Discussion
Data manipulation language (DML) commands are used to define a database, including creating, altering, and dropping tables and establishing constraints.
Answer: B
Correct answer: False
The sentence describes DDL, the Data Definition Language, not DML. Creating, altering and dropping tables and establishing constraints are all structural operations.
DML works with the data inside those structures: SELECT, INSERT, UPDATE and DELETE. The distinction has a practical edge beyond terminology - in most engines DDL statements commit implicitly and cannot be rolled back, while DML statements participate in a transaction.
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