull.net/blog/2008/11/21/1227240558073.html">一个良好设计的Schema模型应该做些什么考虑</a>？</li> <li>什么是事实表和维度表？</li> </ul> <p><a href="http://www.searchfull.net:80/blog/2008/11/21/1227240558073.html">Read more...</a></p> 数据库 http://www.searchfull.net:80/blog/2008/11/21/1227240558073.html#comments http://www.searchfull.net:80/blog/2008/11/21/1227240558073.html Fri, 21 Nov 2008 04:09:18 GMT 如何选择主键：业务主键还是代理主键？ http://www.searchfull.net:80/blog/2008/11/21/1227236356717.html <p><font face="Arial">数据库的Schema设计很重要的是主键的设计：</font></p> <ul> <li><font face="Arial">如何选择Primary Key: Natural or Surrogate？Naural由真实世界存在的属性而组成，含有业务意义；Surrogate没有业务意义。</font></li> <li><font face="Arial">选择什么数据类型的主键？</font></li> <li><font face="Arial">是否显示主键给用户？</font></li> <li><font face="Arial">用什么策略生成主键？</font></li> <li><font face="Arial">做错了选择怎么办？</font></li> </ul> <p>那么到底<a href="http://www.searchfull.net/blog/2008/11/21/1227236356717.html">应该怎么设计主键</a>呢？</p> <p><a href="http://www.searchfull.net:80/blog/2008/11/21/1227236356717.html">Read more...</a></p> 数据库 http://www.searchfull.net:80/blog/2008/11/21/1227236356717.html#comments http://www.searchfull.net:80/blog/2008/11/21/1227236356717.html Fri, 21 Nov 2008 02:59:16 GMT Oracle管理监控的一些SQL收藏 http://www.searchfull.net:80/blog/2008/11/20/1227152397281.html <p><font face="Arial"><a href="http://www.oracle.com/global/cn/index.html">Oracle</a> 10G有Enterprise Manager Console可以方便地管理Oracle，但是在无法访问Enterprise Manager Console或者在Oracle10G以前的版本怎么办呢？</font></p> <p><a href="http://www.searchfull.net:80/blog/2008/11/20/1227152397281.html">Read more...</a></p> 数据库 http://www.searchfull.net:80/blog/2008/11/20/1227152397281.html#comments http://www.searchfull.net:80/blog/2008/11/20/1227152397281.html Thu, 20 Nov 2008 03:39:57 GMT Oracle启动时ORA-00600: 内部错误代码，参数: [kcratr1_lostwrt] http://www.searchfull.net:80/blog/2008/08/04/1217814822742.html SQL> startup mount<br /> ORACLE 例程已经启动。<br /> <br /> Total System Global Area  135338868 bytes<br /> Fixed Size                   453492 bytes<br /> Variable Size             109051904 bytes<br /> Database Buffers           25165824 bytes<br /> Redo Buffers                 667648 bytes<br /> 数据库装载完毕。<br /> SQL> recover database<br /> 完成介质恢复。<br /> SQL> alter database open<br />   2  ;<br /> <br /> 数据库已更改。<br /> <p><a href="http://www.searchfull.net:80/blog/2008/08/04/1217814822742.html">Read more...</a></p> 数据库 http://www.searchfull.net:80/blog/2008/08/04/1217814822742.html#comments http://www.searchfull.net:80/blog/2008/08/04/1217814822742.html Mon, 04 Aug 2008 01:53:42 GMT HBase distributed database Getting Started http://www.searchfull.net:80/blog/2008/05/16/1210932129832.html <a href="http://hbase.org/">HBase</a> is a scalable, distributed database built on <a href="http://hadoop.apache.org/core">Hadoop Core</a>. <p><a href="http://www.searchfull.net:80/blog/2008/05/16/1210932129832.html">Read more...</a></p> 数据库 Java技术 http://www.searchfull.net:80/blog/2008/05/16/1210932129832.html#comments http://www.searchfull.net:80/blog/2008/05/16/1210932129832.html Fri, 16 May 2008 10:02:09 GMT 一份Oracle的ADDM报告 http://www.searchfull.net:80/blog/2007/10/22/1193047046111.html Oracle的ADDM报告 <p><a href="http://www.searchfull.net:80/blog/2007/10/22/1193047046111.html">Read more...</a></p> 数据库 http://www.searchfull.net:80/blog/2007/10/22/1193047046111.html#comments http://www.searchfull.net:80/blog/2007/10/22/1193047046111.html Mon, 22 Oct 2007 09:57:26 GMT ORA-12500, TNS:listener failed to start a dedicated server process http://www.searchfull.net:80/blog/2007/09/29/1191056109156.html This solution covers the following topics:<br /> <br /> A. TNS-12500 on Microsoft Windows NT<br /> B. Intermittent TNS-12500 Errors on Microsoft Windows NT<br /> <br /> <p><a href="http://www.searchfull.net:80/blog/2007/09/29/1191056109156.html">Read more...</a></p> 数据库 http://www.searchfull.net:80/blog/2007/09/29/1191056109156.html#comments http://www.searchfull.net:80/blog/2007/09/29/1191056109156.html Sat, 29 Sep 2007 08:55:09 GMT 如何指定mysql的字符集 http://www.searchfull.net:80/blog/2007/09/15/1189845742264.html shell> mysqld --character-set-server=utf8<br> 或者：<br> shell> mysqld_safe --character-set-server=utf8 <p><a href="http://www.searchfull.net:80/blog/2007/09/15/1189845742264.html">Read more...