A family of Microsoft relational database management systems designed for ease of use.
This should be a fairly easy database. If the only requirement is to track the license and certs. it can be done with three tables.
tblEmployees
EmpID (PK Autonumber)
Firstname
LastName
other info about employees tht you need to capture.
tblCerts
CertID (PK Autonumber)
CertName
ExpirationPeriod
tblEmpCerts
EmpCertID (PK autonumber)
EmpID (FK)
CertID (FK
LastDateCertified
You would use a form to enter the data and a query to caluclate the Expire date byt adding the EXpirationPeriod to the LastDateCertified.