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Django ManyToMany filter()

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Why are ToLookup and GroupBy different?

...cally they are the same thing but the performance implications of each are completely different. Calling ToLookup means I want a cache of the entire thing right now organized by group. Calling GroupBy means "I am building an object to represent the question 'what would these things look like if I o...
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Are table names in MySQL case sensitive?

...uestion for an example of what can go wrong because of this: stackoverflow.com/questions/23182969/… – Jules Apr 20 '14 at 14:29 ...
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Resolving LNK4098: defaultlib 'MSVCRT' conflicts with

...the CRT (/MDd) Look at the linker options, Project + Properties, Linker, Command Line. Note how these libraries are not mentioned here. The linker automatically figures out what /M switch was used by the compiler and which .lib should be linked through a #pragma comment directive. Kinda importa...
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Does Notepad++ show all hidden characters?

... Menu View → Show Symbol → Show White Space and TAB (Thanks to bers' comment and bkaid's answers below for these updated locations.) On older versions you can look for: Menu View → Show all characters or Menu View → Show White Space and TAB ...
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How to get a index value from foreach loop in jstl

... I need to know the index[location] of each element comes in the String Array. – Java Questions Sep 16 '13 at 11:10 ...
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How to synchronize a static variable among threads running different instances of a class in Java?

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C# Convert List to Dictionary

...: var res = list.Distinct().ToDictionary(x => x, x => x); EDIT To comment on the valid reason, I think the only reason that could be valid for conversions like this is that at some point the keys and the values in the resultant dictionary are going to diverge. For example, you would do an i...
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XSD: What is the difference between xs:integer and xs:int?

...or details https://web.archive.org/web/20151117073716/http://www.w3schools.com/schema/schema_dtypes_numeric.asp For example, XJC (Java) generates Integer for xs:int and BigInteger for xs:integer. The bottom line: use xs:int if you want to work cross platforms and be sure that your numbers will pas...
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How to prevent gcc optimizing some statements in C?

... but it is unnecessary. A safer alternative is to make it illegal for the compiler to optimize out the store by using the volatile type qualifier. // Assuming pageptr is unsigned char * already... unsigned char *pageptr = ...; ((unsigned char volatile *)pageptr)[0] = pageptr[0]; The volatile typ...