Which Opponent has a Surface of hard on 28 august 1993?
CREATE TABLE table_name_46 (opponent VARCHAR, surface VARCHAR, date VARCHAR)
SELECT opponent FROM table_name_46 WHERE surface = "hard" AND date = "28 august 1993"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_46 (opponent VARCHAR, surface VARCHAR, date VARCHAR) Question: Which Opponent has a Surface of hard on 28 august 1993? [/INST] SELECT opponent FROM table_name_46 WHERE surface = "hard" AND date = "28 august 1993" </s>