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Get yesterday's date in bash on Linux, DST-safe
...that switching between summer and winter time is always done during night, if I understand correctly?
– Nicolas Raoul
Mar 28 '17 at 3:38
2
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jQuery - multiple $(document).ready …?
...emember seeing $(function() { // do stuff }); for the first time, and how difficult it was to Google the explanation? $(document).ready communicates so much more for so little...
– Matt Montag
Oct 15 '13 at 20:19
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Reusing a PreparedStatement multiple times
... // ...
statement.addBatch();
i++;
if (i % 1000 == 0 || i == entities.size()) {
statement.executeBatch(); // Execute every 1000 items.
}
}
}
}
As to the multithreaded environments, you don't need to worry about this if...
Unable to install gem - Failed to build gem native extension - cannot load such file — mkmf (LoadErr
... 12.04
Usually, the solution is:
sudo apt-get install ruby-dev
Or, if that doesn't work, depending on your ruby version, run something like:
sudo apt-get install ruby1.9.1-dev
Should fix your problem.
Still not working? Try the following after installing ruby-dev:
sudo apt-get i...
Representing graphs (data structure) in Python
...ill be the underlying structure for our Graph class. You also have to know if these connections are arcs (directed, connect one way) or edges (undirected, connect both ways). We'll handle that by adding a directed parameter to the Graph.__init__ method. We'll also add some other helpful methods.
im...
How to delete a certain row from mysql table with same column values?
...
This only deletes one row. If there were 3 with this user and product id then 2 would remain.
– Rob
Aug 22 '13 at 10:48
10
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Convert Pixels to Points
...
There are 72 points per inch; if it is sufficient to assume 96 pixels per inch, the formula is rather simple:
points = pixels * 72 / 96
There is a way to get the configured pixels per inch of your display in Windows using GetDeviceCaps. Microsoft has a...
PHP - Modify current object in foreach loop
I was wondering if it is possible to edit the current object that's being handled within a foreach loop
2 Answers
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Secure Web Services: REST over HTTPS vs SOAP + WS-Security. Which is better? [closed]
...t of a cop-out but the decisions about how much protection is actually justified (not just what would be cool to build) need to be made by those who know the problem intimately.
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How can I rename a database column in a Ruby on Rails migration?
...le_name, :old_column, :new_column
end
def self.down
# rename back if you need or do something else or do nothing
end
end
For Rails 3.1 use:
While, the up and down methods still apply, Rails 3.1 receives a change method that "knows how to migrate your database and reverse it when the ...