Which Opened has a Category of diesel light rail?
CREATE TABLE table_name_3 (opened INTEGER, category VARCHAR)
SELECT MAX(opened) FROM table_name_3 WHERE category = "diesel light rail"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_3 (opened INTEGER, category VARCHAR) Question: Which Opened has a Category of diesel light rail? [/INST] SELECT MAX(opened) FROM table_name_3 WHERE category = "diesel light rail" </s>