Name the total number of overall for defensive tackle
CREATE TABLE table_name_6 (
    overall VARCHAR,
    position VARCHAR
)
SELECT COUNT(overall) FROM table_name_6 WHERE position = "defensive tackle"
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: Name the total number of overall for defensive tackle ### Input: CREATE TABLE table_name_6 (
    overall VARCHAR,
    position VARCHAR
) ### Response: SELECT COUNT(overall) FROM table_name_6 WHERE position = "defensive tackle"