i tried to update table wwv_flow_item_list in Oracle autonomus database on cloud but i get error insuficient privileges. I cant even select data from those tables (all wwv prefix). User is ADMIN. which user have rights to perform these tasks ?
Related
I am working in an Oracle APEX application and am trying to query tables in another schema (that another Oracle APEX application sits on) to pull in data to my application.
The applications are hosted within the same APEX workspace and on the same Oracle 11g instance. Our application have tables that are structurally the same as the tables we're trying to query in the other schema.
Using the schema prefix (SELECT * FROM "SCHEMA2".TABLE1;) when querying is throwing an error that the tables do not exist (ORA-00942: table or view does not exist)
The second thing I tried is creating a database link between the two schemas, but when trying to establish the connection I'm getting the following error: ORA-01031: insufficient privileges
Can someone identify where I'm going wrong here / help me figure out how to query the other schema?
Database link is used when there are different databases involved; your schemas reside in the same database which means that the first attempt was correct: prefixing table name with its owner, e.g.
SELECT * FROM SCHEMA2.TABLE1
However, first connect as schema2 user and issue
grant select on table1 to schema1;
Otherwise, schema1 can't see the table. If schema1 is supposed to do something else with that table, you'll have to grant additional privileges, such as insert, update, delete, ....
Due to security issues the user or Informatica has grants to create neither tables nor synonyms.
So I have come up with this:
The PMERR_DATA, PMERR_MSG, etc. tables are created under another user
The user of Informatica is granted to select, inset, update and delete from these tables
Name of the owner of the tables was set in the error table log prefix field:
But when the task starts, the integration service tries to create these PMERR% tables and it fails (due to lack of permissions to create tables)
How can these restrictions be overcome?
I have a user on DB1 with only SELECT privileges.
I have a DBLink to DB2 created on DB1.
What are the priveleges that the user will have on DB2 tables? Do they depend on his priveleges on DB2?
Thank you
If you look at the syntax of a database link, the privileges one has with the database link are dependent on the database user which is being used
to connect with the database being linked.
For example, with the database link below, the apps database account is being used on the db2 database.
Thus whatever privileges are granted to apps#db2, system or object, these are the privileges which user1#db1, the owner of the dblink, has through this database link.
CREATE DATABASE LINK user1.db1_to_db2.cm.big_company.com
CONNECT TO apps IDENTIFIED BY VALUES apps_password USING '(DESCRIPTION=
(ADDRESS_LIST=
(ADDRESS=(PROTOCOL=tcp)(HOST=hostname.cm.big_company.com)(PORT=1577))
)
(CONNECT_DATA=
(SERVICE_NAME=db2)
)
)';
I'm using Oracle's 10g version.
In the database, I would like to create a configuration table and fill it with data.
Then the other users can not change anything in it, and even better that it was not at all visible to other users. Is it possible to somehow hide the table?
Regards
Create a separate schema for that table. Create a package that provides an API to your configuration data (e.g. to get a value that is needed by another program).
Revoke CREATE SESSION privilege from that schema (i.e. just don't grant any privileges to the schema at all). Don't grant any privileges on the table. The only users who will be able to see the table are those with DBA privileges.
The only thing that database sessions will be able to do is execute the package, IF they have been granted EXECUTE privilege on it.
If you do not grant enough privileges to other users, they could not see your objects.
An application needs to access various Oracle database. Some databases have tables in Schemas, some don't - there's no control over this.
If a database has a schema in use, the applicable won't work unless the user enters a schema. I'd like it to be able determine via a SQL query if a schema is required to access the tables so the user can be alerted to this.
I'm aware of the question - How do I obtain a list of schemas that an Oracle user has access to - but that only tells me what schema's can be accessed, not if use of the schema is required to access tables.
Is there an SQL query to one of the system tables that can do this with that user's rights?
Note: The application only has login credentials and doesn't know any table details.
Hope that's clear. Thanks.
Question is confusing. For most part in Oracle, you can consider LOGIN == USER == SCHEMA. When you login into your database with your user, you are able to see and access all objects in that user's schema.
Objects in other schemas (on same database server) can be accesed by SCHEMA2.TABLE1 if connected user has privileges to acces table (there are different privileges...). As already stated in some comments, you do not need to prefix table if synonym exists. Your user can access even tables on some remote server if exists appropriate database link.