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MySQL order by before group by
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Using an ORDER BY in a subquery is not the best solution to this problem.
The best solution to get the max(post_date) by author is to use a subquery to return the max date and then join that to your table on both the post_author an...
Random record in ActiveRecord
...d = Model.first(:offset => offset)
To be honest, I've just been using ORDER BY RAND() or RANDOM() (depending on the database). It's not a performance issue if you don't have a performance issue.
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NUnit Test Run Order
...tests run alphabetically. Does anyone know of any way to set the execution order? Does an attribute exist for this?
16 Answ...
Column order manipulation using col-lg-push and col-lg-pull in Twitter Bootstrap 3
...w reading documentation on Twitter Bootstrap 3, and tried to follow column ordering as shown in this page but hit the wall. I don't understand why such a code works nor how to correctly specify the setting. What I want to show is one grid, which is consisted of length 5, and the other length 5, ...
Converting dict to OrderedDict
I am having some trouble using the collections.OrderedDict class. I am using Python 2.7 on Raspbian, the Debian distro for Raspberry Pi. I am trying to print two dictionaries in order for comparison (side-by-side) for a text-adventure. The order is essential to compare accurately.
No matter what I...
How to sort git tags by version string order of form rc-X.Y.Z.W?
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With Git 2.0 (June 2014), you will be able to specify a sorting order!
See commit b6de0c6, from commit 9ef176b, authored by Nguyễn Thái Ngọc Duy (pclouds):
--sort=<type>
Sort in a specific order.
Supported type is:
"refname" (lexicographic order),
"version:...
How to make lists contain only distinct element in Python? [duplicate]
...t(set(my_list))
One disadvantage with this is that it won't preserve the order. You may also want to consider if a set would be a better data structure to use in the first place, instead of a list.
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Bootstrap right Column on top on mobile view
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Use Column ordering to accomplish this.
col-md-push-6 will "push" the column to the right 6 and col-md-pull-6 will "pull" the column to the left on "md" or greater view-ports. On any smaller view-ports the columns will be in normal or...
Why does C++11 not support designated initializer lists as C99? [closed]
...= 2 } is invalid in C++ because designators must appear in the declaration order of the data members
int arr[3] = { [1] = 5 } is invalid in C++ because array designated initialization is not supported
struct B b = {.a.x = 0} is invalid in C++ because designators cannot be nested
struct A c = {.x = 1...
What is stability in sorting algorithms and why is it important?
...thm is said to be stable if two objects with equal keys appear in the same order in sorted output as they appear in the input array to be sorted. Some sorting algorithms are stable by nature like Insertion sort, Merge Sort, Bubble Sort, etc. And some sorting algorithms are not, like Heap Sort, Quick...