Name the length for all class and date of march 18
CREATE TABLE table_5062 (
    "Race" text,
    "Length" text,
    "Class" text,
    "Circuit" text,
    "Date" text
)
SELECT "Length" FROM table_5062 WHERE "Class" = 'all' AND "Date" = 'march 18'
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 length for all class and date of march 18 ### Input: CREATE TABLE table_5062 (
    "Race" text,
    "Length" text,
    "Class" text,
    "Circuit" text,
    "Date" text
) ### Response: SELECT "Length" FROM table_5062 WHERE "Class" = 'all' AND "Date" = 'march 18'