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How to find the installed pandas version
...-dev
sphinx: 1.2.2
patsy: 0.3.0
dateutil: 1.5
pytz: 2012c
bottleneck: None
tables: 3.1.1
numexpr: 2.2.2
matplotlib: 1.4.2
openpyxl: None
xlrd: 0.9.3
xlwt: 0.7.5
xlsxwriter: None
lxml: 3.3.3
bs4: 4.3.2
html5lib: 0.999
httplib2: 0.8
apiclient: None
rpy2: 2.5.5
sqlalchemy: 0.9.8
pymysql: None
psycopg2:...
PL/SQL, how to escape single quote in a string?
...ting data.
Here's a very quick example:
Lets say we have a very simple table, Customers, that has 2 columns, FirstName and LastName. We need to move the data into Customers2, so we need to generate a bunch of INSERT statements.
Select 'INSERT INTO Customers2 (FirstName, LastName) ' ||
'...
Capture key press (or keydown) event on DIV element
...n't like it - the div focus border, set outline: none in the CSS.
See the table of keycodes for more keyCode possibilities.
All of the code assuming you use jQuery.
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Aligning textviews on the left and right edges in Android layout
...
For dynamic tables, you can do : TableRow.LayoutParams col1Params = new TableRow.LayoutParams(); // Wrap-up the content of the row col1Params.height = LayoutParams.WRAP_CONTENT; col1Params.width = LayoutParams.WRAP_CONTENT; //...
Simplest way to profile a PHP script
...m query");
// Get all the data
$select_query = "SELECT * FROM data_table";
$result = mysql_query($select_query);
prof_flag("Retrieve data");
$rows = array();
$found_data=false;
while($r = mysql_fetch_assoc($result))
{
$found_data=true;
$rows[] = $r;
}
prof_...
Naming of enums in Java: Singular or Plural?
...
In the same way that when you are defining a table name in a database or a class in Java you use singular for enums it's also the best option. Just see how you are going to use it.
Let's write an example:
public enum Day {
SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY,...
INSERT … ON DUPLICATE KEY (do nothing)
I have a table with a unique key for two columns:
3 Answers
3
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Initialize class fields in constructor or at declaration?
...l/et al
I always think of the field listing at the top of a class as the table of contents (what is contained herein, not how it is used), and the constructor as the introduction. Methods of course are chapters.
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Programmer Puzzle: Encoding a chess board state throughout a game
... we can determine all the legal moves from the current position in a predictable and deterministic way and state which we’ve chosen. This then goes back to the variable base encoding mentioned above. White and Black have 20 possible moves each on their first move, more on the second and so on.
Co...
How do you get a timestamp in JavaScript?
...wsers you can use Date.now() to get the UTC timestamp in milliseconds; a notable exception to this is IE8 and earlier (see compatibility table).
You can easily make a shim for this, though:
if (!Date.now) {
Date.now = function() { return new Date().getTime(); }
}
To get the timestamp in seco...