How many opponents were there when the record was 6-0?
CREATE TABLE table_21197135_1 (date VARCHAR, record VARCHAR)
SELECT date FROM table_21197135_1 WHERE record = "6-0"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_21197135_1 (date VARCHAR, record VARCHAR) Question: How many opponents were there when the record was 6-0? [/INST] SELECT date FROM table_21197135_1 WHERE record = "6-0" </s>