Hi guys, this is my third guide enjoy!
1. Find the area you want to change the starting area to and type ".gps" (no parentheses). This should give you a map a zone and some x y z coordinates. I suggest your write them down somewhere.
Important: Write all the decimals down. Being one digit off can be the difference between it working, and your characters falling through the ground.
2. Use your database editing software (Navicat, HeidiSQL SQLYog).
3.Open Up Your world databse (Usually named world or aworld or ascent)
4. Go to the table called "playercreateinfo".

5. Now this part is a little tricky. There is a column called "Race" and a column called "Class"
Playercreateinfo Race IDs
Code:
1 Human
2 Orc
3 Dwarf
4 Night Elf
5 Undead
6 Tauren
7 Gnome
8 Troll
10 Blood Elf
11 Draenis
Playercreateinfo Class IDs
Code:
1 Warrior
2 Paladin
3 Hunter
4 Rogue
5 Priest
7 Shaman
8 Mage
9 Warlock
11 Druid
So a 1 in the race column and a 1 in the class column would mean that, that specific row is for Human Warriors.

6. Now go to the row of the Race/class combo's starting places you want to edit. And input the map ID and zone ID and XYZs that you got through the .gps.
Tip: I suggest you round the "z" coordinate column up a little. So that 19.81293 would be 19.9, so the characters do not fall through the ground.
Your done already!