logical (512)


sql - Inheritance in database?

sql - Inheritance in database?

Is there any way to use inheritance in database(Specifically in SQL Server 2005)? Suppose I have few field like CreatedOn, CreatedBy which I want to add on all of my entities. I looking for an alter…


Are the shift operators(<<,>>) arithmetic or logical in C?

In C, are the shift operators(<<,>>)arithmetic or logical?…


What's the false operator in C# good for?

There are two weird operators in C#: the true operator the false operator If I understand this right these operators can be used in types which I want to use instead of a boolean expression and wher…


c# - What is the difference between the | and || or operators?

I have always used ||(two pipes) in OR expressions, both in C# and PHP. Occasionally I see a single pipe used: |. What is the difference between those two usages? Are there any caveats when using one…



sql - What is the best way to implement soft deletion?

Working on a project at the moment and we have to implement soft deletion for the majority of users(user roles). We decided to add an "is_deleted='0'" field on each table in the database and set it t…


architecture - What's the difference between “Layers” and “Tiers”?

What's the difference between "Layers" and "Tiers"?…


How do I manipulate bits in Python?

In C I could, for example, zero out bit#10 in a 32 bit unsigned value like so: unsigned long value=0xdeadbeef; value &= ~(1<<10); How do I do that in Python ?…


c++ - Programmatically find the number of cores on a machine

Is there a way to determine how many cores a machine has from C/C++ in a platform-independent way? If no such thing exists, what about determining it per-platform(Windows/*nix/Mac)?…


C# Potential Interview Question…Too hard?

Without running this code, identify which Foo method will be called: class A{public void Foo( int n){ Console.WriteLine( "A::Foo");}} class B:A{/* note that A::Foo and B…


java - Is it good practice to use the xor operator for boolean checks?

I personally like the exclusive or, ^, operator when it makes sense in the context of boolean checks because of its conciseness. I much prefer to write if(boolean1 ^ boolean2){//do it}than if…




operators operator and example bitwise how java boolean python not