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How to list active / open connections in Oracle?
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116
For a more complete answer see:
http://dbaforums.org/oracle/index.php?showtopic=16834
sele...
What is the difference between a thread and a fiber?
...including all the fibers that are part of that kernel thread.
In section 11.4 "Processes and Threads in Windows Vista" in Modern Operating Systems, Tanenbaum comments:
Although fibers are cooperatively scheduled, if there are multiple
threads scheduling the fibers, a lot of careful synchroni...
Use numpy array in shared memory for multiprocessing
... logger.setLevel(logging.INFO)
# create shared array
N, M = 100, 11
shared_arr = mp.Array(ctypes.c_double, N)
arr = tonumpyarray(shared_arr)
# fill with random values
arr[:] = np.random.uniform(size=N)
arr_orig = arr.copy()
# write to arr from different processes
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Can't find the 'libpq-fe.h header when trying to install pg gem
...part of the libpq-dev package (at least in the following Ubuntu versions:
11.04 (Natty Narwhal), 10.04 (Lucid Lynx), 11.10 (Oneiric Ocelot), 12.04 (Precise Pangolin), 14.04 (Trusty Tahr) and 18.04 (Bionic Beaver)):
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/usr/include/postgresql/libpq-fe.h
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So try installing libpq-dev or its equ...
Understanding garbage collection in .NET
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edited Jun 16 '13 at 16:11
answered Jun 16 '13 at 8:16
Ha...
What's the need of array with zero elements?
...lear, the original code in the question is still not standard in C99 (nor C11), and would still be considered a hack. The C99 standardization must omit the array bound.
– M.M
May 6 '17 at 12:49
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Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...文本编辑器和一个能解释执行的脚本解释器就可以了。
OS
当前主流的操作系统都支持shell编程，本文档所述的shell编程是指Linux下的shell，讲的基本都是POSIX标准下的功能，所以，也适用于Unix及BSD（如Mac OS）。
Linux
Linux默认安...
How to programmatically take a screenshot on Android?
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answered Apr 13 '11 at 14:53
taralocataraloca
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Lost httpd.conf file located apache [closed]
..._FILE="/etc/apache2/apache2.conf"
Reference:
http://commanigy.com/blog/2011/6/8/finding-apache-configuration-file-httpd-conf-location
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Pip install Matplotlib error with virtualenv
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