Q8.
Subqueries cannot:
Q9.
The relation employee(ID,name,street,Credit,street,city,salary) is decomposed into employee1 (ID, name) employee2 (name, street, city, salary)
Q10.
Inst_dept (ID, name, salary, dept name, building, budget) is decomposed into instructor (ID, name, dept name, salary) department (dept name, building, budget)
Q13.
A dependency exist between two columns when
Q18.
Which of the following queries are legal?