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Connections are repository items that can easily be created in RapidMiner Studio. They contain parameters, such as hostname, username, and password, that are needed to establish a connection to a database or other supported data source. These parameters can be stored within the connection or they can be retrieved from an external source and injected at the moment of use.
The following articles show how you can create connections with injected parameters to scalably serve multiple users, using RapidMiner Server as an external source.