CREATE TABLE table_203_88 (id NUMBER, "language" CLOB, "number" NUMBER, "percentage  ( % ) " NUMBER, "males" NUMBER, "females" NUMBER)

what is the highest percentage of speakers other than polish ?
SELECT "language" FROM table_203_88 WHERE "language" <> 'polish' ORDER BY "percentage (%)" DESC LIMIT 1
SELECT "language" FROM "table_203_88" WHERE "language" <> 'polish' ORDER BY "percentage (%)" DESC FETCH FIRST 1 ROWS ONLY