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Description: 在SQL中删除重复记录
学习sql有一段时间了，发现在我建了一个用来测试的表（没有建索引）中出现了许多的重复记录。后来总结了一些删除重复记录的方法，在Oracle中，可以通过唯一rowid实现删除重复记录；还可以建临时表来实现...这个只提到其中的几种简单实用的方法，希望可以和大家分享（以表employee为例）。-SQL delete duplicate records sql learning for a long time, I found in a building used for the test (not built Index) There's a lot of duplication of records. Later up in the deletion of duplicate records, Oracle, can only achieve rowid delete duplicate records; Also temporary tables can be built to achieve ... the only mention of several simple, practical methods, and we hope to share (table employee example).
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Size: 1555 |
Author: 叶 |
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Description: _NET和J2EE该相互学习什么 Application的Framework竟然达到了55个，并且还在日益增加。事实上J2EE开发的软肋不在于Control这个层面，而是在View。许多天才的精力都耗在重复制造轮子上，却没有想办法去完善一个或者多个Framework，这不得不让人感到痛心啊！在这一点，J2EE是不是得向.NET好好学习一下呢？在.NET的世界里，最受关注的应该是控件的开发了，一个设计良好，功能强大的控件对于提高开发效率无疑是极好的助推器。很多.NET的开发人员都将精力花在设计控件上，.NET就像一个聚宝盆一样，不断汇聚开发人员智慧结晶。在J2EE的世界里，为了减少这种资源浪费的情况，Wicket
Framework的出现了。它强调组件设计和组件重用，让开发人员集中精力于组件的开发，从而增强Framework的功能已经易用性。但愿，Wicket
-Garage and the J2EE Application learn from each other what the Framework has reached 55 and is still growing. In fact J2EE development weakness lies not in the level of Control, but the View. Many are gifted energy consumption in duplicate on wheels, but did not try to perfect one or more Framework, which compelled people to feel sad ah! At this point, is not a J2EE to.NET can learn from it? In.NET world, the most concern is the development of the controls, a well-designed, powerful controls for the improvement of development efficiency is undoubtedly an excellent booster. A lot.NET developers will be spent on design controls,.NET as a cornucopia, the convergence of crystallization of the wisdom developers. J2EE in the world, in order to reduce wastage of resources, Wicket Framework em
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Size: 4410 |
Author: 王勇 |
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Description: 对文件进行字节比较,查看指定目录内是否存在同样的文件。当我们硬盘上资料放得太多，清除重复的文件特别有用。-the documents byte comparison, check whether the specified directory exists within the same document. When a hard disk up too much information, removing duplicate documents particularly useful.
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Size: 58368 |
Author: xc |
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Description: 重复文件筛查器，主要筛查重复文件，批量删除等，可以用于同一文件夹下，多种文件的筛查。-Screening of duplicate files, and repeat the main document screening, bulk delete and so on, can be used in the same folder, the screening of a wide range of documents.
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Size: 915456 |
Author: 师文庆 |
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Description: 实现对输入图像检测Harris角点的功能，并且可以根据自定义的模板大小消除局部重复角点。-Input image to achieve the Harris corner detection function, and can customize the template according to the size of the local elimination of duplicate corner.
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Size: 366592 |
Author: 陈全齐 |
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Description: 对字符串按从小到大的顺序排列,然后删除重复字符-The string by the order from small to large, then delete the duplicate characters
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Size: 1024 |
Author: 或者 |
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Description: 用于删除重复的数据，是一个Fortran写的数据筛选-Used to delete duplicate data, is a Fortran write data screening
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Size: 11264 |
Author: SHEN |
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Description: 删除重复的行，C语言实现，简单遍历，指针实现-Delete duplicate rows
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Size: 1024 |
Author: jys |
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Description: 输入时检测重复,在A列检查输入,如果重复,不允许输入-chick duplicate input
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Size: 14336 |
Author: wang |
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Description: 代码识别重复的MP3的基于ID3标签信息。初学者可下载做参考。-Code identifies duplicate MP3 ID3 tag information based. Beginners can be downloaded for reference.
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Size: 74752 |
Author: 断了的弦 |
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Description: 试题源代码 用指针法去除重复元素 代码简洁 应用到两个循环结构 很容易看懂 还有一些STL的源代码和代码的题目-Questions the source code with the pointer code simple method to remove duplicate elements applied to the two loop structure is easy to understand some of the STL source code and code topics
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Size: 41984 |
Author: 夜羽 |
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Description: VB删除重复行,主要为TXT文件，可以直接运行-VB Remove duplicate rows, mainly for TXT files can be run directly
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Size: 8192 |
Author: dewy |
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Description: VISUAL DUPLICATE BASED TOPIC LINKING USING A ROBUST VIDEO SIGNATURE
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Size: 94208 |
Author: ashish |
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Description: Easy Duplicate Finder 1.4.3 (Delete & Find Duplicate Files) -LegalTorrents
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Size: 649216 |
Author: tamilan |
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Description: Vistanita Duplicate Finder 是用来查找系统中重复文件的工具，可以查找重复的文件，也可以查找重复的MP3、图片等。
如果汉化搜索结果列表标题，则会导致软件部分功能无法使用，所以放弃列表的汉化，保留原始英文字符。少量的英文字符并不会影响使用-Vistanita Duplicate Finder is used to duplicate file finder system tools, can find duplicate files, can also find duplicate MP3, pictures etc..
If the Chinese search results list title, will cause the partial functions of the software can not be used, so give up the list of Chinese, to retain the original English character. The use of English character did not affect the amount of
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Size: 1435648 |
Author: 胡海龙 |
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Description: Find Duplicate Indexes
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Size: 105472 |
Author: Sajal |
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Description: The Clone method allows you to create a duplicate Recordset an existing Recordset. You can use this method to create multiple, duplicate Recordset, particularly if you want to edit more than one current record in a set of records. This method is much more efficient than creating, opening, and closing a new Recordset equal to the original. -The Clone method allows you to create a duplicate Recordset an existing Recordset. You can use this method to create multiple, duplicate Recordset, particularly if you want to edit more than one current record in a set of records. This method is much more efficient than creating, opening, and closing a new Recordset equal to the original.
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Size: 3072 |
Author: yogesh |
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Description: 对字符串按从小到大的顺序排列,然后删除重复字符-The string by the order small to large, then delete the duplicate characters
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Size: 1024 |
Author: ooh1h752shiawe |
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Description: 对字符串按从小到大的顺序排列,然后删除重复字符-The string by the order small to large, then delete the duplicate characters
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Size: 1024 |
Author: jzhphhifan23 |
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Description: When Adding a record check to see if the new entry # into the will be a duplicate if so send message to user notifiying that he needs a different entry # Thanks to luke for help on this one- When Adding a record check to see if the new entry # into the will be a duplicate if so send message to user notifiying that he needs a different entry # Thanks to luke for help on this one
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Size: 410624 |
Author: yogesh shrikhande |
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