Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_19630743_2 (no INTEGER, tournament VARCHAR)
### Question:
What is the minimum number of the bmw championship tournament.
### Answer:
SELECT MIN(no) FROM table_19630743_2 WHERE tournament = "BMW Championship"