Google Looker LookML Developer Exam LookML-Developer Question # 9 Topic 1 Discussion

Google Looker LookML Developer Exam LookML-Developer Question # 9 Topic 1 Discussion

LookML-Developer Exam Topic 1 Question 9 Discussion:
Question #: 9
Topic #: 1

A developer creates a derived table and wants to add persistence to it. Because the table is not used on a frequent basis, the developer wants thetable to be cached for 12 hours, but only when a user has queried it.

Which persistence parameter should be added to the derived table’s definition in order to satisfy this use case?


A.

persist_with: “12 hours”


B.

datagroup: 12_hours {

max_cache_age: “12 hours”

}


C.

persist_for: “12 hours”


D.

sql_trigger_value: SELECT FLOOR{UNIX_TIMESTAMP{} / {6*60*60}} ;;


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