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Why are Subjects not recommended in .NET Reactive Extensions?
...GetMessages()
{
//Do some work here that gets messages from a queue,
// file system, database or other system that cant push
// new data at us.
//
//This may return an empty result when no new data is found.
}
}
The reason I really don't like...
How to run an EXE file in PowerShell with parameters with spaces and quotes
...ext 3\sublime_text.exe' directly in the console and it's working, but in a batch file I get an error saying '& was unexpected at this time.'
– Joe Zim
Jun 30 '14 at 4:33
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Reading 64bit Registry from a 32bit application
...
Nice hint, it allows to manipulate the registry in a batch. Use reg.exe /? to get more info...
– Matt
Aug 29 '18 at 6:47
add a comment
...
Sorting arrays in NumPy by column
...on for the different proposals:
import numpy as np
table = np.random.rand(5000, 10)
%timeit table.view('f8,f8,f8,f8,f8,f8,f8,f8,f8,f8').sort(order=['f9'], axis=0)
1000 loops, best of 3: 1.88 ms per loop
%timeit table[table[:,9].argsort()]
10000 loops, best of 3: 180 µs per loop
import pandas as...
Escape double quotes in parameter
...I cannot quickly reproduce the symptoms: if I try myscript '"test"' with a batch file myscript.bat containing just @echo.%1 or even @echo.%~1, I get all quotes: '"test"'
Perhaps you can try the escape character ^ like this: myscript '^"test^"'?
...
What is a stream?
...e the already read data is deleted. A one-way-ticket...or basically just a queue without storing persistence.
So do we need queues? You decide.
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What algorithm gives suggestions in a spell checker?
...pelled word.
If Levensthein Distance <= 3, store the word in a Priority Queue.
If two words have same edit distance, the one with higher frequency is grater.
Print the top 10 items from Priority Queue.
Optimization
You can eleminate the words in subtree of current node if the edit distance o...
Improving bulk insert performance in Entity framework [duplicate]
...rate round trip to the database. Awesome isn't it? Even DataSets supported batch processing. Check this article for some workaround. Another workaround can be using custom stored procedure accepting table valued parameter but you need raw ADO.NET for that.
...
Java: notify() vs. notifyAll() all over again
...air. i.e. each call to notify might wake the same thread again (the thread queue in the monitor is NOT FAIR or FIFO). However the scheduler is guaranteed to be fair. Which is why in most cases where you have more than 2 threads you should prefer notifyAll.
– Yann TM
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REDHAT 6.4 X64下ORACLE 11GR2静默安装 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...所需要的操作系统用户和组
具体命令
#groupadd -g 5000 oinstall
#groupadd -g 5001 dba
# useradd -m -g oinstall -G dba oracle
# passwd oracle
7、配置oracle 用户的环境变量
其实安装的时候有很多变量，很多是并不是必须的，以上四个是...