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How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?
I'm using the PostgreSQL database for my Ruby on Rails application (on Mac OS X 10.9).
15 Answers
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那些年 O2O创业我踩了十个坑 - 资讯 - 清泛网 - 专注C/C++及内核技术
...，不要因为战术上的勤奋而掩盖战略上的懒惰。战略方向错误，战术越勤奋造成的负面危害越大。战略方向正确，团队可以花很小的代价和精力将项目做好。
公司上线以来的战略大致分为三个阶段
1、没有战略：不断试错、寻...
How can HTML5 “replace” Flash? [closed]
... On the side of SJ, I've seen sites that bring my powerhouse of a machine to it's knees by Flash based ads. These are admittedly badly done flash ads, but it is flash. Now on a mobile phone an ad that can cause the cpu to spike to 100% is not good and I stand by SJ assertion that Flash is ...
What is the Difference Between Mercurial and Git?
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These articles may help:
Git vs. Mercurial: Please Relax (Git is MacGyver and Mercurial is James Bond)
The Differences Between Mercurial and Git
Edit: Comparing Git and Mercurial to celebrities seems to be a trend. Here's one more:
Git is Wesley Snipes, Mercurial is Denzel Washington
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Parsing command-line arguments in C?
... Really thorough answer, thanks Christian (upvoted). However, mac users should be aware that the argp approach isn't cross-platform compatible. As I found here, Argp is a non-standardized glibc API extension. It is available in gnulib so can be added to a project explicitly. However, ...
How can I access the MySQL command line with XAMPP for Windows?
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On the Mac, or at least on my Mac using a default install, I accessed it at:
/Applications/xampp/xamppfiles/bin/mysql -uroot -p
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Given final block not properly padded
...es authentication, like GCM (Galois-Counter mode) or CCM (Counter with CBC-MAC), see next point.
You normally don't want only confidentiality, but also authentication, which makes sure the message is not tampered with. (This also prevents chosen-ciphertext attacks on your cipher, i.e. helps for conf...
How can I generate UUID in C#
...or GUID is little endian. I would think that should be independent of the machine byte order.
– Jeff Walker Code Ranger
Sep 14 '13 at 18:29
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ctypes - Beginner
...nt()
{
printf("hello world\n");
}
Now compile it as a shared library (mac fix found here):
$ gcc -shared -Wl,-soname,testlib -o testlib.so -fPIC testlib.c
# or... for Mac OS X
$ gcc -shared -Wl,-install_name,testlib.so -o testlib.so -fPIC testlib.c
Then, write a wrapper using ctypes:
testlib...
OS detecting makefile
...ral different computers and several different operating systems, which are Mac OS X, Linux, or Solaris. For the project I'm working on, I pull my code from a remote git repository.
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