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What is the difference between char, nchar, varchar, and nvarchar in SQL Server?

...torage space for number of characters you specify even if you don't use up all that space. varchar and nvarchar are variable-length which will only use up spaces for the characters you store. It will not reserve storage like char or nchar. nchar and nvarchar will take up twice as much storage spac...
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C++ display stack trace on exception

...re details. On MSVC then you can use the StackWalker library that handles all of the underlying API calls needed for Windows. You'll have to figure out the best way to integrate this functionality into your app, but the amount of code you need to write should be minimal. ...
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How to turn on line numbers in IDLE?

...t window, go to Options and click Show Line Numbers. To show them automatically, go to Options > Configure IDLE > General and check the Show line numbers in new windows box. Version 3.7 or older: Unfortunately there is not an option to display line numbers in IDLE although there is an enhancem...
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Check if a user has scrolled to the bottom

...ight of the visible window and checks if that equals the height of the overall content (document). If you wanted to instead check if the user is near the bottom, it'd look something like this: $(window).scroll(function() { if($(window).scrollTop() + $(window).height() > $(document).height() ...
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A transport-level error has occurred when receiving results from the server [closed]

... Can you provide some details on what that actually does? Are there any reasons against setting such a value globally? – Drew Noakes Dec 5 '10 at 19:02 ...
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Cannot delete or update a parent row: a foreign key constraint fails

... (`advertiser_id`) REFERENCES `jobs` (`advertiser_id`); ...is actually the opposite to what it should be. As it is, it means that you'd have to have a record in the jobs table before the advertisers. So you need to use: ALTER TABLE `jobs` ADD CONSTRAINT `advertisers_ibfk_1` FOREIGN KEY...
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How to debug JavaScript / jQuery event bindings with Firebug or similar tools?

...ked!') }" }) See jQuery.fn.data (where jQuery stores your handler internally). jQuery 1.8.x var clickEvents = $._data($('#foo')[0], "events").click; jQuery.each(clickEvents, function(key, handlerObj) { console.log(handlerObj.handler) // prints "function() { console.log('clicked!') }" }) ...
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Java Desktop application: SWT vs. Swing [closed]

...ava library, no need for additional native libraries works the same way on all platforms Integrated GUI Editor in Netbeans and Eclipse good online tutorials by Sun/Oracle Supported by official java extensions (like java OpenGL) Cons Swing: Native look and feel may behave different from the real...
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How to export iTerm2 Profiles

... folder or URL:. There is a button next to it Save settings to Folder. So all you need to do is save your settings first and load it after you reinstalled your OS. If the Save settings to Folder is disabled, select a folder (e.g. empty) in the Load preferences from a custom folder or URL: text box...
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How to remove element from array in forEach loop?

...); } log(review); <pre id="out"></pre> But you specifically want to use ES5 Array.prototype.forEach, so what can we do? Well we need to use Array.prototype.slice to make a shallow copy of the array and Array.prototype.reverse so we can work in reverse to mutate the original array...