What are the least losses of Warrnambool with more than 6 wins and less than 630 against?
CREATE TABLE table_name_18 (losses INTEGER, wins VARCHAR, against VARCHAR, club VARCHAR)
SELECT MIN(losses) FROM table_name_18 WHERE against < 630 AND club = "warrnambool" AND wins > 6
### Context: CREATE TABLE table_name_18 (losses INTEGER, wins VARCHAR, against VARCHAR, club VARCHAR) ### Question: What are the least losses of Warrnambool with more than 6 wins and less than 630 against? ### Answer: SELECT MIN(losses) FROM table_name_18 WHERE against < 630 AND club = "warrnambool" AND wins > 6