A primary key composed of multiple columns used to identify a record uniquely is called A. Multiple key B. Composite key C. Unlike key D. Foreign key Question 4 of 10 10. 0 Points Which one of the below is an example of One-to-One Relationship: A. Each student can have many subjects, and each subject is taken by many students B. A student has Just one lecture C. Each student can have many lecturers D. A lecturer can have many students Reset Selection Question 5 of 10 10. 0 Points Which one of the below is an example of Many to Many Relationship
A. Each author can write many books B. A book can have many authors C. An author can write many books and Each book can have many modules D. A book can be written by different authors and an author can write many books part 3 of 3 – ROADS &SQL Question 6 of 10 10. 0 Points A Primary key A. Uniquely identifies a column. B. Must always be composed of two or more columns. C. Uniquely identifies a row. D. Uniquely identifies a table. Question 7 of 10 10. 0 Points The DB’S language component which can be embedded in a program is A.
The data manipulation language (DAML).