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29 lines
1.1 KiB
Plaintext
29 lines
1.1 KiB
Plaintext
---
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title: 'Drop all tables in a PostgreSQL schema'
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description: 'Useful snippet for deleting all tables in a given schema'
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footerHelpType: 'postgres'
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---
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Execute the following query to drop all tables in a given schema.
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Replace `my-schema-name` with the name of your schema. In Supabase, the default schema is `public`.
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<Admonition type="caution">
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This deletes all tables and their associated data. Ensure you have a recent [backup](/docs/guides/platform/backups) before proceeding.
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</Admonition>
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```sql
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do $$ declare
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r record;
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begin
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for r in (select tablename from pg_tables where schemaname = 'my-schema-name') loop
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execute 'drop table if exists ' || quote_ident(r.tablename) || ' cascade';
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end loop;
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end $$;
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```
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This query works by listing out all the tables in the given schema and then executing a `drop table` for each (hence the `for... loop`).
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You can run this query using the [SQL Editor](https://supabase.com/dashboard/project/_/sql) in the Supabase Dashboard, or via `psql` if you're [connecting directly to the database](/docs/guides/database/connecting-to-postgres#direct-connections).
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