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_87 (tournament VARCHAR, date VARCHAR)

### Question ###
What tournament took place on 7 Aug 2011?

### Accurate SQL ###

SELECT tournament FROM table_name_87 WHERE date = "7 aug 2011"