Question

a saved query cannot be run again at any time in future​

Answer 1

Answer:

A shared query provides the query text only. You still need to have appropriate access to query the data. One advantage of saving only the query text is for sharing. You can share a query that is incomplete, even if it isn't a valid query. Then others can use it as a template, which they can complete or customize.

Explanation:

The only query option retained by a saved query is the "SQL Version", which governs whether the query uses legacy SQL or standard SQL.

There are 3 types of saved queries:

Private: Private saved queries are visible only to the user who creates them.

Project-level: Project-level saved queries are visible to principals with the required permissions.

Public: Public saved queries are visible to anyone with a link to the query.