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Copying PostgreSQL database to another server
...s to copy from local to remote and the second one is from remote to local. More -> https://www.postgresql.org/docs/9.6/app-pgdump.html
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What's the absurd function in Data.Void useful for?
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How to concatenate text from multiple rows into a single text string in SQL server?
... FROM dbo.Students ST2
) [Main]
You can do the same thing in a more compact way if you can concat the commas at the beginning and use substring to skip the first one so you don't need to do a sub-query:
SELECT DISTINCT ST2.SubjectID,
SUBSTRING(
(
SELECT ','+ST1....
How do I format a date in Jinja2?
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{{ car.date_of_manufacture|datetime('full') }}
which looks nicer and is more maintainable. Another common filter is also the "timedelta" filter, which evaluates to something like "written 8 minutes ago". You can use babel.dates.format_timedelta for that, and register it as filter similar to the d...
What is a practical use for a closure in JavaScript?
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Django auto_now and auto_now_add
...u Dmitry. I'm curious as to why the two fields threw errors.. And I'm even more curious as to why you think writing your own custom save() method is better?
– hora
Nov 15 '09 at 10:51
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What does ||= (or-equals) mean in Ruby?
...aight up what it is? I'm sure it would have spared both you and the reader more work. Downvoted.
– theGreenCabbage
Oct 24 '16 at 18:46
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'AND' vs '&&' as operator
...y people thinking they are exactly the same thing and the answers here are more testimonials.
– Marco Demaio
May 24 '11 at 15:44
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Giving UIView rounded corners
...ed me an hour of fighting with an image editor and would have made my view more brittle to color / sizing changes. Thanks!
– Justin Searls
Feb 20 '10 at 16:43
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How to deal with floating point number precision in JavaScript?
...th integers, e.g. do money
calculations entirely in cents. But
this is more work and has some
drawbacks.
Note that the first point only applies if you really need specific precise decimal behaviour. Most people don't need that, they're just irritated that their programs don't work correct...