# Query Languages

- Page: https://shared.btbytes.com/p/query-languages
- Date: 2023-08-14
- Tags: sql

There is of course [sql](https://shared.btbytes.com/p/sql).. and

[PRQL](https://prql-lang.org/) -- Pipelined Relational Query Language, pronounced “Prequel”. The web page has good examples and the advantages; probably the most promising looking of these query languages I have known so far (aug 2023).

And there is [hydromatic/morel: Standard ML interpreter, with relational extensions, implemented in Java](https://github.com/hydromatic/morel).. the reasoning behind the creation of Morel is given here -- [Morel: A functional language for data | Julian Hyde on Streaming Data, Open Source OLAP. And stuff.](http://blog.hydromatic.net/2020/02/25/morel-a-functional-language-for-data.html). The creator of Morel is also behind Apache Calcite, Mondrian (OLAP tool, IIRC).