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_18183850_12 (outcome VARCHAR, opponent VARCHAR)

### Question ###
How many outcomes were there when the opponent was Aleksandra Wozniak?

### Accurate SQL ###

SELECT COUNT(outcome) FROM table_18183850_12 WHERE opponent = "Aleksandra Wozniak"