CREATE TABLE table_1692 ("Province" TEXT, "Provincial capital" TEXT, "Largest city" TEXT, "Area  ( km 2  ) " FLOAT, "Population  ( 2013 ) " FLOAT)

what is the number of provincial captial where the province is northern cape?
SELECT COUNT("Provincial capital") FROM table_1692 WHERE "Province" = 'Northern Cape'
SELECT COUNT("Provincial capital") FROM "table_1692" WHERE "Province" = 'Northern Cape'