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How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?

... | edited Jul 15 at 20:25 answered Aug 2 '09 at 13:35 ...
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Append TimeStamp to a File Name

...Time.Now.ToString("yyyyMMddHHmmssfff") or string.Format string.Format("{0:yyyy-MM-dd_HH-mm-ss-fff}", DateTime.Now); or Interpolated Strings $"{DateTime.Now:yyyy-MM-dd_HH-mm-ss-fff}" There are following custom format specifiers y (year), M (month), d (day), h (hour 12), H (hour 24), m (min...
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How to calculate time in hours between two dates in iOS

...enDates = [date1 timeIntervalSinceDate:date2]; double secondsInAnHour = 3600; NSInteger hoursBetweenDates = distanceBetweenDates / secondsInAnHour; See, the apple reference library http://developer.apple.com/library/mac/navigation/ or if you are using Xcode just select help/documentation from th...
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What's the best way to add a drop shadow to my UIView

... 280 Try this: UIBezierPath *shadowPath = [UIBezierPath bezierPathWithRect:view.bounds]; view.layer....
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Check if a given Type is an Enum

... Ry-♦Ry- 192k4444 gold badges392392 silver badges404404 bronze badges 63 ...
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How do I verify jQuery AJAX events with Jasmine?

...yOn($, "ajax"); getProduct(123); expect($.ajax.mostRecentCall.args[0]["url"]).toEqual("/products/123"); }); function getProduct(id) { $.ajax({ type: "GET", url: "/products/" + id, contentType: "application/json; charset=utf-8", dataType: "json" }); } ...
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How to execute ipdb.set_trace() at will while running pytest tests

... | edited Nov 4 '17 at 21:02 ivan_pozdeev 26.5k1010 gold badges7676 silver badges124124 bronze badges an...
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An error occurred while installing pg (0.17.1), and Bundler cannot continue

I just installed Rails 4.0.2 and when creating a new app, in the bundle stage I get: 16 Answers ...
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Send a file via HTTP POST with C#

... Using .NET 4.5 (or .NET 4.0 by adding the Microsoft.Net.Http package from NuGet) there is an easier way to simulate form requests. Here is an example: private async Task<System.IO.Stream> Upload(string actionUrl, string paramString, Stream para...
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How can I check the size of a collection within a Django template?

... MichielB 3,38011 gold badge2424 silver badges3535 bronze badges answered May 23 '09 at 17:53 Alex MartelliAlex Mar...