How many opponents did they play on 17/05/2009?
CREATE TABLE table_21378160_2 (opponent VARCHAR, date VARCHAR)
SELECT COUNT(opponent) FROM table_21378160_2 WHERE date = "17/05/2009"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_21378160_2 (opponent VARCHAR, date VARCHAR) Question: How many opponents did they play on 17/05/2009? [/INST] SELECT COUNT(opponent) FROM table_21378160_2 WHERE date = "17/05/2009" </s>