Explanation:
MERGE, UPDATE and DELETE commands are data manipulation language (DML) statements.
Incorrect Answers:
1: COMMIT is not a DML command.
5: CREATE is a data definition language (DDL) command.
6: DROP is a data definition language (DDL) command.
OCP Introduction to Oracle 9i: SQL Exam Guide, Jason Couchman, p. 267-279
Chapter 6: Manipulating Oracle Data

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