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Is there a way to perform “if” in python's lambda
...hon language construct, approaching Perl levels of absurdity in its out-of-order evaluation--but it's what was asked for. You're seriously voting down answers for being correct?
– Glenn Maynard
Oct 18 '09 at 21:52
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About Android image and asset sizes
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What is the order of precedence for CSS?
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There are several rules ( applied in this order ) :
inline css ( html style attribute ) overrides css rules in style tag and css file
a more specific selector takes precedence over a less specific one
rules that appear later in the code override earlier rules if bo...
Simplest way to do a recursive self-join?
... m.parentID = q.PersonID
)
SELECT *
FROM q
By adding the ordering condition, you can preserve the tree order:
WITH q AS
(
SELECT m.*, CAST(ROW_NUMBER() OVER (ORDER BY m.PersonId) AS VARCHAR(MAX)) COLLATE Latin1_General_BIN AS bc
FROM mytable m
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How to study design patterns? [closed]
...me people already mentioned, practice and refactoring. I believe the right order to learn about patterns is this:
Learn Test Driven Development (TDD)
Learn refactoring
Learn patterns
Most people ignore 1, many believe they can do 2, and almost everybody goes straight for 3.
For me the key to im...
Hash collision in git
... SIMILAR" point, which is a really good point. It basically means that in order to have 2 commits with the same hash, you would need to change a significant portion of the characters in every single file (not to mention the file names, paths and the number of files).
– PieterN...
Can I concatenate multiple MySQL rows into one field?
...d in their comment, you can also sort the values before imploding it using ORDER BY:
SELECT person_id, GROUP_CONCAT(hobbies ORDER BY hobbies ASC SEPARATOR ', ')
FROM peoples_hobbies
GROUP BY person_id;
As Dag stated in his comment, there is a 1024 byte limit on the result. To solve this, run this q...
Postgresql GROUP_CONCAT equivalent?
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Note that the syntax also allows you to specify the order of values in the string (or array, using array_agg) e.g. string_agg(some_column, ',' ORDER BY some_column) or even string_agg(surname || ', ' || forename, '; ' ORDER BY surname, forename)
– IMSoP
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How do you reverse a string in place in C or C++?
... XOR swapping is slower than swapping via register on modern out-of-order processors.
– Patrick Schlüter
Aug 15 '11 at 17:42
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Why does i = i + i give me 0?
...rator -.
If an integer addition overflows, then the result is the low-order
bits of the mathematical sum as represented in some sufficiently large
two's-complement format. If overflow occurs, then the sign of the
result is not the same as the sign of the mathematical sum of the two
oper...