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What are the options for storing hierarchical data in a relational database? [closed]
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Algorithm to detect corners of paper sheet in photo
What is the best way to detect the corners of an invoice/receipt/sheet-of-paper in a photo? This is to be used for subsequent perspective correction, before OCR.
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Passing parameters to a Bash function
I am trying to search how to pass parameters in a Bash function, but what comes up is always how to pass parameter from the command line.
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Django: How to manage development and production settings?
I have been developing a basic app. Now at the deployment stage it has become clear I have need for both a local settings and production settings.
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Why does int i = 1024 * 1024 * 1024 * 1024 compile without error?
The limit of int is from -2147483648 to 2147483647.
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How do you merge two Git repositories?
Consider the following scenario:
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How do you get the list of targets in a makefile?
I've used rake a bit (a Ruby make program), and it has an option to get a list of all the available targets, eg
20 Answers
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What is causing ERROR: there is no unique constraint matching given keys for referenced table?
Below example table structure gives an ERROR: there is no unique constraint matching given keys for referenced table, and having stared at it for while now I can't figure out why this error arises in this situation.
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How to append something to an array?
How do I append an object (such as a string or number) to an array in JavaScript?
30 Answers
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nginx: [emerg] could not build the server_names_hash, you should increase server_names_hash_bucket_s
I'm in the process of setting up a new server. The http-Server of my choice is NGINX. I want to add the domain audi-freunde-einbeck.de as a virtual host. I already have 2 other domains in there and it works fine, but when I try to add the above mentioned domain and start the server it gives me Jo...