How many players had overall 78?
CREATE TABLE table_17212 (
    "Round" real,
    "Overall" text,
    "Player" text,
    "Position" text,
    "Nationality" text,
    "Club team" text
)
SELECT COUNT("Player") FROM table_17212 WHERE "Overall" = '78'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many players had overall 78? ### Input: CREATE TABLE table_17212 (
    "Round" real,
    "Overall" text,
    "Player" text,
    "Position" text,
    "Nationality" text,
    "Club team" text
) ### Response: SELECT COUNT("Player") FROM table_17212 WHERE "Overall" = '78'