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When to use single quotes, double quotes, and backticks in MySQL

I am trying to learn the best way to write queries. I also understand the importance of being consistent. Until now, I have randomly used single quotes, double quotes, and backticks without any real thought. ...
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When and why I should use session_regenerate_id()?

Why and when should I use the session_regenerate_id() function in php? Should I always use it after I use the session_start() ? I've read that I have to use it to prevent session fixation, is this the only reason? ...
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How and where are Annotations used in Java?

...n be used to describe other meta-objects. Meta-objects are classes, fields and methods. Asking an object for its meta-object (e.g. anObj.getClass() ) is called introspection. The introspection can go further and we can ask a meta-object what are its annotations (e.g. aClass.getAnnotations). Introspe...
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Why is “throws Exception” necessary when calling a function?

Why compiler reports that methods show2() , show3() , and main() have 8 Answers 8...
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What's the difference between a Python “property” and “attribute”?

I am generally confused about the difference between a "property" and an "attribute", and can't find a great resource to concisely detail the differences. ...
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“There was an error while performing this operation”

...e in IIS for which I cannot open any of the settings like Authentication, Handler Mappings, Authorization Rules etc. It just shows the error message "There was an error while performing this operation", with no more details and points to web.config. ...
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How to securely store access token and secret in Android?

I am going to use oAuth to fetch mails and contacts from google. I don't want to ask the user each time to log in to obtain an access token and secret. From what I understood, I need to store them with my application either in a database or SharedPreferences . But I am a bit worried about security ...
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How to Implement DOM Data Binding in JavaScript

...tion as strictly educational. I'm still interested in hearing new answers and ideas to implement this 15 Answers ...
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Is SQL syntax case sensitive?

Is SQL case sensitive. I've used MySQL and SQL Server which both seem to be case in-sensitive. Is this always the case? Does the standard define case-sensitivity? ...
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user authentication libraries for node.js?

...an do password authentication for a user (using a custom backend auth DB), and associate that user with a session. 15 Answe...