Separate databases in a network in WP Multisite
I need to create some websites in under each network.
Here's my problem:
In a network the database is shared, but I don't want that to happen. I want each website to have each own database.
Is there a tool to split the databases within a network?
And one more question:
Is there a tool to connect the databases of 2 sites sitting on separate networks with one login allowing them to share a common user base?