# DatabaseInstanceLookupOptions

Properties for looking up an existing DatabaseInstance.

- Source: [`aws-rds/lib/instance.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0/packages/aws-cdk-lib/aws-rds/lib/instance.ts#L1291)
- Type last changed: v2.190.0 · 17 Apr 2025

## Example

```ts
declare const myUserRole: iam.Role;

const dbFromLookup = rds.DatabaseInstance.fromLookup(this, 'dbFromLookup', {
  instanceIdentifier: 'instanceId',
});

// Grant a connection
dbFromLookup.grantConnect(myUserRole, 'my-user-id');
```

## Properties

- `instanceIdentifier`: string (required) — The instance identifier of the DatabaseInstance.