MAPSCHEMANAMES 
System table SYSLOADER.MAPSCHEMANAMES contains information about the schema maps that the Loader can use.
Structure
PACKAGEGUID |
CHAR(24) BYTE |
Unique ID of the schema map |
MAPPINGNAME |
CHAR(32) |
Name of the schema map |
SOURCESCHEMANAME |
CHAR(32) |
Name of the schema that is mapped to the target schema |
TARGETSCHEMANAME |
CHAR(32) |
Name of the schema that the original schema is mapped onto |
When a schema map is created, the corresponding entries are inserted into the MAPSCHEMANAMES system table. If you delete a schema map, the corresponding entries are deleted from this system table.