Which of the following statements is TRUE about the schemas? (Choose all correct answer) A. A schema is a collection of database objects that belong to the same tablespace. B. A schema is a collection of database objects that are owned by a particular user. C. A role is a schema object. D. An index is a schema object.
Question
Which of the following statements is TRUE about the schemas? (Choose all correct answer) A. A schema is a collection of database objects that belong to the same tablespace. B. A schema is a collection of database objects that are owned by a particular user. C. A role is a schema object. D. An index is a schema object.
Solution
The correct statements about schemas are:
B. A schema is a collection of database objects that are owned by a particular user. This is true because a schema in a database is defined as a collection of database objects, including tables, views, indexes, and procedures, that are logically grouped together. The owner of these objects is usually the user who created them.
D. An index is a schema object. This is also true because an index is a database object and it is part of a schema. An index is used to speed up the retrieval of rows by using a pointer. It can be created or dropped as needed and it belongs to a schema in a database.
Therefore, options B and D are correct.
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