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143 lines
4.1 KiB
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143 lines
4.1 KiB
Plaintext
---
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id: database
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title: Database
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description: Use Supabase to manage your data.
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---
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import ExtensionsComponent from '../../src/components/Extensions'
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Supabase is built on top of [Postgres](/docs/postgres/server/about), an extremely scalable Relational Database.
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## Features
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### Table View
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You don't have to be a database expert to start using Supabase. Our table view makes Postgres as easy to use as a spreadsheet.
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### Relationships
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Dig into the relationships within your data.
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<video width="99%" loop="" muted="" playsInline="" controls="true">
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<source src="/videos/relational-drilldown-zoom.mp4" type="video/mp4" />
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</video>
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### Clone tables
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You can duplicate your tables, just like you would inside a spreadsheet.
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<video width="99%" muted playsInline controls={true}>
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<source src="/videos/duplicate-tables.mp4" type="video/mp4" muted playsInline />
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</video>
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### The SQL Editor
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Supabase comes with a SQL Editor. You can also save your favorite queries to run later!
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<video width="99%" muted playsInline controls={true}>
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<source src="/videos/favourites.mp4" type="video/mp4" muted playsInline />
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</video>
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### Additional features
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- Supabase extends Postgres with realtime functionality using our [Realtime Server](/docs/realtime/server/about).
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- Every project is a full Postgres database, with `postgres` level access.
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- Managed backups - Supabase handles all your database backups.
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- Data imports - import directly from a CSV or excel spreadsheet.
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## Extensions
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### Enable and disable extensions
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To expand the functionality of your Postgres database, you can use extensions.
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You can enable Postgres extensions with the click of a button within the Supabase dashboard.
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<video width="99%" muted playsInline controls={true}>
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<source src="/videos/toggle-extensions.mp4" type="video/mp4" muted playsInline />
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</video>
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### Full list of extensions
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Supabase is pre-configured with over 50 extensions. You can also install your own SQL extensions directly into the database through our SQL editor.
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<ExtensionsComponent />
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## Tips
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### Realtime
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Supabase provides a realtime engine on top of Postgres, so that you can listen to changes as they happen.
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Our realtime engine uses the built-in replication functionality of Postgres.
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You can manage the realtime system, simply by
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[updating](http://localhost:3006/docs/reference/postgres/publications) the `supabase_realtime` publication.
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For example to enable realtime only for individual tables:
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```sql
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begin;
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-- remove the realtime publication
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drop publication if exists supabase_realtime;
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-- re-create the publication but don't enable it for any tables
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create publication supabase_realtime;
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commit;
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-- add a table to the publication
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alter publication supabase_realtime add table products;
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-- add other tables to the publication
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alter publication supabase_realtime add table posts;
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```
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By default only "new" values are sent, but if you want to receive the old record (previous values) whenever you `update` or `delete` a record,
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you can update the replica identity of your tables, setting it to `full`:
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```sql
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alter table_name your_table
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replica identity full;
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```
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### Resetting your project password
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When you create a new project in Supabase we ask for a password. You can use this password to connect direcly to your Postgres database.
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If you forget your password, you can reset it from the Dashboard SQL editor:
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For example:
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```sql
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alter user postgres
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with password 'new_password';
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```
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Read more in [Database Configuration](/docs/reference/postgres/database-passwords).
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### Changing the timezone of your server.
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Your database is initialized with the UTC timezone. We recommend keeping it this way, as it is helpful for time calculations.
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If, however, you want to update the timezone, you can do so using any of the [database timezones](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones).
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For example:
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```sql
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alter database postgres set timezone to 'America/New_York';
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```
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Read more in [Database Configuration](/docs/reference/postgres/changing-timezones).
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## Next steps
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- Read more about [Postgres](/docs/postgres/server/about)
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- Sign in: [app.supabase.io](https://app.supabase.io)
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