The on-line documentation for each of these databases (and the in-client help for MariaDB and PostgreSQL) includes extensive information on SQL syntax. I found the SQLite syntax diagrams to be ...

sqlite db < dump.sql This creates the database db if it doesn't exit. The reverse process to dump a database would be: sqlite db .dump > dump.sql SQLite is powerful. Its wide application, ease of use, ...

Like SQL, UnQL was built on the foundation of relational algebra, Phillips said. This foundation should provide assurance that using the language will produce predictable and repeatable results.