Oracle Exam 1Z0-082 Topic 13 Question 54 Discussion

Actual exam question for Oracle's 1Z0-082 exam

Question #: 54
Topic #: 13

Which three statements are true about dropping and unused columns in an Oracle database? (Choose three.)

AA primary key column referenced by another column as a foreign key can be dropped if using the CASCADE option.

BAn UNUSED column's space is reclaimed automatically when the block containing that column is next queried.

CAn UNUSED column's space is reclaimed automatically when the row containing that column is next queried.

DPartition key columns cannot be dropped.

EA DROP COLUMN command can be rolled back

FA column that is set to UNUSED still counts towards the limit of 1000 columns per table

Show Suggested Answer

Suggested Answer: A, D, F

by Mitsue at May 05, 2022, 03:17 PM

Limited Time Offer

25%

Off

Contribute your Thoughts:

Submit Cancel

Currently there are no comments in this discussion, be the first to comment!