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_22993636_2 (sec_wins VARCHAR, overall_record VARCHAR)

### Question ###
How many different SEC Win counts does the team with an overall record of 30-4 have?

### Accurate SQL ###

SELECT COUNT(sec_wins) FROM table_22993636_2 WHERE overall_record = "30-4"