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Add unique constraint to combination of two columns

...2/08/t-sql-queries/error-handling http://www.mssqltips.com/sqlservertip/2632/checking-for-potential-constraint-violations-before-entering-sql-server-try-and-catch-logic/ If you want to prevent exceptions from bubbling up to the application, without making changes to the application, you can use an...
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Python 2.7: Print to File

...7 Rémi 43211 gold badge1313 silver badges1919 bronze badges answered Feb 16 '12 at 17:32 Simon BergotSimon Be...
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How to specify a port number in SQL Server connection string?

... still works. – gbn Mar 14 '11 at 5:32 72 I just wasted nearly a whole day trying to figure this ...
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Using python's eval() vs. ast.literal_eval()?

... – Elijas Dapšauskas Feb 18 '19 at 15:32 add a comment  |  ...
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Strip Leading and Trailing Spaces From Java String

... szedjani 32111 gold badge55 silver badges1919 bronze badges answered Jul 11 '11 at 15:39 woliveirajrwoliveiraj...
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How can I change a secret Gist to public?

... thing? – Jonathan Wood Mar 3 at 22:32 @JonathanWood I've no idea, but they must've had a good reason. ...
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What is the best way to create constants in Objective-C

...efined in foundation and compiles to compatible formats for C, C++, and Win32. As defined in NSObjCRuntime.h #if defined(__cplusplus) #define FOUNDATION_EXTERN extern "C" #else #define FOUNDATION_EXTERN extern #endif #if TARGET_OS_WIN32 #if defined(NSBUILDINGFOUNDATION) #define FOUND...
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How to empty a redis database?

...Hieu LeHieu Le 1,89011 gold badge1818 silver badges2323 bronze badges add a comment  |  ...
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“Width equals height” constraint in Interface Builder

...o? – Lukas Kubanek Feb 10 '14 at 16:32 Yes, the changes to the XIBs are not backward compatible. If you edit with 5.1 ...
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What is the difference between range and xrange functions in Python 2.X?

...plementation of Python currently restricts its args to C longs: xrange(2**32-1, 2**32+1) # When long is 32 bits, OverflowError: Python int too large to convert to C long range(2**32-1, 2**32+1) # OK --> [4294967295L, 4294967296L] Note that in Python 3.0 there is only range and it behaves li...