In Section 8.2 we provided an overview of Oracle9i DBMS. In this section, we focus on the security measures provided by Oracle. In the previous section we examined two types of security in Microsoft Office Access: system security and data security. In this section we examine how Oracle provides these two types of security. As with Office Access, one form of system security used by Oracle is the standard user name and password mechanism, whereby a user has to provide a valid user name and password before access can be gained to the database, although the responsibility to authenticate users can be devolved to the operating system. Figure 19.8 illustrates the creation of a new user called Beech with password authentication set. Whenever user Beech tries to connect to the database, this user will be presented with a Connect or Log On dialog box similar to the one illustrated in Figure 19.9, prompting for a user name and password to access the specified database