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23 lines
678 B
Markdown
23 lines
678 B
Markdown
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---
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title: Truncate a database from the inside
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tags:
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- PostgreSQL
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emoji: 🐘
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---
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How to delete database from the inside, with only access to that database.
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The primary way this works is by using `pg_dump`'s ability to drop a schema before recreating it.
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This creates a dump of the database without any data, and with a fresh schema (drop then rebuild). This output is then `grep`'d to only contain the drops.
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```sh
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pg_dump -cs "postgres://<database url>" | grep DROP > drops.psql.sql
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```
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Now run the drops. These drops are specifically designed for this schema so should be complete and in the correct order.
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```sh
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psql "postgres://<database url>" < drops.psql.sql
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```
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