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Database development mistakes made by application developers [closed]

...using it anyway. More here: How important are constraints like NOT NULL and FOREIGN KEY if I’ll always control my database input with php? Are foreign keys really necessary in a database design? Are foreign keys really necessary in a database design? 3. Using natural rather than surrogate (te...
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Build an ASCII chart of the most commonly used words in a given text [closed]

... LabVIEW's very happy in its hardware control and measurement niche, but really pretty awful for string manipulation. – Joe Z Jul 4 '10 at 6:23 ...
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Why does the C preprocessor interpret the word “linux” as the constant “1”?

... In the Old Days (pre-ANSI), predefining symbols such as unix and vax was a way to allow code to detect at compile time what system it was being compiled for. There was no official language standard back then (beyond the reference material at the back of the first edition of K&R), a...
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Is there a vim command to relocate a tab?

... 7.3 (2010 Aug 15, compiled Apr 2 2013 09:17:34) Included patches: 1-547 and +- not supported there, documentation said I should specify zero or positive value – Vladimir Sep 10 '13 at 13:41 ...
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MVC4 StyleBundle not resolving images

... According to this thread on MVC4 css bundling and image references, if you define your bundle as: bundles.Add(new StyleBundle("~/Content/css/jquery-ui/bundle") .Include("~/Content/css/jquery-ui/*.css")); Where you define the bundle on the same path ...
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How to convert a string to lower case in Bash?

... The are various ways: POSIX standard tr $ echo "$a" | tr '[:upper:]' '[:lower:]' hi all AWK $ echo "$a" | awk '{print tolower($0)}' hi all Non-POSIX You may run into portability issues with the following examples: Bash 4.0 $ echo "${a,,}" hi all...
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Determining 32 vs 64 bit in C++

...he major compilers use for determining if it's a 64 bit environment or not and use that to set my variables. // Check windows #if _WIN32 || _WIN64 #if _WIN64 #define ENVIRONMENT64 #else #define ENVIRONMENT32 #endif #endif // Check GCC #if __GNUC__ #if __x86_64__ || __ppc64__ #define ENVIRONMENT6...
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How do I open an old MVC project in Visual Studio 2012 or Visual Studio 2013?

...MVC 4. I am working on a new machine running Windows 8, Visual Studio 2012 and Visual Studio 2013. When I try to open the MVC 2 project in VS 2012 or VS 2013 I receive the error: ...
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When would anyone use a union? Is it a remnant from the C-only days?

...pace to work with, or when you're developing an API (or something similar) and you want to force the end user to have only one instance of several objects/types at one time. Are these two guesses even close to right? ...
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Formatting code in Notepad++

...shortcut to format code in Notepad++ ? I'm mainly working with HTML, CSS and Python code. 12 Answers ...