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Possible to do a MySQL foreign key to one of two possible tables?

Well here's my problem I have three tables; regions, countries, states. Countries can be inside of regions, states can be inside of regions. Regions are the top of the food chain. ...
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How to export data as CSV format from SQL Server using sqlcmd?

... You can run something like this: sqlcmd -S MyServer -d myDB -E -Q "select col1, col2, col3 from SomeTable" -o "MyData.csv" -h-1 -s"," -w 700 -h-1 removes column name headers from the result -s"," sets the column seperator to , -w 700 sets the row width to 700 chars (this...
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How do I write a “tab” in Python?

Let's say I have a file. How do I write "hello" TAB "alex"? 6 Answers 6 ...
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Multiple inheritance for an anonymous class

...ymous class implement two (or more) interfaces? Alternatively, how can it both extend a class and implement an interface? For example, I want to create an object of anonymous class that extends two interfaces: ...
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What is the difference between .map, .every, and .forEach?

I've always wondered what the difference between them were. They all seem to do the same thing... 4 Answers ...
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How to switch back to 'master' with git?

I have made my first commit; then created a branch (let's say branch1). 5 Answers 5 ...
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Dynamically set local variable [duplicate]

How do you dynamically set local variable in Python (where the variable name is dynamic)? 7 Answers ...
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How can I merge properties of two JavaScript objects dynamically?

I need to be able to merge two (very simple) JavaScript objects at runtime. For example I'd like to: 63 Answers ...
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How can I see the entire HTTP request that's being sent by my Python application?

In my case, I'm using the requests library to call PayPal's API over HTTPS. Unfortunately, I'm getting an error from PayPal, and PayPal support cannot figure out what the error is or what's causing it. They want me to "Please provide the entire request, headers included". ...
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What is the difference between HTTP status code 200 (cache) vs status code 304?

I'm using the Google "Page Speed" plug-in for Firefox to access my web site. 5 Answers ...