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insert a NOT NULL column to an existing table

...n initially create Null-able column, then update your table column with valid not null values and finally ALTER column to set NOT NULL constraint: ALTER TABLE MY_TABLE ADD STAGE INT NULL GO UPDATE MY_TABLE SET <a valid not null values for your column> GO ALTER TABLE MY_TABLE ALTER COLUMN STAG...
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Format Instant to String

... .withLocale( Locale.UK ) .withZone( ZoneId.systemDefault() ); Generating String Now use that formatter to generate the String representation of your Instant. Instant instant = Instant.now(); String output = formatter.format( instant ); Dump to console. Syste...
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An example of how to use getopts in bash

I want to call myscript file in this way: 7 Answers 7 ...
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Disable a group of tests in rspec?

...zjub for easier frobbing" do it "does something well" it "rejects invalid input" end I like to see reasons with my pending items when I'm disabling something for "a while". They serve as little comments/TODOs that are presented regularly rather than buried in a comment or an excluded example/f...
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AngularJS Directive Restrict A vs E

...ing instructions in order to make it working: https://docs.angularjs.org/guide/ie share | improve this answer | follow | ...
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How to convert an NSString into an NSNumber

...SNumber *myNumber = [f numberFromString:@"42"]; If the string is not a valid number, then myNumber will be nil. If it is a valid number, then you now have all of the NSNumber goodness to figure out what kind of number it actually is. ...
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How to determine if a number is odd in JavaScript

...want javascript to be truthy or falsey, which is why i wrote it the way i did. – Chii Feb 16 '11 at 12:24 ...
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How to pass arguments from command line to gradle

...st of predefined properties in table 13.1 at gradle.org/docs/current/userguide/writing_build_scripts.html. – Lidia Jul 31 '12 at 23:50 2 ...
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Hidden features of Python [closed]

...ed up. You can append many if statements to the end of the generator, basically replicating nested for loops: >>> n = ((a,b) for a in range(0,2) for b in range(4,6)) >>> for i in n: ... print i (0, 4) (0, 5) (1, 4) (1, 5) ...
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How and where are Annotations used in Java?

... methods. Asking an object for its meta-object (e.g. anObj.getClass() ) is called introspection. The introspection can go further and we can ask a meta-object what are its annotations (e.g. aClass.getAnnotations). Introspection and annotations belong to what is called reflection and meta-programming...