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Count(*) vs Count(1) - SQL Server
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First, there is no semantic difference between select count(1) from table vs. select count(*) from table. They return the same results in all cases (and it is a bug if not). As noted in the other answers, select count(column) from table is semantically different and does not always return the sam...
Visual Studio debugger - Displaying integer values in Hex
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I was able to do it in the Call Stack window in VS2010.
– StuperUser
Jan 19 '11 at 10:28
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JPA and Hibernate - Criteria vs. JPQL or HQL
...tion. Criteria queries also completely respect the fetching strategy (join vs select vs subselect).
HQL respects the laziness settings in your mappings and guarantees that what you want loaded is loaded. This means one HQL query might result in several SQL immediate SELECT statements to fetch the ...
__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
...之前。
函数属性（Function Attribute）
函数属性可以帮助开发者把一些特性添加到函数声明中，从而可以使编译器在错误检查方面的功能更强大。__attribute__机制也很容易同非GNU应用程序做到兼容之功效。
GNU CC需要使用 –Wall...
[] and {} vs list() and dict(), which is better?
...CTION 0
6 RETURN_VALUE
Same applies to the list vs []
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How to colorize diff on the command line?
...1m-/;s/^+/\x1b[42m+/;s/^@/\x1b[34m@/;s/$/\x1b[0m/'
Throw that in a shell script and pipe unified diff output through it.
It makes hunk markers blue and highlights new/old filenames and added/removed lines in green and red background, respectively.1 And it will make trailing space2 changes more r...
Interfaces vs. abstract classes [duplicate]
In C#, when should you use interfaces and when should you use abstract classes? What can be the deciding factor?
4 Answers...
Which Java Collection should I use?
...ge from the oracle documentation which describes each Collection.
HashSet vs TreeSet
There is a detailed discussion of when to use HashSet or TreeSet here:
Hashset vs Treeset
ArrayList vs LinkedList
Detailed discussion: When to use LinkedList over ArrayList?
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Unable to load DLL 'SQLite.Interop.dll'
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How can you add a dependency like that? never done it (VS2013)
– jpgrassi
Sep 2 '15 at 18:15
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Setting design time DataContext on a Window is giving a compiler error?
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Wow, what a pain! Let's hope MS puts in some VS design-time support for x:Bind.
We to be able to use the VS designer but also be able to switch easily to x:Bind instead of Binding. Here's what I did:
In my View, I added a property to get my ViewModel. This makes se...