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Should I commit or rollback a read transaction?
...should close it. Committing releases any locks you may have had, and is equally sensible with ReadUncommitted or Serializable isolation levels. Relying on implicit rollback - while perhaps technically equivalent - is just poor form.
If that hasn't convinced you, just imagine the next guy who insert...
How do you get the current project directory from C# code when creating a custom MSBuild task?
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What if we use a custom target CPU? For instance, if I set my build to target x64 it creates another folder in between those.
– Samir Aguiar
Jul 28 '16 at 19:35
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ViewPager with Google Maps API v2: mysterious black view
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Not really. I just noticed where the zoom and location controls sat on top of the map surface the black trail did not appear, so I placed a view on top to cover the entire map and it worked. I agree it is not perfect - the black ba...
Return a `struct` from a function in C
... from a function, to which I replied: "No! You'd return pointers to dynamically malloc ed struct s instead."
9 Answers
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What is the difference between float and double?
...i.e. using one or the other does not seem to affect the results. Is this really the case? When are floats and doubles interchangeable? What are the differences between them?
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Most efficient way to make the first character of a String lower case?
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Depends what resource you are making more efficient - CPU or programmer time :)
– Dan Gravell
Mar 20 '17 at 16:33
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Reading Excel files from C#
...ameHere");
DataTable data = ds.Tables["anyNameHere"];
This is what I usually use. It is a little different because I usually stick a AsEnumerable() at the edit of the tables:
var data = ds.Tables["anyNameHere"].AsEnumerable();
as this lets me use LINQ to search and build structs from the fie...
Favourite performance tuning tricks [closed]
...les (possibly archive the deleted records)
Consider doing this automatically once a day or once a week.
Rebuild Indexes
Rebuild Tables (bcp data out/in)
Dump / Reload the database (drastic, but might fix corruption)
Build new, more appropriate index
Run DBCC to see if there is possible corru...
How to convert a string of bytes into an int?
....urandom(4) bytes **1.4 µs**(struct) vs **2.3 µs**(int.from_bytes) on my cpu. python 3.5.2
– eri
Dec 26 '16 at 12:32
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Redis is single-threaded, then how does it do concurrent I/O?
...n how you define concurrency.
In server-side software, concurrency and parallelism are often considered as different concepts. In a server, supporting concurrent I/Os means the server is able to serve several clients by executing several flows corresponding to those clients with only one computatio...