From the trip record, find the number of unique bikes.
CREATE TABLE trip (bike_id VARCHAR)
SELECT COUNT(DISTINCT bike_id) FROM trip
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE trip (bike_id VARCHAR) Question: From the trip record, find the number of unique bikes. [/INST] SELECT COUNT(DISTINCT bike_id) FROM trip </s>