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MySQL show status - active or total connections?

... According to the docs, it means the total number throughout history: Connections The number of connection attempts (successful or not) to the MySQL server. You can see the number of active connections either through the Threads_connected status vari...
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How to properly check if std::function is empty in C++11?

... The point I'm trying to make is that the standard assigns a very specific meaning to the phrase "implicit conversion", and it is distinctly different from "contextual conversion to bool," which also has a very specific meaning. There is no "Is-a" relationship here. I understand that beginners pro...
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T-SQL - function with default parameters

... Using stored procedures does not mean using them instead of using a function - it can mean using the stored procedure as a wrapper around a function. I use this technique often; the default keywords are now hidden inside the proc. I think this idea is just f...
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Is it bad practice to return from within a try catch finally block?

... hmmm very interesting. So that means it's safe, but does that mean it should be avoided? – lomaxx Jan 16 '09 at 0:35 3 ...
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Highlight bash/shell code in markdown

...ing engine and the markdown flavour. There is no standard for this. If you mean github flavoured markdown for example, shell should work fine. Aliases are sh, bash or zsh. You can find the list of available syntax lexers here ...
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How do I interpret precision and scale of a number in a database?

... @mezoid What does a negative scale value mean? – Geek Jun 19 '14 at 13:20 @Geek Acco...
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Width equal to content [duplicate]

... By default p tags are block elements, which means they take 100% of the parent width. You can change their display property with: #container p { display:inline-block; } But it puts the elements side by side. To keep each element on its own line you can use: #...
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What does GitHub for Windows' “sync” do?

... Just out of curiosity, what does the ! mean in the above line? – Scott Romack Jul 14 '16 at 16:33 ...
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Open files in 'rt' and 'wt' modes

...or w and wt since text mode is the default. Documented here: Character Meaning 'r' open for reading (default) 'w' open for writing, truncating the file first 'x' open for exclusive creation, failing if the file already exists 'a' open for writing, appending to the end of the file...
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How do I convert a Java 8 IntStream to a List?

... @skiwi I mean, that all the other answers are unneeded after this one as they would be not so natural. – Dmitry Ginzburg May 15 '14 at 9:56 ...