UPDATE UPDATE UPDATE UPDATE

The third line here is what's killing it.  The update.

ALTER TABLE BUSINESSREQUESTSUMMARY ADD AVERAGERESPONSETIME_
NUMERIC(8,0);
 ALTER TABLE BUSINESSREQUESTSUMMARY ADD LOWESTRESPONSETIME_
NUMERIC(8,0);
 ALTER TABLE BUSINESSREQUESTSUMMARY ADD HIGHESTRESPONSETIME_
NUMERIC(8,0);
 UPDATE BUSINESSREQUESTSUMMARY SET
AVERAGERESPONSETIME_=AVERAGERESPONSETIME,
LOWESTRESPONSETIME_=LOWESTRESPONSETIME,
HIGHESTRESPONSETIME_=HIGHESTRESPONSETIME;

Does that help?