Which of the following statements about COMMIT and ROLLBACKcommands is incorrect?
A.
All DML commands (INSERT, UPDATE, DELETE) are explicitlycommitted and cannot be rolled back.
B.
All DDL commands (CREATE, TRUNCATE, ALTER TABLE) are explicitlycommitted and cannot be rolled back.
C.
A ROLLBACK command will reverse all DDL operations performedsince the last COMMIT was performed.
D.
all of the above
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