To capture from a multitenant database, you must use an Extract that is configured at the root level using a c## account. To apply data into a multitenant database, a separate Replicat is needed for each PDB, because a Replicat connects at the PDB-level and doesn't have access to objects outside of that PDB

One Extract group can capture from multiple pluggable databases to a single trail. In the parameter file, source objects must be specified in TABLE and SEQUENCE statements with their fully qualified three-part names in the format of container.schema.object.

As an alternative to specifying three-part names, you can specify a default pluggable database with the SOURCECATALOG parameter, and then specify only the schema.object in subsequent TABLE or SEQUENCE parameters. You can use multiple instances of this configuration to handle multiple source pluggable databases. For example:

SOURCECATALOG pdb1
TABLE phoenix.tab;
SEQUENCE phoenix.seq;
SOURCECATALOG pdb2
TABLE dallas.tab;
SEQUENCE dallas.seq;