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How can I list ALL grants a user received?
... It would be interesting to left join the role_role_privs table and then CONNECT BY PRIOR granted_role = role to recurse into transitive role privileges...
– Lukas Eder
Oct 9 '14 at 8:25
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How to join absolute and relative urls?
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@mesuutt try to make a loop and join each part with the previously joined URL.
– Cédric Julien
Apr 23 '13 at 7:35
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Convert System.Drawing.Color to RGB and Hex Value
... to develop the following two. The way I am doing it may have some problem and need your kind advice. In addition, I dont know whether there is any existing method to do the same.
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HTML5 record audio to file
What I ultimately want to do is record from the user's microphone, and upload the file to the server when they're done. So far, I've managed to make a stream to an element with the following code:
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When I catch an exception, how do I get the type, file, and line number?
..._info() into local variables, since if you get an exception in the except handler, the local vars could get kept in a circular reference and not GC'd. Best practice is to always just use slices off of sys.exc_info() instead. Or use other modules like traceback, as other posters have suggested.
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A semantics for Bash scripts?
...ripts that appear to work. However, I don't really know what's going on, and I was hoping for a more formal introduction to Bash as a programming language. For example: What is the evaluation order? what are the scoping rules? What is the typing discipline, e.g. is everything a string? What is the...
Why is reading lines from stdin much slower in C++ than Python?
I wanted to compare reading lines of string input from stdin using Python and C++ and was shocked to see my C++ code run an order of magnitude slower than the equivalent Python code. Since my C++ is rusty and I'm not yet an expert Pythonista, please tell me if I'm doing something wrong or if I'm mis...
App Inventor 2 进制转换与位运算教程 - 十六进制、二进制、补码、字节操作...
...串左侧补零
四、位运算积木块
4.1 Bitwise And（按位与）
4.2 Bitwise Or (Inclusive)（按位或）
4.3 Bitwise Or (Exclusive / XOR)（按位异或）
4.4 位运算的组合应用：提取字节
五、补码（Two’s Complement）计算 ...
How to use count and group by at the same select statement
...or example, having a table with users I want to select the different towns and the total number of users
11 Answers
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Determine the path of the executing BASH script [duplicate]
In a Windows command script, one can determine the directory path of the currently executing script using %~dp0 . For example:
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