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MySQL Query - Records between Today and Last 30 Days

...ery will not select the today's records. In this case, you'll need to use NOW instead: SELECT DATE_FORMAT(create_date, '%m/%d/%Y') FROM mytable WHERE create_date BETWEEN NOW() - INTERVAL 30 DAY AND NOW() share ...
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How do you install Google frameworks (Play, Accounts, etc.) on a Genymotion virtual device? [duplica

... method is no longer supported by me and doesn't work anymore as far as I know. Don't try it. # How To Add Google Apps and ARM Support to Genymotion v2.0+ # Original Source: [GUIDE] Genymotion | Installing ARM Translation and GApps - XDA-Developers Note(Feb 2nd): Contrary to previous reports, it's...
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Run a callback only if an attribute has changed in Rails

...saving to the database, or within the before_save filter: changes should now be changes_to_save changed? should now be has_changes_to_save? changed should now be changed_attribute_names_to_save <attribute>_change should now be <attribute>_change_to_be_saved <attribute>_changed? s...
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How can I find the length of a number?

...ake its absolute value and adjust the sign afterwards. Update for ES2015 Now that Math.log10 is a thing, you can simply write const len = Math.ceil(Math.log10(num + 1)); share | improve this ans...
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How can I make a time delay in Python? [duplicate]

I would like to know how to put a time delay in a Python script. 13 Answers 13 ...
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How can I connect to Android with ADB over TCP? [closed]

...ram and type: su setprop service.adb.tcp.port 5555 stop adbd start adbd Now go to your computer (assuming that you are using Windows) and create a shortcut on the desktop for "cmd.exe" (without the quotations). Right click on the cmd shortcut and choose "Run as Administrator" Change to your and...
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Calling clojure from java

...tory structure using Leiningen: C:\projects>lein new com.domain.tiny Now, change to the project directory. C:\projects>cd com.domain.tiny In the project directory, open the project.clj file and edit it such that the contents are as shown below. (defproject com.domain.tiny "0.1.0-SNAPSHO...
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Convert UTC to local time in Rails 3

...rake -D time So, to convert to EST, catering for DST automatically: Time.now.in_time_zone("Eastern Time (US & Canada)") share | improve this answer | follow ...
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Active Record - Find records which were created_at before today

...was referring something like MyTable1.where(MyTable[:created_at] < Time.now) is it possible? – Sayuj Nov 2 '11 at 10:05 ...
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Memoization in Haskell?

...u can check the work so far by verifying that toList nats gives you [0..] Now, f_tree :: Tree Int f_tree = fmap (f fastest_f) nats fastest_f :: Int -> Int fastest_f = index f_tree works just like with list above, but instead of taking linear time to find each node, can chase it down in loga...