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org-ql
A searching tool for Org-mode, including custom query languages, commands, saved searches and agenda-like views, etc.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
IIUC, this might help construct “queries” on your “org database” https://github.com/alphapapa/org-ql
Org-sql also provides such a database, but with another focus. I'll find out which is more useful in this case.
It takes a query of org-ql, which has already been mentioned by another people, and crafts a statement that transcludes the element (i.e. in inserts the contents of the headings matching the query) when org-transclusion (https://github.com/nobiot/org-transclusion) is active