大约有 46,000 项符合查询结果（耗时：0.0753秒） [XML]
generate days from date range
..., the performance is surprisingly good: the above query takes 0.0009 sec.
If we extend the subquery to generate approx. 100,000 numbers (and thus about 274 years worth of dates), it runs in 0.0458 sec.
Incidentally, this is a very portable technique that works with most databases with minor adjust...
Vim: faster way to select blocks of text in visual mode
...d am aware that selecting blocks of text in visual mode is as simple as SHIFT + V and moving the arrow key up or down line-by-line until I reach the end of the block of text that I want selected.
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How do I force git pull to overwrite everything on every pull?
...whereas reset is designed around simply making your local copy match a specific commit.
You may want to consider slightly different options to clean depending on your system's needs.
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Difference between git pull --rebase and git pull --ff-only
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What will happen if I use git pull --rebase ?
git pull --rebase is roughly equivalent to
git fetch
git rebase origin/master
i.e. your remote changes (C) will be applied before the local changes (D), resulting in the following tree
A -- ...
How to get the ASCII value of a character
...in whatever encoding it's in. Therefore the result of ord('ä') can be 228 if you're using Latin-1, or it can raise a TypeError if you're using UTF-8. It can even return the Unicode codepoint instead if you pass it a unicode:
>>> ord(u'あ')
12354
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How to escape a single quote inside awk
... The sequence '\'' does the trick: it closes the single-quote literal, specifies the quote character (using an escape that is supported outside of single-quote literals) and then re-opens a new single-quote literal. You can think of it as a four-character escape sequence to get a single quote. :)
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What is `mt=8` in iTunes links for the App Store?
Does anyone know the significance of the mt parameter in App Store Links?
8 Answers
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How can I “pretty print” a Duration in Java?
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Beware of this "duration.toPeriod()" conversion. If the duration is quite big, the day portion onwards would remain as 0. The hours portion will keep growing. You will get 25h10m23s but never get the "d". The reason is there is no fully correct way to convert hours to days ...
How to continue a Docker container which has exited
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Note: -l only gets the "latest" docker. If you're like me and docker ps -a shows more than one thing that you need to start up, then you can restart "all" (-a) of them by changing the command above to docker start `docker ps -q -a`. -q just makes it "quiet" (not o...
How do you easily horizontally center a using CSS? [duplicate]
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Also... only works if you know the width of the container. If the width changes, you have to update your CSS (which stinks if the content is dynamically generated)
– BMiner
Aug 12 '11 at 14:30
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