Name the number of constr with the first win at the 1978 brazilian grand prix
CREATE TABLE table_12707313_2 (constr VARCHAR, first_win VARCHAR)
SELECT COUNT(constr) FROM table_12707313_2 WHERE first_win = "1978 Brazilian Grand Prix"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_12707313_2 (constr VARCHAR, first_win VARCHAR) Question: Name the number of constr with the first win at the 1978 brazilian grand prix [/INST] SELECT COUNT(constr) FROM table_12707313_2 WHERE first_win = "1978 Brazilian Grand Prix" </s>