5.1

Consider the following relations for a company database: * emp(ename, dname, salary) * mgr(ename,mname)

and the Java code in Figure 5.20, which uses the JDBC API. Assume that the userid, password, machine name, etc. are all okay. Descrie in concise English what the Java program does. (That is, produce an English sentence like “It finds the manager of the toy department,” not a line-by-line description of what each Java statement does.)

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It prints out the manager of “dog”, that manager’s manager, etc., until we reach a manager who has no manager (presumably, the CEO, who most certainly is a cat). Note: If you try to run this, use your own Oracle ID and password.