On what date did the opponent in the Toshiaki Sakai final play on a grass surface?
CREATE TABLE table_name_99 (date VARCHAR, opponent_in_the_final VARCHAR, surface VARCHAR)
SELECT date FROM table_name_99 WHERE opponent_in_the_final = "toshiaki sakai" AND surface = "grass"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_99 (date VARCHAR, opponent_in_the_final VARCHAR, surface VARCHAR) Question: On what date did the opponent in the Toshiaki Sakai final play on a grass surface? [/INST] SELECT date FROM table_name_99 WHERE opponent_in_the_final = "toshiaki sakai" AND surface = "grass" </s>