CREATE TABLE table_64246 ("School" CLOB, "Location" CLOB, "Mascot" CLOB, "Enrollment" FLOAT, "IHSAA Class" CLOB, "County" CLOB, "Year Joined" FLOAT, "Previous Conference" CLOB)

What kind of IHSAA Class has a School of decatur central?
SELECT "IHSAA Class" FROM table_64246 WHERE "School" = 'decatur central'
SELECT "IHSAA Class" FROM "table_64246" WHERE "School" = 'decatur central'