How many appointment dates were recorded when J rgen Kohler was the replaced by?
CREATE TABLE table_17085981_2 (
    date_of_appointment VARCHAR,
    replaced_by VARCHAR
)
SELECT COUNT(date_of_appointment) FROM table_17085981_2 WHERE replaced_by = "Jürgen Kohler"
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 appointment dates were recorded when J rgen Kohler was the replaced by? ### Input: CREATE TABLE table_17085981_2 (
    date_of_appointment VARCHAR,
    replaced_by VARCHAR
) ### Response: SELECT COUNT(date_of_appointment) FROM table_17085981_2 WHERE replaced_by = "Jürgen Kohler"