Each dataset is a separate file on disk All the contents in each personal geodatabase are held in a single Microsoft Access file (.mdb). Size Limits Up to DBMS limits : One TB for each dataset. Each file geodatabase can hold many datasets Two GB per Access database Versioning Support
Vitamin B12, also called cobalamin, is found in foods from animals, such as red meat, fish, poultry, milk, yogurt, and eggs. In recent years, fortified cereals, breads, and other grain products have also become important dietary sources of B12 and folate (identified as folic acid on nutritional labels).
Share. Vitamin B12, also known as cyanocobalamin, is an essential nutrient in the family complex of the eight B vitamins. Food is the primary source for this nutrient, with supplements being the secondary source for some people. Vitamin B12 is structurally the largest and most complex of all the vitamins known to man.uman requirements for vitamin B12 as set by the Daily Recommended Intake (DRI) are 2-3 micrograms/mcg per day to upwards of 4-7 micrograms/mcg per day. Naturally-occurring sources of Vitamin B12 are found primarily in foods of animal origin and among fortified foods of vegetarian/vegan origin.