select TC.table_name , TC.column_name ,C.constraint_type c.constraint_name
from USER_TAB_COLUMNS TC,USER_CONS_COLUMNS CC ,user_constraints C
where TC.table_name = 'TABLE1'
and TC.table_name = CC.table_name(+)
and TC.column_name = CC.column_name (+)
and CC.constraint_name = C.constraint_name(+)
and c.constraint_type = 'P';
