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python-pandas and databases like mysql
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As Wes says, io/sql's read_sql will do it, once you've gotten a database connection using a DBI compatible library. We can look at two short examples using the MySQLdb and cx_Oracle libraries to connect to Oracle and MySQL and query their data di...
How do I get the SharedPreferences from a PreferenceActivity in Android?
...by only the calling application. Other two modes supported are MODE_WORLD_READABLE and MODE_WORLD_WRITEABLE. In MODE_WORLD_READABLE other application can read the created file but can not modify it. In case of MODE_WORLD_WRITEABLE other applications also have write permissions for the created file....
Getting a File's MD5 Checksum in Java
...xt"));
DigestInputStream dis = new DigestInputStream(is, md))
{
/* Read decorated stream (dis) to EOF as normal... */
}
byte[] digest = md.digest();
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When do I really need to use atomic instead of bool? [duplicate]
...stinctly different instruction on the hardware than the native, non-atomic read-modify-write sequence of a non-atomic variable.
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SmtpException: Unable to read data from the transport connection: net_io_connectionclosed
...ncorrect and had a typo. But a wrong password can also give the "Unable to read data from the transport connection: net_io_connectionclosed." error. So check both the username and password. And for Azure users, the user name is of the form "azure_guid-withoutdashes@azure.com" (eg: azure_e9e062db4bfd...
What's the difference between a Future and a Promise?
...adoc extract needs a serious workover by a decent tech author. On my fifth read-through I can just start to appreciate what it's trying to say ... and I come to this with an understanding of futures and promises already in place!
– Beetroot-Beetroot
Jan 28 '13 ...
What is meant with “const” at end of function declaration? [duplicate]
...or this class function to change a member variable of the class. However, reading of a class variables is okay inside of the function, but writing inside of this function will generate a compiler error.
Another way of thinking about such "const function" is by viewing a class function as a norma...
Const before or const after?
... left, but I think putting it on the right makes more sense. You generally read types in C++ from right-to-left, for example Object const * is a pointer to a const Object. If you put the const on the left, it would read as a pointer to an Object that is const, which doesn't really flow very well.
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How can I pipe stderr, and not stdout?
...edirect stderr to stdout and then stdout to /dev/null' -- Since one has to read redirection chains from right to left (not from left to right), we should also adapt our plain text explanation to this: 'Redirect stdout to /dev/null, and then stderr to where stdout used to be'.
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How does the Brainfuck Hello World actually work?
...ng pointer from cell X to cell X-1
...[0][0][*0*][1][0]...
2. Input
To read character you use comma ,. What it does is: Read character from standard input and write its decimal ASCII code to the actual cell.
Take a look at ASCII table. For example, decimal code of ! is 33, while a is 97.
Well,...