assert((initialYTD + paymentAmount) == districts.fetchRow(0).getDouble("D_YTD"));
voltQueueSQL(getCustomers);
VoltTable customersX = voltExecuteSQL()[0];
assert(4 == customersX.getRowCount());
assert((C_ID + 1) == customersX.fetchRow(1).getLong("C_ID"));
assert((initialBalance - paymentAmount) == customersX.fetchRow(1).getDouble("C_BALANCE"));
assert((initialYTD + paymentAmount) == customersX.fetchRow(1).getDouble("C_YTD_PAYMENT"));
assert(2 == customersX.fetchRow(1).getLong("C_PAYMENT_CNT"));
return null;