---
title: Getting help
description: Built-in help — a command list, per-command detail, and the type reference.
sidebar:
  order: 8
---

The playground has help built in, so you rarely need to leave it.

```rdbms
help
```
Lists the supported commands, with the grammar reference and the type list.

```rdbms
help insert
```
`help <command>` shows detail for one command (every command sharing that
entry word). Try `help create`, `help add`, `help show`, and so on.

```rdbms
help types
```
Shows the type reference on its own.

Outside the app, run `rdbms-playground --help` for the
[command-line options](/using-the-playground/command-line-options/).
