# QueryId (/docs/core/reference/api/interfaces/QueryId)



[@kysoql/core](/docs/core/reference/api) / QueryId

Identifies a single query transformation/execution lifecycle.

## Properties [#properties]

| Property                                  | Modifier   | Type     | Description                                     |
| ----------------------------------------- | ---------- | -------- | ----------------------------------------------- |
| <a id="api-property-queryid" /> `queryId` | `readonly` | `string` | Opaque numeric identifier for a query instance. |