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	<title>天道酬勤 &#187; book</title>
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	<description>Oracle and My Life</description>
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		<title>Surprise!第一本《Oracle DBA手记》</title>
		<link>http://www.ochef.net/2010/01/first-book-oracle-dba-notes.html</link>
		<comments>http://www.ochef.net/2010/01/first-book-oracle-dba-notes.html#comments</comments>
		<pubDate>Fri, 22 Jan 2010 15:20:26 +0000</pubDate>
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				<category><![CDATA[Database]]></category>
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		<description><![CDATA[Wow，昨天在Eygle大师的Blog上看到《Oracle DBA手记》已经上架了，先恭喜一下这几位大牛（Eygle、Yangtingkun、老熊、zergduan、banping）出了新作。继续往下看，没想到第一本书是寄给我的，这里谢谢Eygle，谢谢几位大牛们，感谢Julia，因为我想大师业务缠身应该没有时间寄书：）。农历新年快到了，这本书对我来说是新年最好的礼物，同时也是莫大的鼓舞，告诫自己努力。图片作证： -The End-<table class="wumii-related-items" cellspacing="0" cellpadding="2" border="0" width="100%" style="clear: both;">
    
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			<content:encoded><![CDATA[<p>Wow，昨天在Eygle大师的Blog上看到《<a href="http://www.eygle.com/archives/2010/01/dbanotes_taobao.html" target="_blank">Oracle DBA手记</a>》已经上架了，先恭喜一下这几位大牛（<a href="http://www.eygle.com" target="_blank">Eygle</a>、<a href="http://yangtingkun.itpub.net/index.php" target="_blank">Yangtingkun</a>、<a href="http://www.laoxiong.net" target="_blank">老熊</a>、zergduan、<a href="http://www.banping.com" target="_blank">banping</a>）出了新作。继续往下看，没想到第一本书是寄给我的，这里谢谢Eygle，谢谢几位大牛们，感谢<a href="http://tequilabombom.spaces.live.com/" target="_blank">Julia</a>，因为我想大师业务缠身应该没有时间寄书：）。农历新年快到了，这本书对我来说是新年最好的礼物，同时也是莫大的鼓舞，告诫自己努力。图片作证：<br />
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-The End-</p>
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		</item>
		<item>
		<title>第一次读完《The Art of SQL》</title>
		<link>http://www.ochef.net/2009/04/the-first-reading-the-art-of-sql.html</link>
		<comments>http://www.ochef.net/2009/04/the-first-reading-the-art-of-sql.html#comments</comments>
		<pubDate>Thu, 23 Apr 2009 14:43:15 +0000</pubDate>
		<dc:creator>ochef</dc:creator>
				<category><![CDATA[Database]]></category>
