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_15475116_1 ( league VARCHAR, nickname VARCHAR )

### Question ###
What league does the team with the nickname Cavaliers belong to

### Accurate SQL ###

SELECT league FROM table_15475116_1 WHERE nickname = "Cavaliers"