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Validate uniqueness of multiple columns

... potashin 41.4k1111 gold badges7474 silver badges9999 bronze badges answered Feb 2 '11 at 5:46 Dylan MarkowDyla...
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Difference between database and schema

... – Yevgraf Andreyevich Zhivago Dec 25 '14 at 19:49 Is the logic same for AWS Redshift? Anyone? I am confused between the t...
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Removing a model in rails (reverse of “rails g model Title…”)

... 194 bundle exec rake db:rollback rails destroy model <model_name> When you generate a mo...
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How to check for Is not Null And Is not Empty string in SQL server?

... | edited Aug 22 '14 at 22:58 answered Dec 28 '11 at 19:15 ...
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How to add multi line comments in makefiles

... 154 No, there is nothing like C-style /* */ comments in makefiles. As somebody else suggested, you ...
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iOS: How does one animate to new autolayout constraint (height)

... | edited Nov 27 '14 at 7:19 Kumar KL 14.9k99 gold badges3535 silver badges5757 bronze badges ans...
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What is difference between width, innerWidth and outerWidth, height, innerHeight and outerHeight in

... | edited Aug 16 '13 at 14:52 Bill the Lizard 358k168168 gold badges534534 silver badges830830 bronze badges ...
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Coding Katas for practicing the refactoring of legacy code

... piece, perhaps fixing bugs and adding features along the way Repeat steps 4 through 6 When you find a part that was especially challenging, throw away your work and repeat it a couple times to reinforce your skills. This doesn't just practice refactoring, but other skills like code reading, test...
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How to fire AJAX request Periodically?

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Eager load polymorphic

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