1. Identify some of the objects that you would expect to find in an object-oriented database used to maintain records of a library’s holdings. What methods would you expect to find within each of...

1.
Identify some of the objects that you would expect to find in an object-oriented database used to maintain records of a library’s holdings. What methods would you expect to find within each of these objects?

2.
What incorrect information is generated by the following schedule of transactions T1 and T2? T1 is designed to compute the sum of accounts A and B; T2 is designed to transfer

$100 from account A to account B. T1 begins by retrieving the balance of account A; then, T2 performs its transfer; and finally, T1 retrieves the balance of account B and reports the sum of the values it has retrieved.