CREATE TABLE SV_MERITO(SV char(16) NOT NULL PRIMARY KEY,Mese char(6) NOT NULL Primary key,GRUPPO char(6) NOT NULL PRIMARY KEY)

/* Output:

Msg 8110, Level 16, State 0, Line 3
Cannot add multiple PRIMARY KEY constraints to table 'SV_MERITO'.
Msg 8110, Level 16, State 0, Line 3
Cannot add multiple PRIMARY KEY constraints to table 'SV_MERITO'.

*/