Oracle
1Z0-514 · Question #21
You have to create a table, STUDENTS, with the columns: STUDENT_ID, STUDENT_NAME, DATE_OF_BIRTH, and COURSE_ID. The following constraints have to be enforced on this table: - Each student must be…
The correct answer is B. foreign key constraint on the COURSE_ID column C. check constraint on the DATE_OF_BIRTH column F. primary key constraint on the STUDENT_ID columns. See the full explanation below for the reasoning.
Question
You have to create a table, STUDENTS, with the columns:
STUDENT_ID, STUDENT_NAME, DATE_OF_BIRTH, and COURSE_ID. The following constraints have to be enforced on this table:
- Each student must be uniquely identifiable by the STUDENT_ID.
- The STUDENT_ID columns should not be left blank.
- The student should not be less than 15 years of age.
- The student can only take a course that is specified in the COURSE
table in the database. Which three constraints must be explicitly enforced on the table? (Choose three)
Options
- Acheck constraint on the COURSE_ID column
- Bforeign key constraint on the COURSE_ID column
- Ccheck constraint on the DATE_OF_BIRTH column
- Dunique key constraint on the STUDENT_ID column
- Enot null constraint on the DATE_OF_BIRTH column
- Fprimary key constraint on the STUDENT_ID columns
How the community answered
(48 responses)- A15% (7)
- B75% (36)
- D4% (2)
- E6% (3)
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