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		<description><![CDATA[用了三周左右的时间将SQL语言艺术这本书看完了，Stephane Faroult &#38; Peter Robson大师的作品不是像我这种能写几条再简单不过的SQL、会安装一下Oracle软件的人能一下子完全明白其中精髓的，但也感觉收获了不少，大大开阔了知识面，对调优又有了一些新的体会。这不是一本cookbook，也不仅仅只局限于ORACLE数据库的书，它偏向于Database、SQL原理，对于不同的数据库处理SQL的一些原则和技巧，以兵书的形式贯穿全文。确实，在某种程度上DBA真的像战场上的统领，掌控全局，成功与失败就在一线之间。这本书给我印象最深是第3、7章节。 第3章&#8212;战术部署：建立索引 说到索引，我想从事这行的XDJM们应该都知道（要地球人都知道还差那么一点），它让无数人欢喜过也让无数人头疼过。今时不同往日，随着业务，系统架构越来越复杂，那个曾经只需要加个索引又或者简单修改重建索引，索引是万灵药的年代已一去不复返了。任何事物都具有双重性，有得就有失，索引可以让查询变得更快也可以变得更慢，如何找到“切入点”做到有的放矢不是件容易的事情，要灵活运用就对DBA提出了更高的要求，熟悉业务，确定高质量的搜索条件是不能不做事。用一句话告诫自己：“建立索引必须要有充分的理由，不论外键还是其它字段都一样。” 第7章&#8212;变换战术：处理层次结构 大家都应该有过这样的经历：某些SQL在数据量少的时候效果令人很满意，随着数据量不断加大，执行的效果就开始像老爷车一样慢。统领应该很清楚：军—&#62;师—&#62;旅—&#62;团的军队结构，规范化很重要。有时候把系统搞得太复杂，表面上看起来多么的高深，还不是一般人能得懂的，最后连一些结构的设计连3NF都不满足，系统性能能好到哪里去呢？战术固然重要，战略更不可忽视。 最后用一句话勉励自己： 和所有语言一样，要精通SQL需要时间、经验和个人天赋。革命尚未成功，同志仍需努力！ 接下来的时间，计划将EYGLE大师的三本个人杰作综合精读第二遍 重点不再是命令、语句怎么写，而是尽量去揣摩大师创作时的意境，希望能有更大的收获。 -The End-<table class="wumii-related-items" cellspacing="0" cellpadding="2" border="0" width="100%" style="clear: both;">
    
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<p class="MsoNormal"><span style="font-family: 宋体;">用了三周左右的时间将</span><a href="http://www.china-pub.com/38677&amp;ref=ps" target="_blank"><span lang="EN-US">SQL</span></a><span style="font-family: 宋体;"><a href="http://www.china-pub.com/38677&amp;ref=ps" target="_blank">语言艺术</a>这本书看完了，<a href="http://www.roughsea.com/" target="_blank">Stephane Faroult</a> &amp; Peter Robson大师的作品不是像我这种能写几条再简单不过的</span><span lang="EN-US">SQL</span><span style="font-family: 宋体;">、会安装一下</span><span lang="EN-US">Oracle</span><span style="font-family: 宋体;">软件的人能一下子完全明白其中精髓的，但也感觉收获了不少，大大开阔了知识面，对调优又有了一些新的体会。这不是一本</span><span lang="EN-US">cookbook</span><span style="font-family: 宋体;">，也不仅仅只局限于</span><span lang="EN-US">ORACLE</span><span style="font-family: 宋体;">数据库的书，它偏向于</span><span lang="EN-US">Database</span><span style="font-family: 宋体;">、</span><span lang="EN-US">SQL</span><span style="font-family: 宋体;">原理，对于不同的数据库处理</span><span lang="EN-US">SQL</span><span style="font-family: 宋体;">的一些原则和技巧，以兵书的形式贯穿全文。确实，在某种程度上</span><span lang="EN-US">DBA</span><span style="font-family: 宋体;">真的像战场上的统领，掌控全局，成功与失败就在一线之间。这本书给我印象最深是第</span><span lang="EN-US">3</span><span style="font-family: 宋体;">、</span><span lang="EN-US">7</span><span style="font-family: 宋体;">章节。</span></p>
<p class="MsoNormal"><span style="font-family: 宋体;">第</span><span lang="EN-US">3</span><span style="font-family: 宋体;">章</span><span lang="EN-US">&#8212;</span><span style="font-family: 宋体;">战术部署：建立索引</span></p>
<p class="MsoNormal"><span style="font-family: 宋体;">说到索引，我想从事这行的</span><span lang="EN-US">XDJM</span><span style="font-family: 宋体;">们应该都知道（要地球人都知道还差那么一点），它让无数人欢喜过也让无数人头疼过。今时不同往日，随着业务，系统架构越来越复杂，那个曾经只需要加个索引又或者简单修改重建索引，索引是万灵药的年代已一去不复返了。任何事物都具有双重性，有得就有失，索引可以让查询变得更快也可以变得更慢，如何找到“切入点”做到有的放矢不是件容易的事情，要灵活运用就对</span><span lang="EN-US">DBA</span><span style="font-family: 宋体;">提出了更高的要求，熟悉业务，确定高质量的搜索条件是不能不做事。用一句话告诫自己：“建立索引必须要有充分的理由，不论外键还是其它字段都一样。”</span></p>
