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Why do you create a View in a database?

...eir own queries (through some interactive SQL program or writing their own scripts), they can run select * from customer which gives them access to everything. If you give them access to the view and not the table, they cannot access fields that aren't in the view. – Graeme Per...
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How to get ID of the last updated row in MySQL?

... and mysql_insert_id() is that LAST_INSERT_ID() is made easy to use in scripts while mysql_insert_id() tries to provide more exact information about what happens to the AUTO_INCREMENT column. PHP mysqli_insert_id() Performing an INSERT or UPDATE statement using the LAST_INSERT_ID() fun...
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How to convert Linux cron jobs to “the Amazon way”?

...hen certain CloudWatch stats aren't what they should be. We use cloud-init scripts to get the cronjobs running. Of course, this comes with a downtime, leading to missed cronjobs (when running certain tasks every minute, like we do). Use the logic that rcron uses. Of course, the magic is not really i...
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Function return value in PowerShell

...yword really just indicates a logical exit point Thus, the following two script blocks will do effectively the exact same thing: $a = "Hello, World" return $a   $a = "Hello, World" $a return The $a variable in the second example is left as output on the pipeline and, as mentioned, all outpu...
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How do I empty an array in JavaScript?

...o 0. Some have argued that this may not work in all implementations of JavaScript, but it turns out that this is not the case. It also works when using "strict mode" in ECMAScript 5 because the length property of an array is a read/write property. Method 3 (as suggested by Anthony) A.splice(0,A.le...
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In PHP, what is a closure and why does it use the “use” identifier?

...res and functions have the same speed. Yes, you can use them all over your scripts. As @Mytskine pointed out probably the best in-depth explanation is the RFC for closures. (Upvote him for this.) share | ...
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How to start working with GTest and CMake

...e is correct) cmake -B build -DCMAKE_TOOLCHAIN_FILE=C:\bin\programs\vcpkg\scripts\buildsystems\vcpkg.cmake and build using cmake --build build as usual. Note that, vcpkg will also copy the required gtest(d).dll/gtest(d)_main.dll from the install folder to the Debug/Release folders. Test with cd b...
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Add only non-whitespace changes

... I agree with Colin. If the script works, then there should be no need to create a stash. What might be good to consider though would be to run stash, then stash pop. Popped stashes can be recovered if necessary, but you won't end up with a lot of stash...
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Explain the encapsulated anonymous function syntax

...he reasoning behind the syntax for encapsulated anonymous functions in JavaScript? Why does this work: (function(){})(); but this doesn't: function(){}(); ? ...
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jQuery: outer html() [duplicate]

... Keep in mind that as of April 2015, SVG elements still don't have an outerHTML property in all browsers, see: stackoverflow.com/a/20559830/656010 – Tom Wayson Apr 30 '15 at 15:42 ...