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What's faster, SELECT DISTINCT or GROUP BY in MySQL?
...AND specific version! As implementations may change...
BUT, if you select more than one column in the query, then the DISTINCT is essentially different! Because in this case it will compare ALL columns of all rows, instead of just one column.
So if you have something like:
// This will NOT return...
how to delete all cookies of my website in php
... $_COOKIE array. Do you have any reason for that? To me it only looks like more (double) work for the parser.
– poke
Feb 22 '10 at 12:24
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How do I convert CamelCase into human-readable names in Java?
...re are 3 patterns, and I use String.format to put them together to make it more readable.
The three patterns are:
UC behind me, UC followed by LC in front of me
XMLParser AString PDFLoader
/\ /\ /\
non-UC behind me, UC in front of me
MyClass 99Bottles
/\ ...
Statistics: combinations in Python
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python location on mac osx
...uild 5646)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>>
# python.org Python 2.7.2 (also built with newer gcc)
$ /usr/local/bin/python
Python 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
T...
How to set input type date's default value to today?
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java: ArrayList - how can i check if an index exists?
...list.set(1, item1); mylist.set(3, item3); //skipping 2 I guess HashMap is more suitable for that scenario?
– yeahman
Feb 27 '16 at 6:55
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Maven error “Failure to transfer…”
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UICollectionView reloadData not functioning properly in iOS 7
... run on iOS 7 which is going smoothly for the most part. I have noticed in more than one app that the reloadData method of a UICollectionViewController isn't acting quite how it used to.
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How to downgrade or install an older version of Cocoapods
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