List the codes of all courses that take place in room KLR209.
CREATE TABLE CLASS (class_code VARCHAR, class_room VARCHAR)
SELECT class_code FROM CLASS WHERE class_room = 'KLR209'
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE CLASS (class_code VARCHAR, class_room VARCHAR) Question: List the codes of all courses that take place in room KLR209. [/INST] SELECT class_code FROM CLASS WHERE class_room = 'KLR209' </s>