Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_45 ( outcome VARCHAR, surface VARCHAR, date VARCHAR )

### Question ###
what is the outcome when the surface is grass on 23 june 1997?

### Accurate SQL ###

SELECT outcome FROM table_name_45 WHERE surface = "grass" AND date = "23 june 1997"