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Como verificar os privilégios (DDL,DML,DCL) em objetos atribuídos a Schema, Roles in oracle Database?


Um breve resumo sobre o prefixo de visualização do dicionário de dados:
ALL_    -Describes PUBLIC Object grants.
USER_   -Describes current user Object grants.
DBA_    -Describes all object grants in the database.

Informações úteis sobre visualizações:
ROLE_ROLE_PRIVS     -describes the roles granted to other roles. 
ROLE_SYS_PRIVS      -describes system privileges granted to roles.
ROLE_TAB_PRIVS      -describes table privileges granted to roles. 
DBA_ROLE_PRIVS      -describes the roles granted to all users and roles in the database.
DBA_SYS_PRIVS       -describes system privileges granted to users and roles.
DBA_TAB_PRIVS       -describes all object grants in the database.
DBA_COL_PRIVS       -describes all column object grants in the database.

Para saber mais sobre PRIVS visualizações visite aqui .

Consultas:

-Sobre o status do usuário/esquema
select username,account_status, created from dba_users where username in ('SCOTT');

-Verifique as funções atribuídas à função e ao esquema
select * from DBA_ROLE_PRIVS where grantee in ('SCOTT','RESOURCE');

-Verifique os privilégios da função
select * from ROLE_ROLE_PRIVS where role in ('RESOURCE','CONNECT');    
select * from ROLE_TAB_PRIVS  where role in ('RESOURCE','CONNECT');
select * from ROLE_SYS_PRIVS  where role in ('RESOURCE','CONNECT');

Pseudo Code:
select 'grant '||privilege||' to ROLE_SLAVE;' from ROLE_SYS_PRIVS where role in ('RESOURCE','CONNECT');
select 'grant '||privilege||' to ROLE_SLAVE;' from ROLE_TAB_PRIVS where role in ('RESOURCE','CONNECT');

-Verificar privilégios de objetos concedidos para esquema
select * from DBA_SYS_PRIVS where grantee in ('SCOTT');
select * from DBA_TAB_PRIVS where grantee in ('SCOTT');
select * from DBA_COL_PRIVS where grantee in ('SCOTT');

Pseudo Code: 
select 'grant '||privilege||' to SCOTT_SLAVE;' from DBA_SYS_PRIVS where grantee in ('SCOTT');
select 'grant '||privilege||' on '||owner||'.'||table_name||' to SCOTT_SLAVE;' from DBA_TAB_PRIVS where grantee in ('SCOTT');
select 'grant '||privilege||' ('||column_name||') '||' on '||owner||'.'||table_name||' to SCOTT_SLAVE;' from DBA_COL_PRIVS where grantee in ('SCOTT');

Obrigado!