Zmrss Reader » August 20, 2007

Feeds

11984 items (11984 unread) in 19 feeds

Blog (67 unread)

• ~依米岛~ (67 unread)

Google (2043 unread)

• Google 黑板报 -- Google 中国的博客网志 (1063 unread)
• 疯狂的设计 (980 unread)

Oracle (3668 unread)

• Ask Tom MOST RECENT ARTICLES (2743 unread)
• Ask Tom HOT ARTICLES (359 unread)
• Ask Tom MOST POPULAR (46 unread)
• Ask Tom MOST POPULAR (10) (46 unread)
• Mark Rittman's Oracle Weblog (273 unread)
• Oracle Professional (201 unread)

OracleERP (1622 unread)

• AppsBI : Applications Business Intelligence (188 unread)
• Oracle BI Publisher Blog (508 unread)
• AMIS Technology blog (926 unread)

ReadBlog (1874 unread)

• 王建硕 (375 unread)
• DBA's notes (1024 unread)
• Chanel [K] (475 unread)

nix (368 unread)

• FreeBSD Project News (368 unread)

OpenSource (370 unread)

• Open Technology and Business Forge (370 unread)

TechNews (1829 unread)

• BusinessWeek Online -- Tech Beat (1829 unread)

Design (143 unread)

• UCDChina.com (143 unread)

(13 unread)

• August 20, 2007
• 18:42

  paging through results on the web.

   » ‎ Ask Tom MOST RECENT ARTICLES
  <code>I have a Search field in my form. When my user enters a value in the Search field, I want to display the first 10 rows which match the query, then the next 10..and so on. I will give him 2 button (Previous 10 & Next 10) options. How do I ...
• 18:42

  Oracle Database recursive table relationships

   » ‎ Ask Tom MOST RECENT ARTICLES
  <code>Sorry if this may seem a silly question but I havn't been able to get a clear definition of a recursive relationship and how to apply it in a Query. </code>
• 18:42

  index fragmentation

   » ‎ Ask Tom MOST RECENT ARTICLES
  <code>Hi Tom, i have a question about the index fragmentation, on the famous white paper "How to stop defragmenting and start living: the definitive world of fragmentation" by Bhaskar Himatsingka and Juan Loaiza, on section 4.2, they provide a scr...

• 16:45

  Sprint's Comcast Pitch

   » ‎ BusinessWeek Online -- Tech Beat
  Pivot, the wireless service from cable companies and Sprint, seems to work pretty well. What has your experience been?

  

  

• 9:59

  用最少的钱获取一个 Oracle Metalink 账户

   » ‎ DBA's notes

  &copy作者：Fenng 发布在 dbanotes.net

  尽管很多人都在抱怨 Oracle 的 License 价格不菲，可实际上也有一些省钱的空子可钻。很多人买 Oracle 服务，其实不过是想获取 Metalink 访问权限而已。最少要多少钱可以获取一个 Oracle Metalink 账户?

  可能有的人还不知道，你最少只需要 75 美元，就可以获取一个 Metalink 账户，为期一年。用 75 美元买什么产品呢? Oracle Collaboration Suite! 这 75 美元包括 60 美元的单用户永久 License ，以及一个 15 美元的软件更新 License 与支持服务，也就你可以获取一个 Metalink 账户。

  大约 500 块就可以搞定，个人都承担的起。尤其是当前美元贬值的情况下 :)

  相关文章|Related Articles

  • 书写历史的甲骨文--ORACLE公司传奇
  • Ora-03113 错误分析
  • ORA-02248
  • Tom 的 Expert one on one 的一个Bug

  评论数量(9)|Add Comments

  本文网址：[www.dbanotes.net]

  

  

• 8:42

  Pivot Query

   » ‎ Ask Tom MOST POPULAR
  <code>Please state an example of pivot query. I know that in cardinality I've 2 columns, so how can I show them in columnar form and I know the cardinality is 4. Please also illustrate method of Varray and Nested Tables. Regards Puneet </code...

• 8:42

  Pivot Query

   » ‎ Ask Tom MOST POPULAR (10)
  <code>Please state an example of pivot query. I know that in cardinality I've 2 columns, so how can I show them in columnar form and I know the cardinality is 4. Please also illustrate method of Varray and Nested Tables. Regards Puneet </code...

