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Why is SELECT * considered harmful?

... There are really three major reasons: Inefficiency in moving data to the consumer. When you SELECT *, you're often retrieving more columns from the database than your application really needs to function. This causes more data to mov...
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MySQL JOIN the most recent row only?

...d Sep 1 '10 at 14:37 Daniel VassalloDaniel Vassallo 301k6666 gold badges475475 silver badges424424 bronze badges ...
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Directive isolate scope with ng-repeat scope in AngularJS

...ed into ngRepeat for use on your directive's attributes do use a prototypically-inherited scope the reason your directive doesn't work has nothing to do with the isolate scope Here's an example of the same code but with the directive removed: <li ng-repeat="name in names" ng-class="{ activ...
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Best practice for partial updates in a RESTful service

...system and I am trying to find the best practice for updating records partially. For example, I want the caller to be able to read the full record with a GET request. But for updating it only certain operations on the record are allowed, like change the status from ENABLED to DISABLED. (I have more ...
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How to use FormData for AJAX file upload?

This is my HTML which I'm generating dynamically using drag and drop functionality. 9 Answers ...
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Pointer vs. Reference

...meter then you must either check explicitly that it is not NULL, or search all usages of the function to be sure that it is never NULL. This effort is not required for references. – Richard Corden Sep 22 '08 at 11:10 ...
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Difference between string and char[] types in C++

... A char array is just that - an array of characters: If allocated on the stack (like in your example), it will always occupy eg. 256 bytes no matter how long the text it contains is If allocated on the heap (using malloc() or new char[]) you're responsible for releasing the memory...
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Career day in kindergarten: how to demonstrate programming in 20 minutes? [closed]

...a lot of paper towels on a table, and got out a loaf of (cheap) bread, a small tub of butter, a small jar of jelly, and a plastic butter knife. I said to the kids, "How many of you think computers are smart?" Most of them raised their hands. I said, "Computers are really dumb. People are smart. ...
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How to set the focus for a particular field in a Bootstrap modal, once it appears

...d be "shown.bs..." instead of "show.bs...". Show doesnt worked for me. Actually their both are working and they are different events. Sorry ignore my first sentence. – Vladyn Mar 15 '17 at 13:14 ...
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Should I compile release builds with debug info as “full” or “pdb-only”?

...t there is some impact on the speed and size of JIT optimized code and a small impact on code quality with /debug:full. We recommend /debug:pdbonly or no PDB for generating release code. – Allon Guralnek Feb 16 '12 at 9:18 ...