Across
- 3. which predicate is used to check for null values ?
- 4. Which keyword is inserted after SELECT to force the elimination of duplicates?
- 8. Which kind of user forms request in Database query language?
Down
- 1. an association among entities
- 2. one of the string operations supported by SQL
- 5. a clause that corresponds to the projection operation of relational algebra
- 6. at which level application programs hide details of data types?
- 7. The SQL allows renaming relations and attributes using which cause?