What is the least silver that has mexico as a nation and a gold less than 0?
CREATE TABLE table_name_69 (
    silver INTEGER,
    nation VARCHAR,
    gold VARCHAR
)
SELECT MIN(silver) FROM table_name_69 WHERE nation = "mexico" AND gold < 0
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: What is the least silver that has mexico as a nation and a gold less than 0? ### Input: CREATE TABLE table_name_69 (
    silver INTEGER,
    nation VARCHAR,
    gold VARCHAR
) ### Response: SELECT MIN(silver) FROM table_name_69 WHERE nation = "mexico" AND gold < 0