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Consider the following SQL table definition:
CREATE TABLE Students (
StudentID INT PRIMARY KEY,
StudentName VARCHAR(50),
Age INT NOT NULL
);
Which of the following SQL statements adds a foreign key constraint to the "DepartmentID" column referencing the "Department" table?
  • a)
    ALTER TABLE Students ADD CONSTRAINT FK_Students_Department FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);
  • b)
    ALTER TABLE Students ADD FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);
  • c)
    ALTER TABLE Students MODIFY FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);
  • d)
    ALTER TABLE Students CONSTRAINT FK_Students_Department FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);Output: No output.
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Consider the following SQL table definition:CREATE TABLE Students (Stu...
The ALTER TABLE statement is used to modify an existing table. To add a foreign key constraint to the "DepartmentID" column, the correct syntax is to use the CONSTRAINT keyword followed by the constraint name (e.g., FK_Students_Department), the FOREIGN KEY keyword, and the REFERENCES keyword to specify the referenced table and column.
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Consider the following SQL table definition:CREATE TABLE Students (StudentID INT PRIMARY KEY,StudentName VARCHAR(50),Age INT NOT NULL);Which of the following SQL statements adds a foreign key constraint to the "DepartmentID" column referencing the "Department" table?a)ALTER TABLE Students ADD CONSTRAINT FK_Students_Department FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);b)ALTER TABLE Students ADD FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);c)ALTER TABLE Students MODIFY FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);d)ALTER TABLE Students CONSTRAINT FK_Students_Department FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);Output: No output.Correct answer is option 'A'. Can you explain this answer?
Question Description
Consider the following SQL table definition:CREATE TABLE Students (StudentID INT PRIMARY KEY,StudentName VARCHAR(50),Age INT NOT NULL);Which of the following SQL statements adds a foreign key constraint to the "DepartmentID" column referencing the "Department" table?a)ALTER TABLE Students ADD CONSTRAINT FK_Students_Department FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);b)ALTER TABLE Students ADD FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);c)ALTER TABLE Students MODIFY FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);d)ALTER TABLE Students CONSTRAINT FK_Students_Department FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);Output: No output.Correct answer is option 'A'. Can you explain this answer? for Software Development 2025 is part of Software Development preparation. The Question and answers have been prepared according to the Software Development exam syllabus. Information about Consider the following SQL table definition:CREATE TABLE Students (StudentID INT PRIMARY KEY,StudentName VARCHAR(50),Age INT NOT NULL);Which of the following SQL statements adds a foreign key constraint to the "DepartmentID" column referencing the "Department" table?a)ALTER TABLE Students ADD CONSTRAINT FK_Students_Department FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);b)ALTER TABLE Students ADD FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);c)ALTER TABLE Students MODIFY FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);d)ALTER TABLE Students CONSTRAINT FK_Students_Department FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);Output: No output.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Software Development 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following SQL table definition:CREATE TABLE Students (StudentID INT PRIMARY KEY,StudentName VARCHAR(50),Age INT NOT NULL);Which of the following SQL statements adds a foreign key constraint to the "DepartmentID" column referencing the "Department" table?a)ALTER TABLE Students ADD CONSTRAINT FK_Students_Department FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);b)ALTER TABLE Students ADD FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);c)ALTER TABLE Students MODIFY FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);d)ALTER TABLE Students CONSTRAINT FK_Students_Department FOREIGN KEY (DepartmentID) REFERENCES Department(DepartmentID);Output: No output.Correct answer is option 'A'. Can you explain this answer?.
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