PSROLES.SQL
For an Oracle rdbms installation, Tools 8.51, we see that the script PSROLES.SQL grants several high privileges to PSADMIN role which is in turn granted to SYSADM account. The list of those privileges are below.
GRANTEE PRIVILEGE ADM
PSADMIN ADMINISTER DATABASE TRIGGER YES
PSADMIN ADMINISTER RESOURCE MANAGER YES
PSADMIN ALTER ANY PROCEDURE YES
PSADMIN ALTER ANY TABLE YES
PSADMIN ALTER ANY TRIGGER YES
PSADMIN ALTER SESSION YES
PSADMIN ANALYZE ANY YES
PSADMIN COMMENT ANY TABLE YES
PSADMIN CREATE ANY INDEX YES
PSADMIN CREATE ANY INDEXTYPE YES
PSADMIN CREATE ANY PROCEDURE YES
PSADMIN CREATE ANY SEQUENCE YES