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How do you check if a certain index exists in a table?

... Just to add: "Beginning with SQL Server 2016 you can use the DROP INDEX IF EXISTS syntax." MS documentation – heringer Sep 1 '17 at 11:39 ...
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iOS Image Orientation has Strange Behavior

...IImage *)scaleAndRotateImage:(UIImage *) image { int kMaxResolution = 320; CGImageRef imgRef = image.CGImage; CGFloat width = CGImageGetWidth(imgRef); CGFloat height = CGImageGetHeight(imgRef); CGAffineTransform transform = CGAffineTransformIdentity; CGRect bounds = CGRec...
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Measuring execution time of a function in C++

...oid function() { long long number = 0; for( long long i = 0; i != 2000000; ++i ) { number += 5; } } int main() { auto t1 = std::chrono::high_resolution_clock::now(); function(); auto t2 = std::chrono::high_resolution_clock::now(); auto duration = std::chrono...
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Would it be beneficial to begin using instancetype instead of id?

...thods. – Catfish_Man Oct 1 '13 at 0:28 4 Note that in iOS 7, many methods in Foundation have been...
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How should one use std::optional?

...ptz Line 256: union storage_t { unsigned char dummy_; T value_; ... } Line 289: struct optional_base { bool init_; storage_t<T> storage_; ... } How is that not "a T and a bool"? I completely agree the implementation is very tricky and nontrivial, but conceptually and concretely the type is a T...
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File Upload in WebView

... 20 @hifarrer you are a lifesaver. This worked nicely. PLUS, for us noobs, COMPLETE code helps understand the placement and how it works rather...
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How to implement infinity in Java?

...r.MAX_VALUE + 5 ? – Erwin Smout Jul 20 '15 at 8:48 9 Integer.MAX_VALUE + 5 wraps around into the ...
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AngularJS: Basic example to use authentication in Single Page Application

... answered Oct 5 '14 at 9:20 Alex ArvanitidisAlex Arvanitidis 3,90866 gold badges2323 silver badges3434 bronze badges ...
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Does height and width not apply to span?

... olleholleh 1,2091313 silver badges1919 bronze badges add a comment ...
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Print all day-dates between two dates [duplicate]

... I came up with this: from datetime import date, timedelta sdate = date(2008, 8, 15) # start date edate = date(2008, 9, 15) # end date delta = edate - sdate # as timedelta for i in range(delta.days + 1): day = sdate + timedelta(days=i) print(day) The output: 2008-08-15 2008...