[Qgis-user] Join Table

[labiancamarilena at libero.it]

Dear all,
I have a problem.
I should join a shapefile that contains code and name of the italian provinces 
with a sheet (excel) containing code for each province and name with 
corresponding indicators.
I used "Join" and I tried to combine the shapefile already exists with 
indicators but the values aren't assigned to corresponding of each province.
I want to ask what could be the reason why the values ​​are not united?
Thanks
Marilena