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How to compare two dates?
...time(date1, "%d/%m/%Y") and newdate2 = time.strptime(date2, "%d/%m/%Y") to convert them to python's date format. Then, the comparison is obvious:
newdate1 > newdate2 will return False
newdate1 < newdate2 will return True
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namedtuple and default values for optional keyword arguments
I'm trying to convert a longish hollow "data" class into a named tuple. My class currently looks like this:
21 Answers
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Why unsigned integer is not available in PostgreSQL?
...< 65536);
Here is what psql gives when I try to abuse the type.
DS1=# select (346346 :: uint2);
ERROR: value for domain uint2 violates check constraint "uint2_check"
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How to access remote server with local phpMyAdmin client?
... and now your phpMyAdmin home page will change and it will show a field to select the server.
Now you can select you server and access your remote database by entering username and password for that database.
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Why does parseInt yield NaN with Array#map?
...seInt: it doesn't parse the string and returns NaN if the number cannot be converted. For instance:
console.log(parseInt("19asdf"));
console.log(Number("19asf"));
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Why does string::compare return an int?
... Similarly, if I write a < 0, the comparison is done
on the value of a, converted to an int. In practice, there
are very few cases where this makes a difference, at least on
2's complements machines where integer arithmetic wraps (i.e.
all but a very few exotics, today—I think the Unisys
mainf...
Weighted random numbers
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if you have a bag of red and blue marbles and you select a red marble from it and don't replace it is the probability of selecting another red marble still the same? In the same way, your statement "Pick elements from the bag sequentially until it is empty" produces a totall...
What is your naming convention for stored procedures? [closed]
...case of needing schema specifics, it's easy enough to find. For the casual SELECT query, it is irrelevant. In fact, I regard being able to treat tables and views the same as a big advantage.
Unlike with functions and stored procedures, the name of a table or view is unlikely to start with a verb, or...
What is the difference between Hibernate and Spring Data JPA
...like findByNameOrderByAge(String name); that will be parsed in runtime and converted into appropriate JPA queries.
Its placement atop of JPA makes its use tempting for:
Rookie developers who don't know SQL or know it badly. This is a
recipe for disaster but they can get away with it if the projec...
Is there a performance gain in using single quotes vs double quotes in ruby?
... The interp version is both interpolating and concatenating plus converting a number to a string twice. Interpolation wins if you make the results the same. See gist.github.com/810463. The real takeaway is to worry more about to_s than single or double quotes.
– Brian...