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_10361230_1 (round INTEGER, position VARCHAR)

### Question ###
Where does the defensive back position appear first?

### Accurate SQL ###

SELECT MIN(round) FROM table_10361230_1 WHERE position = "Defensive Back"