When was the Hamaoka-4 unit commercial operation date?
CREATE TABLE table_name_42 (commercial_operation VARCHAR, unit VARCHAR)
SELECT commercial_operation FROM table_name_42 WHERE unit = "hamaoka-4"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_42 (commercial_operation VARCHAR, unit VARCHAR) Question: When was the Hamaoka-4 unit commercial operation date? [/INST] SELECT commercial_operation FROM table_name_42 WHERE unit = "hamaoka-4" </s>