</a></p> 数据库 http://www.searchfull.net:80/blog/2007/09/15/1189845742264.html#comments http://www.searchfull.net:80/blog/2007/09/15/1189845742264.html Sat, 15 Sep 2007 08:42:22 GMT 史上最伟大12款软件排名 http://www.searchfull.net:80/blog/2007/09/06/1189050266738.html <p> <p><font face="Arial"></font></p> <font face="Arial">　　1. Unix操作系统 </font></p> <p><font face="Arial">　　2. IBM System R-1983年以DB2的形式进入商业市场 </font></p> <p><font face="Arial">　　3.基因排序软件-美国基因组研究所(IGR) </font></p> <p><font face="Arial">　　4. IBM System 360系统 </font></p> <p><font face="Arial">　　5. Java语言 </font></p> <p><a href="http://www.searchfull.net:80/blog/2007/09/06/1189050266738.html">Read more...</a></p> 网摘文章数据库 UNIX Java技术 http://www.searchfull.net:80/blog/2007/09/06/1189050266738.html#comments http://www.searchfull.net:80/blog/2007/09/06/1189050266738.html Thu, 06 Sep 2007 03:44:26 GMT 在Spring+hibernate里关闭远程Oracle dblink http://www.searchfull.net:80/blog/2007/08/23/1187841621194.html 在Spring+hibernate里关闭远程Oracle dblink <p><a href="http://www.searchfull.net:80/blog/2007/08/23/1187841621194.html">Read more...</a></p> 数据库 Java技术 http://www.searchfull.net:80/blog/2007/08/23/1187841621194.html#comments http://www.searchfull.net:80/blog/2007/08/23/1187841621194.html Thu, 23 Aug 2007 04:00:21 GMT Mysql 5.0.22 Cluster for RedHat AS4-U2 安装 http://www.searchfull.net:80/blog/2007/08/17/1187338819268.html Mysql 5.0.22 Cluster for RedHat AS4-U2 集群安装参考<br> 来自<a href="http://linux.chinaitlab.com/MYSQL/521518.html">chinaitlab.com</a> <p><a href="http://www.searchfull.net:80/blog/2007/08/17/1187338819268.html">Read more...</a></p> 数据库 http://www.searchfull.net:80/blog/2007/08/17/1187338819268.html#comments http://www.searchfull.net:80/blog/2007/08/17/1187338819268.html Fri, 17 Aug 2007 08:20:19 GMT ORA-03115: 不支持的网络数据类型或表示法 http://www.searchfull.net:80/blog/2007/08/17/1187316227842.html <div>出现ORA-03115: unsupported network datatype or representation错误的原因，网上有几种说法：</div> <ul> <li> <div style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: -21pt"><span><span style="FONT: 7pt 'Times New Roman'">        </span></span>Oracle客户端的版本和服务器的版本不一致，通常是客户端版本太老</div> </li> <li> <div style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: -21pt"><span><span style="FONT: 7pt 'Times New Roman'">        </span></span>在Oracle8使用了Timestamp类型，Oracle 8 中还不存在 Timestamp 这样的数据类型</div> </li> </ul> <p><a href="http://www.searchfull.net:80/blog/2007/08/17/1187316227842.html">Read more...</a></p> 数据库 http://www.searchfull.net:80/blog/2007/08/17/1187316227842.html#comments http://www.searchfull.net:80/blog/2007/08/17/1187316227842.html Fri, 17 Aug 2007 02:03:47 GMT HOWTO Install Oracle 10g http://www.searchfull.net:80/blog/2007/08/14/1187080226848.html HOWTO Install Oracle 10g on Linux <p><a href="http://www.searchfull.net:80/blog/2007/08/14/1187080226848.html">Read more...</a></p> 数据库 http://www.searchfull.net:80/blog/2007/08/14/1187080226848.html#comments http://www.searchfull.net:80/blog/2007/08/14/1187080226848.html Tue, 14 Aug 2007 08:30:26 GMT 开发大型高负载类网站应用的几个要点 http://www.searchfull.net:80/blog/2007/08/04/1186194548846.html <ul> <li>数据库集群 </li> <li>缓存 </li> <li>负载均衡/加速 </li> <li>分布式存储 </li> </ul> <p><a href="http://www.searchfull.net:80/blog/2007/08/04/1186194548846.html">Read more...</a></p> 网摘文章数据库 http://www.searchfull.net:80/blog/2007/08/04/1186194548846.html#comments http://www.searchfull.net:80/blog/2007/08/04/1186194548846.html Sat, 04 Aug 2007 02:29:08 GMT Oracle语句优化５３个规则详解 http://www.searchfull.net:80/blog/2007/07/26/1185435108678.html <p>来自<font face="Arial"><a href="http://oracle.chinaitlab.com/optimize/724776.html">chinaitlab</a></font></p> <p>    <strong>1. 选用适合的ORACLE优化器</strong></p> <p>        <strong>ORACLE的优化器共有3种：</strong></p> <p>a. RULE （基于规则）   <br /> b. COST （基于成本） <br /> c. CHOOSE （选择性）</p> <p>    设置缺省的优化器，可以通过对init.ora文件中OPTIMIZER_MODE参数的各种声明，如RULE，COST，CHOOSE，ALL_ROWS，FIRST_ROWS . 你当然也在SQL句级或是会话（session）级对其进行覆盖。</p> <p><a href="http://www.searchfull.net:80/blog/2007/07/26/1185435108678.html">Read more...</a></p> 数据库 http://www.searchfull.net:80/blog/2007/07/26/1185435108678.html#comments http://www.searchfull.net:80/blog/2007/07/26/1185435108678.html Thu, 26 Jul 2007 07:31:48 GMT