# The `queryId` SPARQL Query Hint
<a name="sparql-query-hints-queryId"></a>

Use this query hint to assign your own queryId value to a SPARQL query.

Example:

```
PREFIX hint: <http://aws.amazon.com/neptune/vocab/v01/QueryHints#>
SELECT * WHERE {
  hint:Query hint:queryId "4d5c4fae-aa30-41cf-9e1f-91e6b7dd6f47"
  {?s ?p ?o}}
```

The value you assign must be unique across all queries in the Neptune DB.