Programming Challenge (challenging)

Greetings,
the challenge is:
connect oracle
make "mktgoptin" true of random 20% who are false and the condition: "last_purchase_v2" of table "newcustomers" (the format is the timestamp) is before 2010.
Kindly use Java for contest entries.
You have two hours. May the winner.

>>6
Chinese are evil. They invented gunpowder, leading to millions of people dead in wars. That also put an end to the noble art of sword fighting.