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INSERT INTO Enrollments (EnrollmentID, StudentID, CourseID, EnrollmentDate) VALUES (1, 10, 101, '2023-09-05');Group of answer choicesReferential integrity constraintKey constraintEntity integrity constraintNo Violation

Question

INSERT INTO Enrollments (EnrollmentID, StudentID, CourseID, EnrollmentDate) VALUES (1, 10, 101, '2023-09-05');Group of answer choicesReferential integrity constraintKey constraintEntity integrity constraintNo Violation

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Solution

This statement appears to be a SQL command to insert a new record into the "Enrollments" table. The potential violations could be:

  1. Referential integrity constraint: This would occur if the StudentID or CourseID being inserted does not exist in their respective tables. The database needs to ensure that these IDs have corresponding records in the Student and Course tables.

  2. Key constraint: This would occur if the EnrollmentID being inserted already exists in the Enrollments table. Each EnrollmentID should be unique, and if there is already a record with the same ID, it would violate the key constraint.

  3. Entity integrity constraint: This would occur if any of the values being inserted are null where they shouldn't be. In this case, all the values are provided so this constraint is not violated.

Without more information about the existing data in the database, it's impossible to definitively say which, if any, of these constraints are violated by this command.

This problem has been solved

Similar Questions

INSERT INTO Courses (CourseID, CourseName, Credits, InstructorID) VALUES (101, NULL, 3, 1);Group of answer choicesEntity integrity constraintReferential integrity constraintKey constraintNo Violation

UPDATE Enrollments SET StudentID = 10, CourseID = 999 WHERE EnrollmentID = 1;Group of answer choicesNo ViolationReferential integrity constraintKey constraintEntity integrity constraint

DELETE FROM Enrollments WHERE CourseID EnrollmentID= 5;Group of answer choicesKey constraintReferential integrity constraintNo ViolationEntity integrity constraint

UPDATE Courses SET InstructorID = 1WHERE CourseID = 102;Group of answer choicesEntity integrity constraintKey constraintNo ViolationReferential integrity constraint

The tables above show information on a school database. The questions below will test your understanding of the violations of constraints. Check all the constraints that the operations below violate. Flag question: Question 6Question 6Tips2 ptsUPDATE Enrollments SET StudentID = 10, CourseID = 999 WHERE EnrollmentID = 1;Group of answer choicesKey constraintEntity integrity constraintReferential integrity constraintNo Violation

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