select * from employee
inner join position on position.PositionID = employee.position
inner join agencies on agencies.AgenciesID = employee.Agencies
inner join party on party.PartyID = employee.party
inner join typepersonnel on typepersonnel.TypePersonnelID = employee.typePersonnel
select * from employee
left join position on position.PositionID = employee.position
left join agencies on agencies.AgenciesID = employee.Agencies
left join party on party.PartyID = employee.party
left join typepersonnel on typepersonnel.TypePersonnelID = employee.typePersonnel