Question : Which one of the following statements is false?
Option 1: The data dictionary is normally maintained by the database administrator
Option 2: Data elements in the database can be modified by changing the data dictionary.
Option 3: The data dictionary contains the name and description of each data element
Option 4: The data dictionary is a tool used exclusively by the database administrator
Correct Answer: Data elements in the database can be modified by changing the data dictionary.
Solution : Users should not change or remove any data from any data dictionary table. In order to confirm that schema objects are there and that users have the appropriate access to them, Oracle reads the data dictionary while the database is in use.
Hence the correct answer is option 2.
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