Hi, I would like to vlookup on employees' degree start date, eg.:

A B C
emp. no. Start date Edu
1 01/01/90 Dip
1 01/01/95 Deg
2 01/01/82 Cert
2 01/01/86 Dip
2 01/01/90 Deg

How do I vlookup on the emp. no and deg start date?
Thanks in advance.