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How can I map True/False to 1/0 in a Pandas DataFrame?
...me that has boolean True/False values, but for further calculations I need 1/0 representation. Is there a quick pandas/numpy way to do that?
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How to update SQLAlchemy row entry?
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137
user.no_of_logins += 1
session.commit()
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SQL injection that gets around mysql_real_escape_string()
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Consider the following query:
$iId = mysql_real_escape_string("1 OR 1=1");
$sSql = "SELECT * FROM table WHERE id = $iId";
mysql_real_escape_string() will not protect you against this.
The fact that you use single quotes (' ') around your variables inside your query is what protects...
How to shorten my conditional statements
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15 Answers
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How to use glOrtho() in OpenGL?
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151
Have a look at this picture: Graphical Projections
The glOrtho command produces an "Oblique"...
The maximum value for an int type in Go
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10 Answers
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Why prefer two's complement over sign-and-magnitude for signed numbers?
I'm just curious if there's a reason why in order to represent -1 in binary, two's complement is used: flipping the bits and adding 1?
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Java synchronized static methods: lock on object or class
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129
Since a static method has no associated object, will the synchronized keyword lock on the ...
Remove duplicated rows using dplyr
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139
Note: dplyr now contains the distinct function for this purpose.
Original answer below:
li...