Database Links
SQLite
SQLite tutorial
Chinook database (.db file)
Chinook - DB diagram
sqlite3 man page
sqlite3 command line (help)
SQLite Commands
Datatypes in SQLite
DB Browser for SQLite
SQLiteStudio
MariaDB
MariaDB - learn
MariaDB - Knowledge Base
MariaDB Connectors
MariaDB Connector/J
MariaDB Connector/J (old downloads)
MySQL DataBase
MySQL 5.7 Reference Manual
MySQL Connector/J (Eclipse DTP)
WinSQL
JaySQL
SQuirreL SQL
Eclipse SQL Explorer
DBeaver - Universal SQL Client
Antares - SQL Client
MongoDB (NoSQL database)
Apache Cassandra
Apache CouchDB