# Query Player Data > Query player data using an existing index. Query player data. If no index is available to fulfil the query then the query will fail. Authentication Required: `Yes` ```bash ugs cloud-save data player query [options] ``` ## Arguments `` A string representing the visibility of the index. Must be one of `default`, `public` or `protected`. `` The index query in JSON. If this is a file path, the content of the file is used; otherwise, the raw string is used. Sample Query String `--body "{"fields":\[{"key":"EXAMPLE_KEY","value":"example_value","op":"EQ","asc":true}],"returnKeys":\["EXAMPLE_KEY"],"offset":0,"limit":100,"sampleSize":100}"` Sample Query Body ```json { "fields": [ { "key": "EXAMPLE_KEY", "value": "example_value", "op": "EQ", "asc": true } ], "returnKeys": [ "EXAMPLE_KEY" ], "offset": 0, "limit": 100, "sampleSize": 100 } ``` ## Documentation For more documentation on querying indexes, see the [Unity Service API Docs](https://services.docs.unity.com/cloud-save-admin/v1/index.html#tag/Data/operation/queryDefaultPlayerData). ## Options | Option | Alias | Description | | ---------------- | ---------------------- | ----------------------------------- | | project-id | -p, --project-id | The Unity cloud project ID. | | environment-name | -e, --environment-name | The services environment name. | | help | -?, -h, --help | Display help and usage information. | | quiet | -q, --quiet | Reduce logging to a minimum. | | json | -j, --json | Use JSON as the output format. |