Looking ROQL query for Service Category object using rest API

Summary

Looking ROQL query for Service Category object using rest API

Content

Using URL - "https://cloroxconnections.custhelp.com/services/rest/connect/v1.3/serviceCategories"  (But getting few columns)

Using REST API - https://mysite.example.com/services/rest/connect/v1.3/queryResults/
?query=select *  from serviceCategories; 

Here in getting error like 

"

{
    "type": "https://yyy.com/services/rest/connect/exceptions/OSC-CREST-00013",
    "title": "Unrecognized resource",
    "status": 404,
    "detail": "Unrecognized resource:  ",
    "instance": "https://yyy.com/services/rest/connect/v1.3/queryResults/ ?query=select *  from serviceCategories;",
    "o:errorCode": "OSC-CREST-00013"
}"

Here referred this link from  "https://docs.oracle.com/en/cloud/saas/service/18c/cxsvc/c_osvc_roql_object_queries.html&quot