Question 2 Suppose a database system crashes again while recovering from a previous crash. Assume checkpointing is not done by the database either during the transactions […]
Question 48 Match the pairs in the following questions: (a) Secondary index (p) Function dependency (b) Non-procedural query language (q) B-tree (c) Closure of a set […]
Question 9 Given the relations employee (name, salary, deptno) and department (deptno, deptname, address) Which of the following queries cannot be expressed using the basic relational […]