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Postgresql: password authentication failed for user “postgres”
... From the Comprehensive manual, postgresql.org/files/documentation/pdf/12/postgresql-12-A4.pdf, section 20.5: "If no password has been set up for a user, the stored password is null and password authentication will always fail for that user.". Thus, since the installation doesn't ask for a p...
Getting A File's Mime Type In Java
...ble of mime-types is quite limited, not including, for example, MSWord and PDF. So, if you want to generalize, you'll need to go beyond the built-in libraries, using, e.g., Mime-Util (which is a great library, using both file extension and content).
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那些我印象深刻的建议和教诲 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...更多人受益。
技术是你的安身立命之本
这是大学时候中文系的王老师对我说的。当时我基本不怎么上计算机的专业课，晚自习看原版教材，白天在图书馆泡着，外加去中文系听课。对从小只接受过自然科学教育的人来说，不...
Comparison of DES, Triple DES, AES, blowfish encryption for data
...tional years of silence. :) Those numbers appear to be derivable from this PDF paper: eprint.iacr.org/2013/635.pdf titled Universal security - from bits and mips to pools, lakes – and beyond.
– Jesse Chisholm
Aug 20 '15 at 21:42
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How to convert byte array to string and vice versa?
...o.
I was observing this problem when I was trying to create byte[] from a pdf file and then converting it to String and then taking the String as input and converting back to file.
So make sure your encoding and decoding logic is same as I did. I explicitly encoded the byte[] to Base64 and decode...
Scala type programming resources
...onstructs can be found in the types section of the scala reference manual (pdf).
Adriaan Moors has several academic papers about type constructors and related topics with examples from scala:
Generics of a higher kind (pdf)
Type Constructor Polymorphism for Scala: Theory and Practice (pdf) (PhD t...
Django get the static files URL in view
I'm using reportlab pdfgen to create a PDF. In the PDF there is an image created by drawImage . For this I either need the URL to an image or the path to an image in the view. I managed to build the URL but how would I get the local path to the image?
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Retrieving the COM class factory for component with CLSID {XXXX} failed due to the following error:
I developed a Windows service using C#.NET to generate PDF report. To generate PDF file I am using a third party dll. The application is running in my Windows XP platform. When I deployed the service in Windows Server 2008 64 bit version, I got this error:
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ZMQ: 基本原理 - 开源 & Github - 清泛网移动版 - 专注C/C++及内核技术
ZMQ: 基本原理0MQ-The-Theoretical-Foundation介绍与其他的基于常规理论基础的（集中）通信系统不同，几乎没有分布式通信系统的什么资料，ØMQ(ZeroMQ)是感兴趣的读者少数能请举出...
介绍
与其他的基于常规理论基础的...
Remove secure warnings (_CRT_SECURE_NO_WARNINGS) from projects by default in Visual Studio
... answered Oct 25 '14 at 15:19
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