OQL is an actively used query language. Object Query Language (OQL) is a query language standard for object-oriented databases modeled after SQL. OQL was developed by the Object Data Management Group (ODMG). Because of its overall complexity nobody has ever fully implemented the complete OQL. Read more on Wikipedia...

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Example code from the web:

select c.address
from Persons p, p.children c
where p.address.street = "Main Street" and count(p.children) >= 2 and c.address.city != p.address.city

Last updated August 9th, 2020

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