How many different jockeys ran on 17 Feb 2007?
CREATE TABLE table_14981555_3 (jockey VARCHAR, date VARCHAR)
SELECT COUNT(jockey) FROM table_14981555_3 WHERE date = "17 Feb 2007"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_14981555_3 (jockey VARCHAR, date VARCHAR) Question: How many different jockeys ran on 17 Feb 2007? [/INST] SELECT COUNT(jockey) FROM table_14981555_3 WHERE date = "17 Feb 2007" </s>