UPDATE
  taChangeRequest
SET
  ChangeRequestName = @aChangeRequestName,
  ChangeRequestDescription = @aChangeRequestDescription,
  BusinessBenefit = @aBusinessBenefit,
  Outcome = @aOutcome,
  RequestedByID = @nRequestedByID,
  @pCreatedByID
  @pCreateDate
  LastChangeDate = NOW(),
  ChangeRequestCategoryID = @nChangeRequestCategoryID,
  ChangeRequestStatusID = @aChangeRequestStatusID,
  Priority = @nPriority,
  Estimate = @nEstimate,
  IsBugFix = @nIsBugFix,
  ActualHours = @aActualHours
WHERE
  ChangeRequestID = @nChangeRequestID