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Can a foreign key be NULL and/or duplicate?
Please clarify two things for me:
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Alternate background colors for list items
I have a list, and each item is linked, is there a way I can alternate the background colors for each item?
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Set the value of a variable with the result of a command in a Windows batch file
When working in a Bash environment, to set the value of a variable as the result of a command, I usually do:
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Fundamental difference between Hashing and Encryption algorithms
I see a lot of confusion between hashes and encryption algorithms and I would like to hear some more expert advice about:
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Is there a way to create a function from a string with javascript?
For example;
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Best algorithm for detecting cycles in a directed graph [closed]
What is the most efficient algorithm for detecting all cycles within a directed graph?
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Difference between DTO, VO, POJO, JavaBeans?
Have seen some similar questions:
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What is a magic number, and why is it bad? [closed]
What is a magic number?
15 Answers
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What is the purpose of backbone.js?
I tried to understand the utility of backbone.js from its site http://documentcloud.github.com/backbone , but I still couldn't figure out much.
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Change column type from string to float in Pandas
I want to convert a table, represented as a list of lists, into a Pandas DataFrame . As an extremely simplified example:
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