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Oracle
Home >Oracle > Checking privileges on oracle objects
Recently some colleagues did get sort of lost looking for their privileges on some other schema procedures and directories. So as requested, it follows some brief suggestions on checking user privileges on different oracle objects. Many users know that to check if a schema has privileges on another schema's table simply need to check the dictionary view user_tab_privs. For example, if USER_A creates a table and allows USER_B to query and update it:
SQLPLUS> create table t(n number);
SQLPLUS> grant select, insert on t to USEER_B;
Then schema USER_B can check his privileges on USER_A objects querying the view user_tab_privs:
SQLPLUS> select * from user_tab_privs where owner='USER_A';
But what about privileges on other objects such as procedures or directories. Following oracle naming logic, We would look for user_procedures_privs , user_directories_privs or something like that, and get just "object not found". As a matter of fact, until now (Oracle 10g), user_tab_privs, dba_tab_privs, all_tab_privs are the dictionary objects to check schemas privileges. If, for example USER_A creates a procedure and a oracle directory and allows USER_B to executing on the first, and reading, writing on the other.
SQLPLUS>create or replace procedure pro_joke as
begin
dbms_output.put_line('Just a joke');
end;
/
SQLPLUS> grant execute on pro_joke to USER_B; SQLPLUS> create or replace directory tmp_dir as '/tmp'; SQLPLUS> grant read, write on directory tmp_dir to USER_B; Now USER_B wants to check his privileges on USER_A new objects. (By the way, note carefully, the query where condition is set on grantor not on owner as before, because the owner of an Oracle directory is by default SYS).
SQLPLUS> select * from user_tab_privs where grantor='USER_A';
So [dba/all/user/]_tab_privs is the source of not only tables but objects privileges. Next question is if privileges on tables, views, procedures, functions, directories merge all in the same view tab_privs, how to know which kind of objects we have ? Answer is easy, joining to all_objects views: SQLPLUS>col owner format a12; SQLPLUS>col object format a12; SQLPLUS>col object_type format a16; SQLPLUS>col privilege format a16; SQLPLUS> select p.table_name object, o.object_type, p.privilege , p.owner from user_tab_privs p, all_objects o where p.table_name = o.object_name order by 1;
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