ATG requires five different database user accounts for database configuration. Create the following accounts before configuring the databases.
| Database Schema | Contents | 
|---|---|
| 
 | All the tables for the ATG platform, internal users, the Business Control Center and Knowledge Manager tables. | 
| 
 | Unversioned repository tables that are used by Knowledge Manager and Self Service. If this schema already exists, use the existing schema; do not create a new one. | 
| 
 | Repository tables that are used by Search. | 
| 
 | Repository tables for data warehouse. If this schema already exists, use the existing schema; do not create a new one. | 
| 
 | Repository tables for production switching. | 

