CREATE TABLE table_203_412 (id DECIMAL, "school" TEXT, "conference" TEXT, "record  ( conference ) " TEXT, "head coach" TEXT, "cws appearances" TEXT, "cws best finish" TEXT, "cws record" TEXT)

which school has no cws appearances ?
SELECT "school" FROM table_203_412 WHERE "cws appearances" = 0
SELECT "school" FROM "table_203_412" WHERE "cws appearances" = 0