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Difference between scaling horizontally and vertically for databases [closed]
...strength and weaknesses of these databases and scalability is one of them. What is the difference between horizontally and vertically scaling these databases?
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Rails raw SQL example
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@baash05 What do you mean by "in favour of accessing it via the class." - this talks about how to access the table without a model ariond it
– Yo Ludke
Dec 3 '14 at 10:39
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Most efficient way to remove special characters from string
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@downvoter: Why the downvote? If you don't explain what you think is wrong, it can't improve the answer.
– Guffa
Aug 6 '11 at 18:56
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psycopg2: insert multiple rows with one query
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Just confirmed this improvement myself. From what I've read psycopg2's executemany doesn't do anything optimal, just loops and does many execute statements. Using this method, a 700 row insert to a remote server went from 60s to <2s.
– Nelson
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How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?
So if I have to choose between a hash table or a prefix tree what are the discriminating factors that would lead me to choose one over the other. From my own naive point of view it seems as though using a trie has some extra overhead since it isn't stored as an array but that in terms of run time (a...
When should we call System.exit in Java
In Java, What is the difference with or without System.exit(0) in following code?
10 Answers
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How to run multiple Python versions on Windows
...arted a python instance, from the command line, by simply typing python.
What this does under Windows, is to trawl the %PATH% environment variable, checking for an executable, either batch file (.bat), command file (.cmd) or some other executable to run (this is controlled by the PATHEXT environme...
Recommended SQL database design for tags or tagging [closed]
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@Quilang. I still believe it depends on what you are up to :) I implemented it in both ways in different projects. In my last one I ended up with a 3 table solution because I needed a "tag-type" (or some other meta information on the tag) and could reuse some code ...
Java Replacing multiple different substring in a string at once (or in the most efficient way)
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Exactly what i needed my friend :)
– GOXR3PLUS
Jan 22 '19 at 13:25
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HTML anchor link - href and onclick both?
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Just return true instead?
The return value from the onClick code is what determines whether the link's inherent clicked action is processed or not - returning false means that it isn't processed, but if you return true then the browser will proceed to process it after your function returns an...