Which two are true regarding external tables? (Choose two.)
A. External tables are read-only tables.
B. External tables can be updated.
C. Indexes cannot be created on external tables.
D. Indexes can be created on external tables.
Answer:A
Which two are true regarding external tables? (Choose two.)
A. External tables are read-only tables. B. External tables can be updated. C. Indexes cannot be created on external tables. D. Indexes can be created on external tables.