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_17429402_7 (school VARCHAR, last_occ_championship VARCHAR)
### Question:
How many schools won their last occ championship in 2006?
### Answer:
SELECT COUNT(school) FROM table_17429402_7 WHERE last_occ_championship = "2006"