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Is there any performance gain in indexing a boolean field?
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82
Not really. You should think about it like a book. If there were only 3 kinds of words in a book...
“Rate This App”-link in Google Play store app on the phone
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edited Aug 10 at 12:01
Kishan Solanki
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rsync: how can I configure it to create target directory on server?
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162
If you have more than the last leaf directory to be created, you can either run a separate ssh ....
How do I alter the position of a column in a PostgreSQL database table?
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answered Nov 12 '08 at 23:08
Bill KarwinBill Karwin
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What is the difference between concurrent programming and parallel programming?
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312
If you program is using threads (concurrent programming), it's not necessarily going to be execu...
How do I sort an NSMutableArray with custom objects in it?
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27 Answers
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How can I get current location from user in iOS
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answered Jul 4 '12 at 18:35
dplusmdplusm
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How do you UrlEncode without using System.Web?
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answered Oct 24 '11 at 15:29
ToddBFisherToddBFisher
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In C, how should I read a text file and print all strings
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132
The simplest way is to read a character, and print it right after reading:
int c;
FILE *file;
f...