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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.
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Is there a benefit to defining a class inside another class in Python?
What I'm talking about here are nested classes. Essentially, I have two classes that I'm modeling. A DownloadManager class and a DownloadThread class. The obvious OOP concept here is composition. However, composition doesn't necessarily mean nesting, right?
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In Markdown, what is the best way to link to a fragment of a page, i.e. #some_id?
I'm trying to figure out how to reference another area of a page with Markdown. I can get it working if I add a
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Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
What is the most efficient algorithm to achieve the following:
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How is the java memory pool divided?
I’m currently monitoring a Java application with jconsole. The memory tab lets you choose between:
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Memory management in Qt?
I'm quite new to Qt and am wondering on some basic stuff with memory management and the life of objects. When do I need to delete and/or destroy my objects? Is any of this handled automatically?
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Read a text file using Node.js?
...to pass in a text file in the terminal and then read the data from it, how can I do this?
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E731 do not assign a lambda expression, use a def
...p8 warning whenever I use lambda expressions. Are lambda expressions not recommended? If not why?
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Android: textColor of disabled button in selector not showing?
I am trying to make a button with a selector my button can have the following states:
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When to use SELECT … FOR UPDATE?
Please help me understand the use-case behind SELECT ... FOR UPDATE .
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