<p class="MsoNormal"><span style="font-family: 宋体;">第</span><span lang="EN-US">7</span><span style="font-family: 宋体;">章</span><span lang="EN-US">&#8212;</span><span style="font-family: 宋体;">变换战术：处理层次结构</span></p>
<p class="MsoNormal"><span style="font-family: 宋体;">大家都应该有过这样的经历：某些</span><span lang="EN-US">SQL</span><span style="font-family: 宋体;">在数据量少的时候效果令人很满意，随着数据量不断加大，执行的效果就开始像老爷车一样慢。统领应该很清楚：</span><span style="font-family: 宋体;">军—<span lang="EN-US">&gt;</span>师—<span lang="EN-US">&gt;</span>旅—<span lang="EN-US">&gt;</span>团</span><span style="font-family: 宋体;">的军队结构，规范化很重要。有时候把系统搞得太复杂，表面上看起来多么的高深，还不是一般人能得懂的，最后连一些结构的设计连</span><span lang="EN-US">3NF</span><span style="font-family: 宋体;">都不满足，系统性能能好到哪里去呢？战术固然重要，战略更不可忽视。</span></p>
<p class="MsoNormal"><span style="font-family: 宋体;">最后用一句话勉励自己：</span></p>
<blockquote>
<p class="MsoNormal"><span style="font-family: 宋体;">和所有语言一样，要精通</span><span lang="EN-US">SQL</span><span style="font-family: 宋体;">需要时间、经验和个人天赋。革命尚未成功，同志仍需努力！</span></p>
</blockquote>
<p><span style="font-family: 宋体;">接下来的时间，计划将</span><a href="http://www.eygle.com" target="_blank"><span style="font-family: &amp;quot;Times New Roman&amp;quot;;" lang="EN-US">EYGLE</span></a><span style="font-family: 宋体;">大师的三本个人杰作综合精读第二遍<br />
</span><br />
<embed width="239" height="110"  menu="false" quality="high" src="http://f.yupoo.com/v.swf?id=ochef-ff808081259870da0126080efee2402b-m" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" ></embed><br />
<span style="font-family: 宋体;">重点不再是命令、语句怎么写，而是尽量去揣摩大师创作时的意境，希望能有更大的收获。</span></p>
<p><span style="font-size: 10.5pt; font-family: 宋体;">-The End-<br />
</span></p>
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		<title>第一次读完《Oracle高效设计》</title>
		<link>http://www.ochef.net/2009/04/read-the-first-oracle-efficient-design.html</link>
		<comments>http://www.ochef.net/2009/04/read-the-first-oracle-efficient-design.html#comments</comments>
		<pubDate>Thu, 02 Apr 2009 03:50:56 +0000</pubDate>
		<dc:creator>ochef</dc:creator>
				<category><![CDATA[Database]]></category>
