Black or dark stools are a common side effect that may be the harmless result of unabsorbed iron. Whether you are taking iron supplements alone or a multivitamin with iron, you may experience this. Check with your doctor or healthcare provider to find the cause of black stools.
CCYYMMDD is just yyyyMMdd. The CC is for the two digit century which is the same as the first two digits of the year. I think people do that because people see yyyy and still type 12 instead of 2012. So today's date would be 20120717.
Format: CCYY-MM-DD. This may vary from database to database, but what does the following format mean and yield... Today is 2013-08-01, and we are in the 21st century, so my understanding is that the above Date Format would yield... If that is the case, then this definitely is NOT what my client thinks it means!!