If you are encountering the ORA-01562 error in Oracle, it means that resource quotas are not allowed in the REVOKE statement. This error typically occurs when you are trying to revoke a resource allocation from a user, and there are existing resource quotas in place.
Here are some steps to diagnose and fix the ORA-01562 error in Oracle:
Diagnosing the Error
When you encounter the ORA-01562 error, the first step is to identify the existing resource quotas that are causing the issue. You can do this by querying the DBA_TS_QUOTAS view to check for any existing quotas on the tablespace in question.
You can use the following SQL query to identify any existing quotas:
SELECT * FROM DBA_TS_QUOTAS WHERE TABLESPACE_NAME = 'your_tablespace';
Replace ‘your_tablespace’ with the name of the tablespace where the error is occurring.
Fixing the Error
Once you have identified the existing quotas, you have a few options for fixing the ORA-01562 error.
1. Remove the Existing Quotas:
If the existing quotas are no longer needed, you can remove them using the ALTER USER statement. Here’s an example of how to remove a quota for a specific user on a tablespace:
ALTER USER your_user QUOTA 0 ON your_tablespace;
Replace ‘your_user’ with the username and ‘your_tablespace’ with the tablespace name.
2. Modify the Quotas:
If the existing quotas need to be adjusted, you can modify them using the ALTER USER statement. Here’s an example of how to modify a quota for a specific user on a tablespace:
ALTER USER your_user QUOTA 100M ON your_tablespace;
Replace ‘your_user’ with the username, ‘100M’ with the new quota size, and ‘your_tablespace’ with the tablespace name.
3. Revoke the Quotas before Revoking Resource Privileges:
Before revoking resource privileges from a user, you can first revoke the existing quotas using the following SQL statement:
REVOKE UNLIMITED TABLESPACE FROM your_user;
Replace ‘your_user’ with the username.
Further Assistance
If you require further assistance with diagnosing and fixing the ORA-01562 error in Oracle, consider consulting the Oracle documentation or reaching out to the Oracle support community for additional guidance.
By following these steps, you can effectively diagnose and fix the ORA-01562 error in Oracle, ensuring that resource quotas are properly managed when revoking resource privileges from users.
