Which of the following statements is not true regarding

Which of the following concurrency control methods avoids deadlocks entirely but can reduce concurrency by blocking transactions at start?

Which interrupt is generated by software?

An SQL `VIEW` is a:

Given a relation R(A, B, C, D, E) and functional dependencies {A -> B, BC -> D, D -> E}. Which of the following is a candidate key for R?

Given the following Python-like code snippet: 

   ```python

    class Counter:

        def __init__(self):

In a relational schema, which normal form eliminates transitive dependencies (i.e., non-prime attribute depends on another non-prime attribute)?

Phantom Reads occur when:

Which operation is NOT part of relational algebra?