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difference between primary key and unique key
I'm using mysql database. I have a confusion between primary key and unique key.
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Can you build dynamic libraries for iOS and load them at runtime?
Are dynamic libraries supported on iOS (iPhone/iPad)?
3 Answers
3
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Android Fragment lifecycle over orientation changes
Using the compatibility package to target 2.2 using Fragments.
7 Answers
7
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OpenJDK availability for Windows OS [closed]
Is there any OpenJDK version available to Windows OS? From the OpenJDK home page ( http://openjdk.java.net/ ) it redirects to Oracle Sun JRE for Windows machine.
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How to convert an integer to a string in any base?
Python allows easy creation of an integer from a string of a given base via
27 Answers
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What is the difference between And and AndAlso in VB.NET?
In VB.NET, what is the difference between And and AndAlso ? Which should I use?
11 Answers
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Difference between binary tree and binary search tree
Can anyone please explain the difference between binary tree and binary search tree with an example ?
12 Answers
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How does the HyperLogLog algorithm work?
I've been learning about different algorithms in my spare time recently, and one that I came across which appears to be very interesting is called the HyperLogLog algorithm - which estimates how many unique items are in a list.
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Can you supply arguments to the map(&:method) syntax in Ruby?
You're probably familiar with the following Ruby shorthand ( a is an array):
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https URL with token parameter : how secure is it?
On our site, we provide to users a simulation based on their private information (given through a form). We would like to allow them to get back on their simulation results later, but without forcing them to create a login/password account.
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