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How to escape single quotes within single quoted strings
...and (2), or between (4) and (5), the shell will interpret that string as a one long word.
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What are the performance characteristics of sqlite with very large database files? [closed]
...Single Table
I tried to insert multiple rows into a sqlite file with just one table. When the file was about 7GB (sorry I can't be specific about row counts) insertions were taking far too long. I had estimated that my test to insert all my data would take 24 hours or so, but it did not complete ev...
Definition of “downstream” and “upstream”
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In terms of source control, you're "downstream" when you copy (clone, checkout, etc) from a repository. Information flowed "downstream" to you.
When you make changes, you usually want to send them back "upstream" so they make it into that repository so that everyone pulling from the same ...
Why does one often see “null != variable” instead of “variable != null” in C#?
...@Benjol Don't forget to always supply an empty else { } clause in case someone needs to add something there later and forgets to write the else keyword themselves. (Joke)
– Jeppe Stig Nielsen
May 3 '13 at 21:42
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Catch multiple exceptions at once?
...n ex) when (ex is ... || ex is ... )
Except that I still kind of hate the one-long-line layout and would personally lay the code out like the following. I think this is as functional as it is aesthetic, since I believe it improves comprehension. Some may disagree:
catch (Exception ex) when (
e...
How to match “anything up until this sequence of characters” in a regular expression?
...or of regex you're using, but this will
work in any of the most popular ones that can be considered "complete".
/.+?(?=abc)/
How it works
The .+? part is the un-greedy version of .+ (one or more of
anything). When we use .+, the engine will basically match everything.
Then, if there ...
Hibernate throws MultipleBagFetchException - cannot simultaneously fetch multiple bags
... the thing is, hibernate can't fetch the two collections with one query. So when you query for the parent entity, it will need 2 extra queries per result, which is normally something you don't want.
– Bozho
Jun 18 '12 at 11:19
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MongoDB relationships: embed or reference?
... records will refer to the same data it is more efficient and less error prone to update a single record and keep references to it in other places.
Document size considerations
MongoDB imposes a 4MB (16MB with 1.8) size limit on a single document. In a world of GB of data this sounds small, but it...
Can an abstract class have a constructor?
...his example, that generally abstract classes have default constructors if none have been explicitly declared
– Vic Seedoubleyew
Aug 11 '16 at 14:24
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Calculating arithmetic mean (one type of average) in Python
...-in or standard library method in Python to calculate the arithmetic mean (one type of average) of a list of numbers?
12 An...