Asset Transformation

I’m trying to run the asset transformation. however, after creating the query I have this error.

An error occurred when running this query

"Verify that the 'Patricio1974.assets' relation exists | code: 400 | X-Request-ID: fe28e7d2-397d-9e68-bea4-a1c0979a4b4f"

Find below the query:

SELECT
  concat('Patricio1974:', loc) as externalId,
  IF(
    parent_loc = ''
    OR parent_loc IS NULL, '', concat('Patricio1974:', parent_loc)) AS parentExternalId,
  CAST(lastUpdatedTime AS STRING) AS name,
  to_metadata(*) AS metadata,
  description AS description,
  4577431473554653 AS dataSetId
FROM
  `Patricio1974`.assets