CREATE TABLE table_58384 ("Ship" CLOB, "Pennant number" CLOB, "Laid down" CLOB, "Launched" CLOB, "Completed" CLOB)

When is the completed date of the destroyer with a pennant number h59?
SELECT "Completed" FROM table_58384 WHERE "Pennant number" = 'h59'
SELECT "Completed" FROM "table_58384" WHERE "Pennant number" = 'h59'