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How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?
I'm using the PostgreSQL database for my Ruby on Rails application (on Mac OS X 10.9).
15 Answers
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demystify Flask app.secret_key
...e:
... security_log(cookie)
Hash-based Message Authentication Code (HMAC)
The type of signature generated above that requires a secret key to ensure the integrity of some contents is called in cryptography a Message Authentication Code or MAC.
I specified earlier that the example above is an...
Get current clipboard content? [closed]
...app lets me copy my passwords to the clipboard.
– René Winkler
Sep 5 at 19:12
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Select count(*) from multiple tables
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@Stéphane: this happens when you try Oracle code on PostgreSQL. Lose the FROM dual.
– Quassnoi
Feb 3 '16 at 12:52
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...them know why this code answer the question.
– Jean-Rémy Revy
Sep 22 '14 at 20:14
Wrapping a string into an array doe...
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...l 29 '13 at 21:10
Fabrício Matté
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answered Jan 1 '13 at 19:56
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How can HTML5 “replace” Flash? [closed]
... On the side of SJ, I've seen sites that bring my powerhouse of a machine to it's knees by Flash based ads. These are admittedly badly done flash ads, but it is flash. Now on a mobile phone an ad that can cause the cpu to spike to 100% is not good and I stand by SJ assertion that Flash is ...
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...as down voted. This was the answer to my problem.
– Félix Simões
Jun 24 '15 at 9:17
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This is t...
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...ect If they are assigned to a class or similar.
– José Carlos
Sep 25 '16 at 22:09
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If you need...
Checking that a List is not empty in Hamcrest
...ed to assertThat(list, hasSize(greaterThan(0)))
– José Andias
Aug 12 '16 at 18:20
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