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The relationship could not be changed because one or more of the foreign-key properties is non-nulla
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Good explanation for composition vs aggregation and how entity framework is relates to it.
– Chrysalis
Feb 13 '16 at 16:34
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MySQL, update multiple tables with one query
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What is the advantage of doing this vs. a transaction? Thanks!
– paulkon
Oct 31 '14 at 13:34
2
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What are the differences between Clojure, Scheme/Racket and Common Lisp?
... like Lisp (unlike say Javascript or VB). You are thinking "static typing" vs "dynamic typing" instead, see en.wikipedia.org/wiki/Type_system for all the varieties. But yes, it's marketing
– Nas Banov
Feb 23 '13 at 22:56
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What is __main__.py?
...as been mentioned, adding an explanation about the differences __init__.py vs. __main__.py would make the answer more complete.
– SergiyKolesnikov
Jun 25 at 7:47
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In C# what is the difference between a destructor and a Finalize method in a class?
...ize method. Reference:
http://msdn2.microsoft.com/en-us/library/aa720161(VS.71).aspx
Finalize
A Finalize method acts as a safeguard to clean up resources in the
event that your Dispose method is not called. You should only
implement a Finalize method to clean up unmanaged resources. You...
How does BLAS get such extreme performance?
...face.
Firstly I will mention things that are largely unrelated:
Fortran vs C, makes no difference
Advanced matrix algorithms such as Strassen, implementations dont use them as they dont help in practice
Most implementations break each operation into small-dimension matrix or vector operations i...
Shell equality operators (=, ==, -eq)
...true or 0. So many are bitten by this bug:
$ [[ 10 < 2 ]]; echo $?
0
vs the correct test for 10 being arithmetically less than 2:
$ [[ 10 -lt 2 ]]; echo $?
1
In comments, there is a question of the technical reason using the integer -eq on strings returns True for strings that are not the...
Performance surprise with “as” and nullable types
... syntax is indeed 1 byte smaller, it mostly wins big by making zero calls (vs. two) and avoiding the unbox operation altogether when possible.
// static void test1(Object o, ref int y)
// {
// int? x = o as int?;
// if (x.HasValue)
// y = x.Value;
// }
[0] valuetype [mscorlib]Nulla...
When do you use POST and when do you use GET?
... edited Jun 6 '18 at 20:33
vs97
4,92022 gold badges1919 silver badges3434 bronze badges
answered Sep 5 '08 at 19:12
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ReadOnlyCollection or IEnumerable for exposing member collections?
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@VojislavStojkovic you can't use bar.Foos[17] with IReadOnlyCollection. The only difference is additional Count property. public interface IReadOnlyCollection<out T> : IEnumerable<T>, IEnumerable
– ...