For each file format, return the number of artists who released songs in that format.
CREATE TABLE files (formats VARCHAR)
SELECT COUNT(*), formats FROM files GROUP BY formats
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE files (formats VARCHAR) Question: For each file format, return the number of artists who released songs in that format. [/INST] SELECT COUNT(*), formats FROM files GROUP BY formats </s>