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ti-chi-bot merged 2 commits into from
Jul 14, 2026
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lake: improve CREATE DATABASE storage example, update a diagram #23255

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lake: improve CREATE DATABASE storage example, update a diagram
lilin90 Jul 13, 2026
c46a82f
Update create-database.md
lilin90 Jul 13, 2026
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14 changes: 12 additions & 2 deletions tidb-cloud-lake/sql/create-database.md
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Expand Up @@ -39,19 +39,29 @@ To create a database, the user performing the operation or the [current_role](/t

## Examples

### Creating a Basic Database
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lilin90 marked this conversation as resolved.

The following example creates a database named `test`:

```sql
CREATE DATABASE test;
```

The following example creates a database with a default storage connection and path:
### Creating a Database with a Default Storage Connection
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lilin90 marked this conversation as resolved.

The following example creates a connection using an AWS IAM role and then creates a database that uses this connection as its default storage. Using an IAM role is more secure than access keys because it doesn't require storing credentials in {{{ .lake }}}.

```sql
CREATE CONNECTION my_s3 STORAGE_TYPE = 's3' ACCESS_KEY_ID = '<key>' SECRET_ACCESS_KEY = '<secret>';
CREATE CONNECTION my_s3
STORAGE_TYPE = 's3'
ROLE_ARN = 'arn:aws:iam::987654321987:role/lake-test';

CREATE DATABASE analytics OPTIONS (
DEFAULT_STORAGE_CONNECTION = 'my_s3',
DEFAULT_STORAGE_PATH = 's3://mybucket/analytics/'
);
```

> **Note:**
>
> To use IAM roles with {{{ .lake }}}, you need to set up a trust relationship between your AWS account and {{{ .lake }}}. See [Authenticate with AWS IAM Role](/tidb-cloud-lake/guides/authenticate-with-aws-iam-role.md) for detailed instructions.