CREATE TABLE table_203_2 (id NUMBER, "name" CLOB, "mineral" CLOB, "opened" CLOB, "closed" CLOB, "years connected" CLOB, "notes" CLOB)

which quarry was the last to open ?
SELECT "name" FROM table_203_2 ORDER BY "opened" DESC LIMIT 1
SELECT "name" FROM "table_203_2" ORDER BY "opened" DESC FETCH FIRST 1 ROWS ONLY