CREATE TABLE table_204_250 (id NUMBER, "date" CLOB, "opponent#" CLOB, "rank#" CLOB, "site" CLOB, "result" CLOB, "attendance" NUMBER)

what site at most is taken place ?
SELECT "site" FROM table_204_250 GROUP BY "site" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "site" FROM "table_204_250" GROUP BY "site" ORDER BY COUNT(*) DESC FETCH FIRST 1 ROWS ONLY