• 8:42

  Validation

   » ‎ Ask Tom MOST RECENT ARTICLES
  <code>Hi Tom, I'm working on a system where users can import payment data, and there's also a facility to load payment detail files from other systems. I need to develop a utility for validating the data and reporting back if validation has fai...
• 8:42

  ETL - Using the wrong tool for the job

   » ‎ Ask Tom MOST RECENT ARTICLES
  <code>First, thanks so much for all the work you do on this site. I've learned so much and it's a real blessing. I've also really enjoyed your Expert Oracle Architecture book. My company has chosen Informatica as its ETL tool. We're using Oracl...
• 8:42

  Clarificaion about optimizer_dynamic_sampling

   » ‎ Ask Tom MOST RECENT ARTICLES
  <code>Hi, From the 9.2 Oracle documenation: "The cardinality statistic is used, if it exists. If there is a predicate, dynamic sampling is done with a table hint and cardinality is not estimated. To force cardinality estimation even for an ana...

• 7:56

  社区 —— 下一代互联网个性化技术的曙光

   » ‎ Google 黑板报 -- Google 中国的博客网志
  发表者：Google（谷歌)中国研究院副院长 张智威
  
  （本文综述了搜索引擎的历史，并包括了谷歌中国为了支持下一代智能搜索所做出的努力）
  
  门户网站，作为互联网第一代高速公路，将网上信息以类似图书馆的形式整理起来。在最初的门户网站中找寻信息，用户通常需要多次点击才能找到答案。举一个在北京机场附近找别克经销商的例子。用户需要打开一个个类似这样的树状分支：汽车->别克->经销商->北京，然后再查看在北京机场附近是否有这样的经销商。所以搜索引擎的迅速崛起正是因为搜索引擎仅需一次点击即可更快速地找到相关信息，大大提升了用户使用的效率。
  
  早期的搜索引擎技术是基于传统的信息采集模型，依靠词频来排序。Google（谷歌）通过引入 Pagerank 机制，引发了搜索引擎的变革：一个网页如果被多个重要页面引用，那么它在搜索结果中将有较高排名。但是，至今仍没有搜索引擎能够真正的将个人偏好引入到排名体系中。为了将用户使用习惯引入排名标准，下一代搜索引擎必须研究、学习每位用户的真实信息，将这些信息转化为可扫描的模型，并利用这些信息来协助搜索。不幸的是，个性化搜索面临至少两大技术上的挑战：首先，个人资料经常缺失或准确性较低；其次，相对于互联网中的信息，收集到的用户信息太少了，以至于我们无法有效的处理数据。也正是因为这些原因，个性化搜索已经被讨论了很多年，但至今仍未见到一个卓有成效的解决方案。
  
  有趣的是，近年来，“上网社交”成为互联网发展的又一热潮，这一变化给个性化搜索带来新的曙光。用户们不仅可以上网查找信息，而且也会在不同程度上参与网络社交活动（打牌、聊天、购物或者约会等等）。我们可以通过他们的行为很好的了解用户。例如，一个经常和大学生交流的用户很有可能就是一位大学生。同理，经常光顾迪斯尼企鹅俱乐部网站的很可能是孩子。当前，以下技术难题很具有挑战性：
  
  1. 如何根据大量的网络活动信息了解用户；
  
  2. 如何在保护个人隐私的同时利用收集到的信息去支持个性化服务。
  
  与天涯合作的谷歌社区产品上线，使谷歌向建立支持个性化服务的下一代互联网搜索迈出了的重要一步。在今年年初新成立的谷歌研究院，作为重点研究方向之一，我们已经研发了几个并行算法来发掘海量的数据，以及在保护隐私的前提下，检测垃圾信息。当然，虽然这些优点无法立刻在我们的社区产品中得到体现，但是我们的平行算法将很快在根据用户匹配个性化的搜索结果方面发挥强大威力。
  
  经常访问谷歌的网站，您将会了解我们这个宏伟的计划。
  
  欢迎试用天涯问答：[wenda.tianya.cn]
  天涯来吧: [laiba.tianya.cn]

• 6:58

  BIP & Disco get Groovy

   » ‎ Oracle BI Publisher Blog

  No not that Groovy. With the 10.1.3.3 release there is an important new feature for any of you Disco inferno's out there. You can now have BIP publish your Disco workbooks using templates, so its no longer a case of WYSIWYG in your Disco PDF output you can build templates to your hearts content. Whats more, its simple.

  In a nutshell - use the BIP UI to pull in a workbook and create a report, use the template builder for Word to browse for your workbook, create and test the template then deploy back to the server et voila!

  Ok, it was a small nut - thankfully the King of Disco himself, Abhinav has blogged the integration in his latest and greatest, there's pictures too which always makes life more interesting - [oraclebi.blogspot.com]

  Enjoy and thanks Abhinav, you gotta teach me that 'do the hustle' thang sometime ... get down tonight! 

• 0:00

  Convert a decimal to it's fraction representation

   » ‎ Ask Tom HOT ARTICLES
  Hello, This is math/algebra question, but I was interested to see if there was a sql based solution as I am pleasantly surprised by the depth and breath of solutions on this site. At our company, we print labels, brochures etc. For each print j...