CREATE TABLE table_203_835 (id NUMBER, "season" CLOB, "club" CLOB, "country" CLOB, "competition" CLOB, "apps." NUMBER, "goals" NUMBER)

which competition occurred the most ?
SELECT "competition" FROM table_203_835 GROUP BY "competition" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "competition" FROM "table_203_835" GROUP BY "competition" ORDER BY COUNT(*) DESC FETCH FIRST 1 ROWS ONLY