To leanr more about Graph Database, check the following file.
https://www.youtube.com/watch?v=F_YlClC8aF0
https://www.youtube.com/watch?v=PhjS-3y0r4Y
https://www.youtube.com/watch?v=nggWrSoA-9s
https://www.youtube.com/watch?v=ZLJ-3DJVufw
https://www.youtube.com/watch?v=zNqrVyfOQtY
https://www.youtube.com/watch?v=m3VoTPULXTk
Regards to DevelopersBr :)