Astronomical Data Query Language (ADQL) is a language for astronomical data query based on SQL 92.
[1] ADQL is a specialized variant of the SQL query language adapted for accessing the astronomical datasets of the virtual observatory,[2] via the Table access protocol (TAP).
[3] ADQL is designed to handle large datasets distributed over several locations,[4] while not retrieving data that is not needed.
[5] ADQL is a query language that allows data to be retrieved via a single command, the select statement, which is designed to perform as the select statement in the SQL language.
You can help Wikipedia by expanding it.This astronomy-related article is a stub.