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Should I use the datetime or timestamp data type in MySQL?

...o with the native format. You can do calculations within MySQL that way ("SELECT DATE_ADD(my_datetime, INTERVAL 1 DAY)") and it is simple to change the format of the value to a UNIX timestamp ("SELECT UNIX_TIMESTAMP(my_datetime)") when you query the record if you want to operate on it with PHP. ...
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Show data on mouseover of circle

...and you don't need the mousehandler. The code would be something like vis.selectAll("circle") .data(datafiltered).enter().append("svg:circle") ... .append("svg:title") .text(function(d) { return d.x; }); If you want fancier tooltips, you could use tipsy for example. See here for an ex...
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PostgreSQL delete with inner join

...ctprice WHERE m_pricelist_version_id='1000020' AND m_product_id IN (SELECT m_product_id FROM m_product WHERE upc = '7094'); share | improve t...
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CSS triangle custom border color

...areful about copypasta out of JSFiddle, it added two invisible and invalid characters into my CSS file that caused validation/parse errors in that css file. Once I removed the invisible characters (the chars were zero width, so cursor wasn't showing them, but I was able to backspace) it worked wonde...
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Is gcc std::unordered_map implementation slow? If so - why?

...ith times(). template <typename TEST> void time_test (TEST t, const char *m) { struct tms start; struct tms finish; long ticks_per_second; times(&start); t(); times(&finish); ticks_per_second = sysconf(_SC_CLK_TCK); std::cout << "elapsed: " ...
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Find difference between timestamps in seconds in PostgreSQL

... Try:  SELECT EXTRACT(EPOCH FROM (timestamp_B - timestamp_A)) FROM TableA Details here: EXTRACT. share | improve this answer ...
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How enable auto-format code for Intellij IDEA?

...ortion go to Editor Actions> complete current statement.Click on it and select add keyboard shortcut. Press ; and select ok. Use macro. Go to Edit> Macros> Start Macro Recording. Now press semicolon and keyboard shortcut to reformat code (you can find the keyboard shortcut from other ans...
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TortoiseGit save user authentication / credentials

... To use: Right click → TortoiseGit → Settings → Git → Credential. Select Credential helper: wincred - this repository only / wincred - current Windows user share | improve this answer ...
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How to find the .NET framework version of a Visual Studio project?

...can take the below steps: On the option bar at the top of visual studio, select the 4th option "Project" and under that click on the last option which says [ProjectName]Properties.Click on it & you shall see a new tab has been opened.Under that select the Application option on the left and you...
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Find UNC path of a network drive?

...le from Windows Explorer into the body of a Word document or Outlook email Select 'Create Hyperlink Here' The inserted text will be the full UNC of the dragged item. share | improve this answer ...