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Explanation of JSONB introduced by PostgreSQL
PostgreSQL just introduced JSONB and it's already trending on hacker news . It would be great if someone could explain how it's different from Hstore and JSON previously present in PostgreSQL. What are its advantages and limitations and when should someone consider using it?
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Cause CMAKE to generate an error
How can I get CMAKE to generate an error on a particular condition. That is, I want something like this:
1 Answer
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How to get current date in jquery?
I want to know how to use the Date() function in jQuery to get the current date in a yyyy/mm/dd format.
30 Answers
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How to set host_key_checking=false in ansible inventory file?
I would like to use ansible-playbook command instead of ' vagrant provision '. However setting host_key_checking=false in the hosts file does not seem to work.
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How to redirect stderr to null in cmd.exe
I have an application that logs a lot of noise to stderr and REALLY slows down the execution of the application. I would like to redirect that output to null. Is this possible with cmd.exe?
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How do I obtain the frequencies of each value in an FFT?
I have an FFT result. These are stored in two double arrays: a real part array and an imaginary part array. How do I determine the frequencies that correspond to each element in these arrays?
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Retrieving the last record in each group - MySQL
There is a table messages that contains data as shown below:
27 Answers
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How to get VM arguments from inside of Java application?
I need to check if some option that can be passed to JVM is explicitly set or has its default value.
5 Answers
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How to extract public key using OpenSSL?
The following command generates a file which contains both public and private key:
5 Answers
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Strip all non-numeric characters from string in JavaScript
Consider a non-DOM scenario where you'd want to remove all non-numeric characters from a string using JavaScript/ECMAScript. Any characters that are in range 0 - 9 should be kept.
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