How many regions are affected?
CREATE TABLE affected_region (
    region_id VARCHAR
)
SELECT COUNT(DISTINCT region_id) FROM affected_region
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 regions are affected? ### Input: CREATE TABLE affected_region (
    region_id VARCHAR
) ### Response: SELECT COUNT(DISTINCT region_id) FROM affected_region