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The demo database is available atedu.postgrespro.com in three flavors, which differ only in the data size:

The small database is good for writing queries, and it will not take up much disk space. The large database can help you understand the query behavior on large data volumes and consider query optimization.

The files include anSQL script that creates thedemo database and fills it with data (virtually, it is a backup copy created with thepg_dump utility). Note that if thedemo database already exists, it will be deleted and recreated! The owner of thedemo database will be the DBMS user who run the script.