Maybe you should try translating your question from your native language using Google translate...
All the connection details you need for using pgadmin to connect to your database are contained in the alfresco-global.properties file. You will only need to database host name, the port (typically 5432), the user name and the password. The node data can be found in the alf_node, alf_node_aspects, alf_node_properties tables, with parent-child relations being handled in the alf_child_assocs table. Access control data (ACLs) are handled via the alf_acl_* tables.