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How to query as GROUP BY in django?
...bquery
Or in a custom manager as shown in the online Django docs:
Adding extra Manager methods
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How do I generate random integers within a specific range in Java?
...this case means that after 2^53 executions, some numbers will have had one extra occourance, on average.
– Cephalopod
Aug 29 '19 at 9:48
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It is more efficient to use if-return-return or if-else-return?
...e blocks when possible. See the Anti-if Campaign
Also, they don't charge 'extra' for the line, you know :p
"Simple is better than complex" & "Readability is king"
delta = 1 if (A > B) else -1
return A + delta
sha...
Copy a file in a sane, safe and efficient way
...; src.rdbuf();
}
This is so simple and intuitive to read it is worth the extra cost. If we were doing it a lot, better to fall back on OS calls to the file system. I am sure boost has a copy file method in its filesystem class.
There is a C method for interacting with the file system:
#include ...
efficient way to implement paging
...ple?
We don't use LINQ or straight access to the tables as we require the extra layer of security (granted the dynamic SQL breaks this somewhat).
Something like this should do the trick. You can add in parameterized values for parameters, etc.
exec sp_executesql 'WITH MyCTE AS (
SELECT TOP (...
When to use Spring Integration vs. Camel?
...ntegration of Kafka is pressed into the SI-way of doing things, which adds extra complexity. Other documentation, e.g. on Stackoverflow is also less plentiful and less helpful than for Camel.
My conclusion: cobbler stick to your trade - use Spring as a container and Camel as system integration fram...
How to send a command to all panes in tmux?
...p a key binding - without the prefix, if you like - to toggle and focus an extra pane with your shell of choice, instead of sending <prefix>: before each command, losing the output after leaving the command, and all of the pitfalls that come with executing through Tmux. For example, <prefix...
Show the progress of a Python multiprocessing pool imap_unordered call?
... @WakanTanka: It goes in the main script after it spins off the extra threads. In my original example, it goes in the "while" loop, where rs has already launched the other threads.
– MidnightLightning
Aug 24 '15 at 11:58
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Comparison of full text search engine - Lucene, Sphinx, Postgresql, MySQL?
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<uniqueKey>id</uniqueKey>
<field name="solr_name" type="string" indexed="true" stored="true" />
Implementation
Indexing
This is where the real deal is. You need to do the indexing of data from MySQL to Solr inorder to make use of Solr Queries.
Step 1: Go to Solr Admin ...
Find kth smallest element in a binary search tree in Optimum way
...l BST operations take O(depth of node) time, and it takes O(depth of node) extra time to maintain the "number of elements" information for insertion, deletion or rotation of nodes. Therefore, storing information about the number of elements in the left subtree keeps the space and time complexity of ...