Across
- 4. database schema is written in
- 5. An entity set that doesn't have a primary key
- 6. A table or attribute of a table in database
- 8. An entity set that has a primary key
- 9. 'as' clause is used in SQL for which operation?
- 10. Relational algebra
Down
- 1. Which of the following is another name for weak entity?
- 2. in an er diagram attributes are represented by
- 3. In an E-R diagram an entity set is represent by
- 7. Which operator is cartesian product in a relational algebra?