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		<description><![CDATA[自3月11日开始到今天阅读完这一书，由于在网上只找到原著《Effective Oracle by Design》中的三章，所以买了本中文版的。总的来说翻译的还能接受，其中不乏错别字和不通顺的地方。回过头来这本书其实不太适合我这种初级的DBA看，本书是站在一个开发者的角度来探讨Oracle的高效：首先就一再强调开发人员与DBA是密不可分的，开发的整个阶段DBA都需要参与其中。引用网上的一句话：出来混总有一天是要还的。数据库不可能一直不出问题，那么出了问题我们应该怎么找到问题的突破口呢？这个突破口不是随随便便就能轻而易举找得到的。通常我们是怎么去判别一个人、一件事的好坏的呢？最简单的就是拿它比较，不是吗？只要我们手中有故障点前后的有效性能诊断报告Statspack，就能分析出问题出在哪里？而现实中我们往往缺少在故障之前的性能报告，对经验不是很丰富的DBA来说就像玻璃上的苍蝇无法找到出口，所以我们在Backup的同时也备份一下Statspack一定不会有坏处。 该书其它几章：架构的高效、SQL的高效、PL/SQL的高效这些知识不是一朝一夕就能一下子拥有的，需要无数的实践、总结最终提炼出来。人贵在自知之明，书中的一些知识点我没有明白，不明白为什么我的explain plan就是有问题，为什么我的I/O高，同时我也清楚的一点：阅读整本书的时候所有的coding都是我在sqlplus里一个一个敲的，一遍又一遍的敲能让我将语法记得更牢，同时代码也慢慢的提醒我需要去看哪块的基础知识。时常担心：如果哪天一个电话匆忙被客户叫到现场去诊断数据库，人家提供给你的notebook就只安装了SecureCRT,仔细一看还是ubuntu的系统，不会傻了吧：“对不起啊，我平时都用toad，EM&#8230;，sqlplus我 不太熟&#8230;&#8230;”客户肯定也傻了。什么叫professional呢? 读完本书还有一个感触，就是再难再深奥的东西都是在基础的知识点上建立而来的，万变不离其宗。大多数转行做DBA的人刚一看到latch、执行计划、索引都会蒙，至少我是的。慢慢随着接触的时间一天天增加，对基础知识的理解一点点加深、透彻，我想，要做到一个高级DBA也不会是想像中的很么难。 阅读完书时的初衷是想写点什么，后来一想自己七天写六字的水平还是算了吧，最后在biti大师的鼓励下乱写了一通，纯粹就当看完了书mark一下，仅此而已。同时期待Fenng一行三人的处女作《Troubleshooting Oracle Performance》中文版早日上架。<table class="wumii-related-items" cellspacing="0" cellpadding="2" border="0" width="100%" style="clear: both;">
    
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			<content:encoded><![CDATA[<p>自3月11日开始到今天阅读完这一书，由于在网上只找到原著《Effective Oracle by Design》中的三章，所以买了本中文版的。总的来说翻译的还能接受，其中不乏错别字和不通顺的地方。回过头来这本书其实不太适合我这种初级的DBA看，本书是站在一个开发者的角度来探讨Oracle的高效：首先就一再强调开发人员与DBA是密不可分的，开发的整个阶段DBA都需要参与其中。引用网上的一句话：出来混总有一天是要还的。数据库不可能一直不出问题，那么出了问题我们应该怎么找到问题的突破口呢？这个突破口不是随随便便就能轻而易举找得到的。通常我们是怎么去判别一个人、一件事的好坏的呢？最简单的就是拿它比较，不是吗？只要我们手中有故障点前后的有效性能诊断报告Statspack，就能分析出问题出在哪里？而现实中我们往往缺少在故障之前的性能报告，对经验不是很丰富的DBA来说就像玻璃上的苍蝇无法找到出口，所以我们在Backup的同时也备份一下Statspack一定不会有坏处。</p>
<p>该书其它几章：架构的高效、SQL的高效、PL/SQL的高效这些知识不是一朝一夕就能一下子拥有的，需要无数的实践、总结最终提炼出来。人贵在自知之明，书中的一些知识点我没有明白，不明白为什么我的explain plan就是有问题，为什么我的I/O高，同时我也清楚的一点：阅读整本书的时候所有的coding都是我在sqlplus里一个一个敲的，一遍又一遍的敲能让我将语法记得更牢，同时代码也慢慢的提醒我需要去看哪块的基础知识。时常担心：如果哪天一个电话匆忙被客户叫到现场去诊断数据库，人家提供给你的notebook就只安装了SecureCRT,仔细一看还是ubuntu的系统，不会傻了吧：“对不起啊，我平时都用toad，EM&#8230;，sqlplus我 不太熟&#8230;&#8230;”客户肯定也傻了。什么叫professional呢?</p>
<p>读完本书还有一个感触，就是再难再深奥的东西都是在基础的知识点上建立而来的，万变不离其宗。大多数转行做DBA的人刚一看到latch、执行计划、索引都会蒙，至少我是的。慢慢随着接触的时间一天天增加，对基础知识的理解一点点加深、透彻，我想，要做到一个高级DBA也不会是想像中的很么难。</p>
<p>阅读完书时的初衷是想写点什么，后来一想自己七天写六字的水平还是算了吧，最后在<a href="http://bitirainy.spaces.live.com/" target="_blank">biti大师</a>的<a href="http://bitirainy.spaces.live.com/blog/cns!6AECD20E2E08EE3A!1265.entry" target="_blank">鼓励</a>下乱写了一通，纯粹就当看完了书mark一下，仅此而已。同时期待<a href="http://www.dbanotes.net/" target="_blank">Fenng</a>一行三人的处女作《<a href="http://antognini.ch/about/" target="_blank">Troubleshooting Oracle Performance</a>》<a href="http://www.dbanotes.net/database/troubleshooting_oracle_performance.html" target="_blank">中文版</a>早日上架。</p>
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