To learn about Pivotal Greenplum you can use the Pivotal Greenplum Virtual Sandbox with the following Tutorial:.
In order to use the Sandbox and Tutorial on a Windows machine you have to first download the Virtual Box Player or the the VM Workstation Player. For a MAC, you will use Fusion and it’s described in the Appendix to the Tutorial).
The player downloads are at:
VirtualBox Player: https://www.virtualbox.org/wiki/Downloads
VM Workstation Player (there is a free non-commercial use option during the install)
You will use one of the above players with the VM's that you download from the Pivotal website. There is a separate download for each player. You have to register to get access.
The downloads for the GPDB 18.104.22.168 VM's are at: https://network.pivotal.io/products/pivotal-gpdb#/releases/1683/file_groups/411