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人们在使用SQL时往往会陷入一个误区，即太关注于所得的结果是否正确，而忽略了不同的实现方法之间可能存在的 性能差异，这种性能差异在大型的或是复杂的数据库环...
人们在使用SQL时往往会陷入一个误区，即太关注于所得的结果是否正确，而忽略了不同的实现方法之间可能存在的 性能差异，这种性能差异在大型的或是复杂的数据库环
-people in the use of SQL often mired in a dangerous zone, that is too interested in the results is correct, neglect of different implementations may exist between the performance difference This difference in the performance of large or complex database Central
- 2023-02-03 01:40:03下载
- 积分：1
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此课件包含了《UMTS 的网络结构及协议》、《WCDMA 空中接口及无线技术》、《爱立信 WCDMA核心网信令》、《第三代移动通信的发展及主要的无线技术》、《I...
此课件包含了《UMTS 的网络结构及协议》、《WCDMA 空中接口及无线技术》、《爱立信 WCDMA核心网信令》、《第三代移动通信的发展及主要的无线技术》、《IMT2000概述》、《核心网概述》等几门课程，是面向技术维护人员全面普及3G培训的教材，是掌握了移动通信基础知识后的3G入门课程。-This courseware contains
- 2022-01-28 12:34:13下载
- 积分：1
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把这本书作为一个友好的介绍用PHP编程。这
Think of this book as a friendly introduction to programming in PHP. This
book is both an introduction to programming and an introduction to PHP.
The book starts with the basics of PHP, including how to tell whether you
need to install it. (Full installation instructions are included in Appendix A.)
The book describes the basic features of PHP with examples of their use. If
you have experience with programming, you can probably just skim this section,
but if you don’t, all the programming basics are here.
The book goes on to describe the most common uses of PHP. It shows how to
write scripts for Web sites, file manipulation, databases, and other common
tasks. It provides techniques and shortcuts and warns against common errors.
Both beginners and experienced programmers can write useful scripts for
many common applications in a very short time by using the information in
the application section (Part IV) of the book.
- 2023-04-05 22:40:04下载
- 积分：1
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2000 on the network function
两千的网络功能介绍-2000 on the network function
- 2022-03-23 22:28:21下载
- 积分：1
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5年NOI论文中关于算法思想的题目及解答
5年NOI论文中关于算法思想的题目及解答-5-year paper on the algorithm NOI thinking questions and answers
- 2023-04-29 00:15:03下载
- 积分：1
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the vc memory manage book very good content and language
the vc memory manage book very good content and language-vc memory manage the book very good content and language
- 2022-12-10 05:50:02下载
- 积分：1
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.net使用手册
.net使用手册- net user s manual
- 2022-06-20 05:21:11下载
- 积分：1
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好东西值得分享，如果需要大家仔细下来看吧
好东西值得分享，如果需要大家仔细下来看吧-Good things worth sharing, if it required us to take a closer look嘿嘿
- 2022-05-25 00:48:21下载
- 积分：1
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本文档积累了大量的关于vc中常常出现的调试错误和相应的解决方法,希望对大家有帮助...
本文档积累了大量的关于vc中常常出现的调试错误和相应的解决方法,希望对大家有帮助-this document have accumulated large amounts of vc often on the debug errors and corresponding solutions, We hope to help
- 2022-01-31 10:43:11下载
- 积分：1
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latex数学文档编辑手册。。 。。。
latex数学文档编辑手册。。 。。。
-latex manual math document editor. . . . . . .
- 2023-01-16 06:50:03下载
- 积分：1
