I am completely novice when it comes to this whole EV thing, and breeding for certain traits etc.
What i am wanting to know is what nature corresponds to what stats?
Natures Chart
An example of what i want it to breed/train an Umbreon for attack/speed which means i need to breed an eevee, get the right nature, and then raise its happiness to evolve it at its first level up correct?
Umbreon is not much of a physical attacker with an attack stat of 66. It is better used for support as shines in defenses. A careful nature is preferred
Is there a website that tells you which natures correspond to which stats?
The link is up above
Next i want to know how to tell what my EV's are. I know there is some formula but i cant seem to find it right now. also with this formula how do you know what the base stat is at a given level for that specfic pokemon?
There are 510 EVs. Only 255 can belong to one stat. If you divide the number of EV's by 5 than thats how much stats will be added onto the Pokemon's stats.
In order to breed for specific pokemon is it necessary to breed said pokemon together? or use a ditto? or are there other ways to ensure a hatchling of what you want?
Ditto/Female + Everstone = Nature. Also, the better the stats of the parents, the better the chances of good stats on the kid
Is there a database that tells me where to go to train for certain stats?
Each Pokemon gives off some kind of effort values, and there are good areas to train for each. Remember the "power" items, the medicines (only go up to 100Evs), and Pokerus'
HP - Stunfisk (Iccurus City)
Sp.Atk - Litwick (Celestial Tower)
Atk - Patrat/Lilpup
Speed - Basculin (Surf, Wellspring Cave)
Sp.Def - Frillish (Surf, Route 18)
Def - Durrant (Twist Mt) Vennipede/Swadloon (Various)
Also im unsure about the whole multiple levels during a single fight, will the EV's be calculated the same for each individual level?
Yes, whatever EV values you get addonto the next level
How do EV's work with EXP share? will the pokemon with the exp share recieve the same EV bonuses as those who directly earned the experience?
Yes, EXP Shares work~
Thanks