# dap schema

This command generates and downloads the schema of a specific table within a specified namespace in JSON format.

### Usage

```
dap [arguments] schema [flags]
```

### Options

**`--namespace <string>`**\
Specifies the data source (namespace). Available options: {canvas, canvas\_logs, catalog, new\_quizzes}.

**`--table <string>`**\
Specifies the tables whose schemas to fetch. Can be a single table name, a comma separated list of table names or the special `all` keyword to fetch all tables in the namespace.

**`--output-directory <string> (default: downloads)`**\
Specifies the absolute or relative path to the output directory where the snapshot will be stored.

### Global options

**`--client-id <string>`**\
Client ID obtained from the Identity Service. Skip, if `DAP_CLIENT_ID` environment variable is set.

**`--client-secret <string>`**\
Client Secret obtained from the Identity Service. Skip, if `DAP_CLIENT_SECRET` environment variable is set.

**`-h, --help`**\
Displays help information for the command.

### Examples

Get schema of `courses` and `users` tables from the `canvas` namespace:\
`$ dap schema --namespace canvas --table courses,users`

Get schema of all tables from the `canvas` namespace:\
`$ dap schema --namespace canvas --table all`

### Related Resources

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Key Concepts</strong></td><td>Get familiar with the key concepts in DAP.</td><td><a href="../../key-concepts">key-concepts</a></td></tr><tr><td><strong>Rate Limits &#x26; Policies</strong></td><td>Learn more about the limits and our policies in DAP.</td><td><a href="../../limits-policies">limits-policies</a></td></tr><tr><td><strong>Datasets</strong></td><td>Discover the available namespaces and tables.</td><td><a href="../../dataset">dataset</a></td></tr></tbody></table>