CREATE TABLE table_204_789 (id NUMBER, "plant name" CLOB, "location" CLOB, "country" CLOB, "startup date" NUMBER, "capacity  ( mmtpa ) " CLOB, "corporation" CLOB)

which plant was the first to open ?
SELECT "plant name" FROM table_204_789 ORDER BY "startup date" LIMIT 1
SELECT "plant name" FROM "table_204_789" ORDER BY "startup date" FETCH FIRST 1 ROWS ONLY