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How to change int into int64?

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What are free monads?

I've seen the term Free Monad pop up every now and then for some time, but everyone just seems to use/discuss them without giving an explanation of what they are. So: what are free monads? (I'd say I'm familiar with monads and the Haskell basics, but have only a very rough knowledge of cat...
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How do I fix "The expression of type List needs unchecked conversion…'?

In the Java snippet: 9 Answers 9 ...
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ASP.NET MVC JsonResult Date Format

...ill never get serialized to "\/" (even "\/" must be mapped to "\\/"). See http://msdn.microsoft.com/en-us/library/bb299886.aspx#intro_to_json_topic2 for a better explanation (scroll down to "From JavaScript Literals to JSON") One of the sore points of JSON is the lack of a date/time literal. ...
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What is the exact meaning of IFS=$'\n'?

... From http://www.linuxtopia.org/online_books/bash_guide_for_beginners/sect_03_03.html: Words in the form "$'STRING'" are treated in a special way. The word expands to a string, with backslash-escaped characters replaced ...
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How can I list all foreign keys referencing a given table in SQL Server?

I need to remove a highly referenced table in a SQL Server database. How can I get a list of all the foreign key constraints I will need to remove in order to drop the table? ...
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Update Row if it Exists Else Insert Logic with Entity Framework

Does anyone have suggestions on the most efficient way to implement "update row if it exists else insert" logic using Entity Framework? ...
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What is Castle Windsor, and why should I care?

...a reflection and configuration rather than the "new" operator. Start here: http://tech.groups.yahoo.com/group/altdotnet/message/10434 Imagine you have an email sending class. EmailSender. Imagine you have another class WorkflowStepper. Inside WorkflowStepper you need to use EmailSender. You could...
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What is the difference between `sorted(list)` vs `list.sort()`?

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Split column at delimiter in data frame [duplicate]

I would like to split one column into two within at data frame based on a delimiter. For example, 6 Answers ...