How to Pivot an Entity-Attribute-Value (EAV) Schema in MySQL?

Pivoting Entity-Attribute-Value Schema in MySQL

In the realm of data management, the need often arises to convert an entity-attribute-value (EAV) schema into a pivoted format for enhanced readability and analysis. This question demonstrates a scenario where metadata is stored in an EAV manner, and the desired output is a more traditional tabular structure.

Using MySQL, we can leverage the power of the GROUP_CONCAT() function to achieve this transformation. As mentioned in the response, this function concatenates values grouped by a common expression while maintaining the order of appearance.

To pivot the data as specified, we employ the following query:

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