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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()
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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)")
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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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How to calculate a time difference in C++
...rk this as the right answer. IMO you should use std::chrono::steady_clock::now() as described by multiple answers in the following thread stackoverflow.com/questions/2808398/easily-measure-elapsed-time
– arunsun
Dec 26 '19 at 23:12
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How to compare dates in Java? [duplicate]
...acto standard date and time library for Java prior to Java SE 8. Users are now asked to migrate to java.time (JSR-310).
Back-ports are available for Java 6 and 7 as well as Android.
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Implement touch using Python?
...k we should use pathlib2 instead of pathlib because pathlib is bugfix-only now. Therefore, on Python 2.7: pip install pathlib2 and then from pathlib2 import Path.
– Ian Lin
Nov 23 '18 at 8:58
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Can I set background image and opacity in the same property?
...big problem with a PNG is the size. It is likely going to be really large. Now that we can specify opacity: ... in all browsers, it way better!
– Alexis Wilke
Jul 1 '17 at 23:49
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What is the difference between a shim and a polyfill?
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Shim
If you are familiar with the adapter pattern, then you know what a shim is. Shims intercepts API calls and creates an abstract layer between the caller and the target. Typically shims are used for backward compability. For instance the es5-shim npm package will let you write ECMAS...
How to determine CPU and memory consumption from inside a process?
...ble getCurrentValue(){
FILETIME ftime, fsys, fuser;
ULARGE_INTEGER now, sys, user;
double percent;
GetSystemTimeAsFileTime(&ftime);
memcpy(&now, &ftime, sizeof(FILETIME));
GetProcessTimes(self, &ftime, &ftime, &fsys, &fuser);
memcpy(&sys,...
How to empty a Heroku database
...e, if you are using SHARED_DATABASE_URL:
$ heroku pg:reset DATABASE_URL
Now to recreate the database with nothing in it:
$ heroku run rake db:migrate
To populate the database with your seed data:
$ heroku run rake db:seed
---OR---
You can combine the last two (migrate & seed) into on...