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How to choose the id generation strategy when using JPA and Hibernate
I was going through Id generation section of the Hibernate reference guide and "java persistence with Hibernate"
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Differences between utf8 and latin1
what is the difference between utf8 and latin1?
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Difference between Document-based and Key/Value-based databases?
I know there are three different, popular types of non-sql databases.
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How to test if list element exists?
I would like to test if an element of a list exists, here is an example
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How to deal with “data of class uneval” error from ggplot2?
While trying to overlay a new line to a existing ggplot I am getting the following error:
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How to create index on JSON field in Postgres?
In PostgreSQL 9.3 Beta 2 (?), how do I create an index on a JSON field? I tried it using the -> operator used for hstore but got the following error:
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What is `params.require(:person).permit(:name, :age)` doing in Rails 4?
All the examples of strong parameters in Rails 4 docs use
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HTTP 401 - what's an appropriate WWW-Authenticate header value?
The application I'm working on at the moment has a session timeout value. If the user hasn't interacted for longer than this value, the next page they try to load, they will be prompted to log in.
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Visual Studio 2010 - C++ project - remove *.sdf file
I would like to know if I can safely delete the sdf file that stores information for Visual Studios Intellisense - is it going to be rebuilt the next time that I open the solution?
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Which data type for latitude and longitude?
I am newbie to PostgreSQL and PostGIS. I want to store latitude and longitude values in PostgreSQL 9.1.1 database table. I will calculate distance between two points, find nearer points by using this location values.
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