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How do I modify a MySQL column to allow NULL?

... 6 Answers 6 Active ...
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Retrieve only static fields declared in Java class

I have the following class: 4 Answers 4 ...
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How to ignore user's time zone and force Date() use specific time zone

In an JS app, I receive timestamp (eq. 1270544790922 ) from server (Ajax). 7 Answers ...
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Xcode Product -> Archive disabled

I have been archiving for ad hoc distribution fine for many months and suddenly today I cannot do so as the Archive menu item is disabled. I have not changed anything. I went through the provisioning setup for the project and it looks ok. ...
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Java: Difference between the setPreferredSize() and setSize() methods in components

What is the main difference between setSize() and setPreferredSize() . Sometimes I used setSize() , sometimes setPreferredSize() , sometimes one does what I want, sometimes the other. ...
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Check if list of objects contain an object with a certain attribute value

I want to check if my list of objects contain an object with a certain attribute value. 1 Answer ...
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How do I make this file.sh executable via double click?

First off I'm using Mac. 5 Answers 5 ...
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How to correctly use “section” tag in HTML5?

I'm trying to build a layout in HTML5 and after reading several different articles I'm just confused. I'm trying to get some input on how it should be used. ...
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How to create a unique index on a NULL column?

I am using SQL Server 2005. I want to constrain the values in a column to be unique, while allowing NULLS. 4 Answers ...
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DefaultInlineConstraintResolver Error in WebAPI 2

I'm using Web API 2 and I'm getting the following error when I send a POST to my API method using IIS 7.5 on my local box. ...