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MySQL vs PostgreSQL for Web Applications [closed]

... you go choosing a DBMS based on the advice below, do some research to see if it's still accurate. Check for newer answers below. Better? MySQL is much more commonly provided by web hosts. PostgreSQL is a much more mature product. There's this discussion addressing your "better" question App...
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Is there a performance impact when calling ToList()?

...py of the array (more generally IEnumerable<T>), otherwise future modifications of the original array will change on the source T[] also which wouldn't be desirable generally. I would like to reiterate this will only make a difference with a huge list, copying chunks of memory is quite a fas...
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How to determine whether a substring is in a different string

...learning JS after learning Python, for this you would need to add loads of if else statements and other things. So, I just wanted to remind myself of how its done in Python, this answer made me say to myself 'Of course!', I mean things like this in Python are just so trivial you never give them much...
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Media Player called in state 0, error (-38,0)

... What if we don't want it to start right away? Even if I initialize my player and wait a minute or so, the first time i try to play it, it has this error unless I call .start() in onPrepared – Elliptica ...
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Parsing boolean values with argparse

...s, but with the "correct" parse error from argparse: def str2bool(v): if isinstance(v, bool): return v if v.lower() in ('yes', 'true', 't', 'y', '1'): return True elif v.lower() in ('no', 'false', 'f', 'n', '0'): return False else: raise argparse.Argum...
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Deleting all files in a directory with Python

...stdir and os.remove: import os filelist = [ f for f in os.listdir(mydir) if f.endswith(".bak") ] for f in filelist: os.remove(os.path.join(mydir, f)) Or via glob.glob: import glob, os, os.path filelist = glob.glob(os.path.join(mydir, "*.bak")) for f in filelist: os.remove(f) Be sure ...
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How to replace list item in best way

...newValue = value.ToString(); int index = listofelements.IndexOf(oldValue); if(index != -1) listofelements[index] = newValue; This asks only once for the index. Your approach uses Contains first which needs to loop all items(in the worst case), then you're using IndexOf which needs to enumerate...
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Difference between malloc and calloc?

What is the difference between doing: 14 Answers 14 ...
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How to list running screen sessions?

...ng command as that user: screen -ls To see all screen sessions on a specific machine you can do: ls -laR /var/run/screen/ I get this on my machine: gentle ~ # ls -laR /var/run/screen/ /var/run/screen/: total 1 drwxrwxr-x 4 root utmp 96 Mar 1 2005 . drwxr-xr-x 10 root root 840 Feb 1 03...
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How do I fix a NoSuchMethodError?

... Without any more information it is difficult to pinpoint the problem, but the root cause is that you most likely have compiled a class against a different version of the class that is missing a method, than the one you are using when running it. Look at the st...