1Z0-184-25 practice question 10 of 15
Which operation is NOT permitted on tables containing VECTOR columns?
Full set: 60 questionsCorrect Answer:
D. JOIN ON VECTOR columns
Explanation
In Oracle 23ai, tables with VECTOR columns support standard DML operations: SELECT (A) retrieves data, UPDATE (B) modifies rows, and DELETE (C) removes rows. However, JOIN ON VECTOR columns
(D) is not permitted because VECTOR isn’t a relational type for equality comparison; it’s for similarity search (e.g., via VECTOR_DISTANCE). Joins must use non-VECTOR columns. Oracle’s SQL reference restricts VECTOR to specific operations, excluding direct joins.
Reference:Oracle Database 23ai SQL Language Reference, Section on VECTOR Restrictions.
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