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Transaction isolation levels relation with locks on table
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159
I want to understand the lock each transaction isolation takes on the table
For example, ...
三个退出程序消息：WM_CLOSE、WM_DESTROY、WM_QUIT区别 - C/C++ - 清泛网 -...
三个退出程序消息：WM_CLOSE、WM_DESTROY、WM_QUIT区别1、发送消息SendMessage、PostMessagePostMessage将消息放入消息队列后马上返回，而SendMessage直到窗口过程处理完消息后才返回2、三个消息...1、发送消息SendMessage、PostMessage
PostMessage将消...
How to create a numpy array of all True or all False?
... or numpy.zeros((2, 2))
Since True and False are represented in Python as 1 and 0, respectively, we have only to specify this array should be boolean using the optional dtype parameter and we are done.
numpy.ones((2, 2), dtype=bool)
returns:
array([[ True, True],
[ True, True]], dtype=b...
Performance of static methods vs instance methods
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156
In theory, a static method should perform slightly better than an instance method, all other t...
u'\ufeff' in Python string
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196
The Unicode character U+FEFF is the byte order mark, or BOM, and is used to tell the differenc...
“cannot resolve symbol R” in Android Studio
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Animate element to auto height with jQuery
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Why always ./configure; make; make install; as 3 separate steps?
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121
Because each step does different things
Prepare(setup) environment for building
./configure
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