> ## Documentation Index
> Fetch the complete documentation index at: https://docs.exmergo.com/llms.txt
> Use this file to discover all available pages before exploring further.

# dex demo

> Reference for dex demo: create a seeded local DuckDB warehouse with realistic data quality problems, no credentials or network, to try every dex command on.

create a seeded local DuckDB warehouse to try dex against (no credentials, no network)

```text theme={null}
dex demo [<target>]
```

**Arguments**

| Argument | Description | Default |
| - | - | - |
| `[<target>]` | DuckDB file to create, refused if it exists (default: dex\_demo.duckdb) | |

Every command here also accepts the [global options](/dex/cli/overview#global-options).

Source: [`packages/dex-core/src/exmergo_dex_core/cli.py`](https://github.com/exmergo/dex/blob/v1.14.1/packages/dex-core/src/exmergo_dex_core/cli.py) ([edit on main](https://github.com/exmergo/dex/edit/main/packages/dex-core/src/exmergo_dex_core/cli.py)). This page is generated; change the source, not the site.


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