CREATE TABLE table_203_398 (id NUMBER, "year" NUMBER, "vidhan sabha" CLOB, "members of legislative assembly" CLOB, "winning party" CLOB, "nearest contesting party" CLOB)

which party has won the most ?
SELECT "winning party" FROM table_203_398 GROUP BY "winning party" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "winning party" FROM "table_203_398" GROUP BY "winning party" ORDER BY COUNT(*) DESC FETCH FIRST 1 ROWS ONLY