Repository is metadata which means it has data about the data(objects). It stores the data regarding the Informatica objects .For eg: We have a folder say “Folder1” and 3 mappings has been CREATED WITHIN it, so all the information regarding all objects in mapping and the folder will be stored in repository database in forms of TABLES.

Repsoitory database is a database which contains all the metadata WHEREAS the repository service is nothing but a service which runs on repository database and provides its services.

OPB_Mapping: This table contains all the mapping names.

Repository is metadata which means it has data about the data(objects). It stores the data regarding the Informatica objects .For eg: We have a folder say “Folder1” and 3 mappings has been created within it, so all the information regarding all objects in mapping and the folder will be stored in repository database in forms of tables.

Repsoitory database is a database which contains all the metadata whereas the repository service is nothing but a service which runs on repository database and provides its services.

OPB_Mapping: This table contains all the mapping names.