To create a query based on two tables, the two tables must share a common ________

In the context of counter-controlled iteration, which of the following is not accomplished by the control-variable initialization statement? int c = 10;

a) Names the control variable. b) Defines the control variable to be an integer. c) Specifies the sentinel value. d) Sets the initial value of the control variable to 10.

A centralized global deadlock detector holds the union of local wait-for graphs. Give an example to explain how a phantom deadlock could be detected if a waiting transaction in a deadlock cycle aborts during the deadlock detection procedure.

What will be an ideal response?