If you have access to Oracle Database XE, search its help system to answer the following questions. A. How does Oracle Database XE use read locks and write locks? B. What, if any, levels of...

If you have access to Oracle Database XE, search its help system to answer the

following questions.

A. How does Oracle Database XE use read locks and write locks?

B. What, if any, levels of transaction isolation are available in Oracle Database XE?

C. How does the security model for Oracle Database XE differ from that shown

in Figure 6-16?

D. Summarize the backup capabilities of Oracle Database XE.

E. Summarize the recovery capabilities of Oracle Database XE.