Entity-Attribute-Value. A data model with a potentially big number of attributes of which only few apply to a single entity.

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Design and queries for analysis of event-sequences

I will have to store sequences of events with certain properties in a database (MariaDB preferably) and I have some issues regarding the design and queries. The crucial part is the analysis of the ...
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Architecture for huge catalog of products

I need to upgrade my current system of product catalog. For currently I have a 12 000 items in catalog, it's not a lot, but I need to improve them for feature. I have a task to reorganize my database ...
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Best way to store combobox options for an EAV table

I don't know if this question belongs to StackOverflow, but here it is: I have an EAV table: mysql> describe keywords; +-------------+--------------+------+-----+---------+----------------+ | ...