CREATE TABLE table_204_276 (id NUMBER, "record" CLOB, "date" CLOB, "result" CLOB, "opponent" CLOB, "location" CLOB, "method" CLOB, "round" NUMBER)

on which date was the match with the smallest number of rounds ?
SELECT "date" FROM table_204_276 ORDER BY "round" LIMIT 1
SELECT "date" FROM "table_204_276" ORDER BY "round" FETCH FIRST 1 ROWS ONLY