How many different release dates are there for the audio book with a story number 7?
CREATE TABLE table_20174050_1 (release_date VARCHAR, story__number VARCHAR)
SELECT COUNT(release_date) FROM table_20174050_1 WHERE story__number = 7
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_20174050_1 (release_date VARCHAR, story__number VARCHAR) Question: How many different release dates are there for the audio book with a story number 7? [/INST] SELECT COUNT(release_date) FROM table_20174050_1 WHERE story__number = 7 </s>