CREATE TABLE table_204_258 (id NUMBER, "location" CLOB, "frequency" NUMBER, "call sign" CLOB, "network" CLOB, "call sign meaning" CLOB)

what is the last frequency on the chart ?
SELECT "frequency" FROM table_204_258 ORDER BY id DESC LIMIT 1
SELECT "frequency" FROM "table_204_258" ORDER BY "id" DESC FETCH FIRST 1 ROWS ONLY