Created by Michaela Coel. PostgreSQL is crash-safe within certain limits. That's what the D in ACID means - atomicity, consistency, isolation, durability.. Crash Safety. psql -U postgres -c ‘drop database database_name’ If the database exists, it won’t anymore. Description. None of the answers above actually describe how to destroy a Heroku database, which was the original question (and what led me here seeking an answer).. From their docs, either of these will work:. -name: Create a new database with name "acme" community.general.postgresql_db: name: acme # Note: If a template different from "template0" is specified, encoding and locale settings must match those of the template.-name: Create a new database with name "acme" and specific encoding and locale # settings. The user who executes this command must be a database superuser or the owner of the database. For example: $ psql testdb psql (12.5) Type "help" for help. Its concurrency support makes it fully ACID compliant, and it supports dynamic loading and catalog-driven operations to let users customize its data types, functions, and more. dropdb destroys an existing PostgreSQL database. PostgreSQL is an open source, object-relational database built with a focus on extensibility, data integrity, and speed. In normal operation, psql provides a prompt with the name of the database to which psql is currently connected, followed by the string =>. dropdb is a wrapper around the SQL command DROP DATABASE.There is no effective difference between dropping databases via this utility and via other methods for accessing the server. I need to write a script that will drop a PostgreSQL database. The critical feature in PostgreSQL's crash safety is the write-ahead log (WAL). There may be a lot of connections to it, but the script should ignore that. PostgreSQL and other relational database management systems use databases and tables to structure and organize their data. These volumes allow the data to persist even if we destroy … heroku addons:destroy heroku-postgresql:tier (where tier is the database tier, like hobby-dev); heroku addons:destroy HEROKU_POSTGRESQL_ (if you have more than one database of that tier) With Michaela Coel, Weruche Opia, Paapa Essiedu, Stephen Wight. It guarantees to always preserve committed data if the database system crashes or the host it's on reboots/loses power/crashes unexpectedly. Its concurrency support makes it fully ACID compliant, and it supports dynamic loading and catalog-driven operations to let users customize its data types, functions, and more. testdb=> At the prompt, the user can type in SQL commands. 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