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how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
...ww.postgresql.org/docs/9.3/static/plpgsql-control-structures.html, example 40-2 right at the bottom.
That's usually the easiest way. You can do some magic with rules, but it's likely going to be a lot messier. I'd recommend the wrap-in-function approach over that any day.
This works for single row...
How to delete migration files in Rails 3
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Chris Frederick
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answered Oct 6 '10 at 16:56
Fábio BatistaFábio B...
Can PHP cURL retrieve response headers AND body in a single request?
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One solution to this was posted in the PHP documentation comments: http://www.php.net/manual/e...
How to load JAR files dynamically at Runtime?
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edited Jan 8 '19 at 11:41
Konrad Rudolph
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Convert two lists into a dictionary
...ke this:
>>> keys = ['a', 'b', 'c']
>>> values = [1, 2, 3]
>>> dictionary = dict(zip(keys, values))
>>> print(dictionary)
{'a': 1, 'b': 2, 'c': 3}
Voila :-) The pairwise dict constructor and zip function are awesomely useful: https://docs.python.org/3/library/...
setBackground vs setBackgroundDrawable (Android)
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403
It's deprecated but it still works so you could just use it. But if you want to be completly c...
How to save CSS changes of Styles panel of Chrome Developer Tools?
...file(s) and start editing to get Chrome apply the local version (date 201604.12).
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What is the difference between the dot (.) operator and -> in C++? [duplicate]
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Generics in C#, using type of a variable as parameter [duplicate]
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Best way to convert string to bytes in Python 3?
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