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_21685 ( "School" text, "Years of Participation" text, "OCC Championships" real, "Last OCC Championship" text, "Last Outright OCC Championship" text )

### Question ###
What are the years of participation for pickerington north?

### Accurate SQL ###

SELECT "Years of Participation" FROM table_21685 WHERE "School" = 'Pickerington North'