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Why is quicksort better than mergesort?
...eks to disk. For instance this is why it is standard advice that you drop indexes before doing large data loads in databases, and then rebuild the index later. Maintaining the index during the load means constantly seeking to disk. By contrast if you drop the indexes, then the database can rebuil...
allowDefinition='MachineToApplication' error when publishing from VS2010 (but only after a previous
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Yes... adding rmdir /S /Q "$(ProjectDir)\obj" to the post build section as per the Microsoft Ticket solved the problem!
– Leniel Maccaferri
May 3 '12 at 21:16
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Sorted collection in Java
... search and move).
However, unlike a List, PriorityQueue does not support indexed access (get(5)), the only way to access items in a heap is to take them out, one at a time (thus the name PriorityQueue).
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iOS (iPhone, iPad, iPodTouch) view real-time console log terminal
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The solution documented by Apple in Technical Q&A QA1747 Debugging Deployed iOS Apps for Xcode 6 is:
Choose Window -> Devices from the Xcode menu.
Choose the device in the left column.
Click the up-triangle at the bottom left of the right hand panel to show the ...
OS X Bash, 'watch' command
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Also, it's echo "$(date)" equivalent to date?
– Daniel Lubarov
Nov 27 '13 at 5:02
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Solr vs. ElasticSearch [closed]
...ace]
No autowarming feature [not applicable anymore according to the new Index Warmup API]
Initial Answer
They are completely different technologies addressing completely different use cases, thus cannot be compared at all in any meaningful way:
Apache Solr - Apache Solr offers Lucene's...
Explanation of JSONB introduced by PostgreSQL
...son.
If you do a lot of operations on the JSON value in PostgreSQL, or use indexing on some JSON field, you should use jsonb.
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What is the difference between “JPG” / “JPEG” / “PNG” / “BMP” / “GIF” / “TIFF” Image?
...ively worse and worse.
There are also different colour depths (palettes): Indexed color and Direct color.
With Indexed it means that the image can only store a limited number of colours (usually 256) that are chosen by the image author, with Direct it means that you can store many thousands of co...
When would you call java's thread.run() instead of thread.start()?
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Taken form the Code Style Java threads FAQ:
Q: What's the difference between a
thread's start() and run() methods?
A: The separate start() and run() methods in the Thread class provide
two ways to create threaded programs.
The start() method starts the
execution of...
Get key by value in dictionary
...ver name for whatever language). In python, it's a fact that you can still index through the values of the structure to find out the corresponding keys.
– Tropicalrambler
Jun 8 at 2:49
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