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You can't specify target table for update in FROM clause
...le before the update started, or the inner query might use data that has already been updated by the query as it's in progress. Neither of these side-effects is necessarily desirable, so the safest bet is to force you to specify what will happen using an extra table.
– siride
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Recommendation for compressing JPG files with ImageMagick
...d a general suggestion to minimize JPG and PNG.
First of all, ImageMagick reads (or better "guess"...) the input jpeg compression level and so if you don't add -quality NN at all, the output should use the same level as input. Sometimes could be an important feature. Otherwise the default level is ...
How to get enum value by string or int
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From SQL database get enum like:
SqlDataReader dr = selectCmd.ExecuteReader();
while (dr.Read()) {
EnumType et = (EnumType)Enum.Parse(typeof(EnumType), dr.GetString(0));
....
}
...
C# namespace alias - what's the point?
...xample, against:
using WinformTimer = System.Windows.Forms.Timer;
using ThreadingTimer = System.Threading.Timer;
(ps: thanks for the choice of Timer ;-p)
Otherwise, if you use both System.Windows.Forms.Timer and System.Timers.Timer in the same file you'd have to keep giving the full names (since...
strdup() - what does it do in C?
...y shows the intent. In some implementations, it may be faster (since you already know the length) to use memcpy, as they may allow for transferring the data in larger chunks, or in parallel. Or it may not :-) Optimisation mantra #1: "measure, don't guess".
In any case, should you decide to go that ...
Where does git config --global get written to?
...caught me out while using Bower. It seems a number of utilities on Windows read from <system>:\User\<username>\.gitconfig, while the Git tool itself saves to %HOMEPATH%\.gitconfig. I had to go one step further and copy the updated config file from my H:` (our network uses the same drive ...
Can an ASP.NET MVC controller return an Image?
... You can use Path.Combine instead of the concat for safer and more readable code.
– Marcell Toth
Nov 7 '18 at 17:32
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Subversion stuck due to “previous operation has not finished”?
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If you are reading this you are in trouble :) I never ran into such a mess with Git (so far). I ended up cleaning / reverting / cleaning etc. on any directory I could, if Svn would let me.
– aliopi
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Regex to Match Symbols: !$%^&*()_+|~-=`{}[]:";'?,./
... Is it common knowledge that hyphens have to come first? I've read dozens of SO answers and regex cheat sheets this is the first I've heard of it. Your answer saved me a lot of drama. Thanks!
– CF_HoneyBadger
Jun 29 '16 at 14:57
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Best XML Parser for PHP [duplicate]
...tensions and will load the entire XML file into memory. XML Parser like XMLReader will only load the current node into memory. You define handlers for specific nodes which will get triggered when the Parser encounters it. That is faster and saves on memory. You pay for that with not being able to us...