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Is it fine to have foreign key as primary key?

...n to this are tables with a one-to-one relationship, where the foreign key and primary key of the linked table are one and the same. share | improve this answer | follow ...
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How do I fix PyDev “Undefined variable from import” errors?

I've got a Python project using PyDev in Eclipse, and PyDev keeps generating false errors for my code. I have a module settings that defines a settings object. I import that in module b and assign an attribute with: ...
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Simple logical operators in Bash

I have a couple of variables and I want to check the following condition (written out in words, then my failed attempt at bash scripting): ...
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Using parameters in batch files at Windows command line

... As others have already said, parameters passed through the command line can be accessed in batch files with the notation %1 to %9. There are also two other tokens that you can use: %0 is the executable (batch file) name as specified in the command line. %* is all parameters specified i...
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String.format() to format double in java

... If there is more than one double to format, use %1, %2, and so on. For example String.format("%1$,.2f, %2$,.2f", myDouble, aDouble) – Moesio Mar 10 '13 at 5:29 ...
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How to set xlim and ylim for a subplot in matplotlib [duplicate]

I would like to limit the X and Y axis in matplotlib but for a speific subplot. As I can see subplot figure itself doesn't have any axis property. I want for example to change only the limits for the second plot! ...
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multi-layer perceptron (MLP) architecture: criteria for choosing number of hidden layers and size of

...ayer.But what is the criteria for choosing number of hidden layer in a MLP and how many neural nodes in 1 hidden layer? 4 A...
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Setting DIV width and height in JavaScript

... The properties you're using may not work in Firefox, Chrome, and other non-IE browsers. To make this work in all browsers, I also suggest adding the following: document.getElementById('div_register').setAttribute("style","width:500px"); For cross-compatibility, you will still need t...
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Git for Windows - The Program can't start because libiconv2.dll is missing

When I attempt to run certain commands (like git push, for example) from a git Bash on Windows 7 (64bit) I get the error: 2...
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AngularJS best practices for module declaration?

... 'Best' way to declare a module As angular is on the global scope itself and modules are saved to its variable you can access modules via angular.module('mymod'): // one file // NOTE: the immediately invoked function expression // is used to exemplify different files and is not required (functio...