UnQL is a query language created in 2000 by Peter Buneman and Mary Fernandez and Dan Suciu.
| #3620on PLDB | 24Years Old |
A Query Language and Algebra for Semistructured Data Based on Structural Recursion
query Q1 :=
select {result: E}
where {country: {name: "France", people: {ethnicGroup: E}}} in db