3-2. Create two tables, TI(ename, jobno) and T2jobno, jobdesc). Let jobno be data-type, NUMBERa), and use appropriate data-types for the other attributes. Put three rows in TI and two rows in T2. Give TI jobno values 100, 200, 300 for the three rows: 100,..., 200, . , 300s, where represents any value you choose. Give T2,jobno the values 100,200: c100,. ,200..> a. How many rows are there in the equi-join (on jobno) of Tl and T2? b. If the values of T2 jobno were -200200, (with different jobdesc values), how many rows would you expect and why? Why would the rows have to have different descriptions? If the values of T2Jobno were 400, 500 as in400, >,, how many rows would you expect to get? 100 100 100> (different names) and the with different descriptions, how many rows d. If the values of T) jobno were values of T2.jobno were