The query specifying the SQL view is said to be updatable if it meets which of the following conditions?
A. select clause contains relation attribute names but not have expressions, aggregates, or distinct specification
B. from clause has 1 relation
C. query does not have group by or having clause
D. All of the mentioned
Answer:D
The query specifying the SQL view is said to be updatable if it meets which of the following conditions?
A. select clause contains relation attribute names but not have expressions, aggregates, or distinct specification B. from clause has 1 relation C. query does not have group by or having clause D. All of the mentioned