Using online documentation, find out about data types used in MS Access 2010, Oracle 11g, and MySQL 5.0. Study two data types modeling issues in these three DBMS:

1. Compare and contrast the methods for creating an automatic unique identifiers in each DBMS. Put your answer in a short point/paragraph/table format. List references (at least one source).

2. Compare and contrast the storage of date, time, and time zone. Specify the data types for storing date, time, and time zone in each DBMS. How dates are stored internally in each DBMS? What is the maximum range for dates? Prepare your answer in a table format. List references (at least one source).