Overview
ORA-01019 is an Oracle error code which is thrown when a user attempts to connect to a database and the required memory allocation on the user's end is not fulfilled. This error can occur due to insufficient memory available on the user's end, or due to a memory leak occurring in the database itself. ORA-01019 is considered a critical error, as it will make it impossible for a user to access the database they are attempting to connect to.
Causes of ORA-01019 Error
The ORA-01019 could be caused by a few key issues, including but not limited to:
- Insufficient memory is allocated to the user.
- A user has attempted to connect to a non-existent database or table.
- Insufficient memory is available on the user's host.
- A memory leak has occurred in the database itself.
- The database is corrupt.
How to Resolve ORA-01019
In order to troubleshoot and resolve ORA-01019, the following steps should be taken:
- Check to ensure that sufficient memory is allocated to the user.
- Ensure that the database or table the user is trying to connect to is valid.
- Ensure that sufficient memory is available on the user's host
- Check for memory leaks in the database itself.
- If the database is still unavailable, consider restoring from a backup.
FAQs
Q. What is ORA-01019?
A. ORA-01019 is an Oracle error code which is thrown when a user attempts to connect to a database and the required memory allocation on the user's end is not fulfilled.
Q. What could be the possible causes of ORA-01019?
A. The ORA-01019 could be caused by a few key issues, including but not limited to insufficient memory allocation, attempting to connect to a non-existing database or table, insufficient memory available on the user's host, memory leak occurring in the database, or the database corruption.
Q. How do I resolve an ORA-01019 error?
A. In order to troubleshoot and resolve ORA-01019, the following steps should be taken: 1) Check to ensure that sufficient memory is allocated to the user; 2) ensure that the database or table the user is trying to connect to is valid; 3) ensure that sufficient memory is available on the user's host; 4) check for memory leaks in the database itself; and 5) if the database is still unavailable, consider restoring from a backup.
Q. What should I do if restoring from a backup does not solve the ORA-01019 error?
A. If restoring from a backup does not solve the ORA-01019 error, the issue may need to be investigated by an Oracle expert.
Q. What other errors could be caused by the same set of issues that can cause the ORA-01019 error?
A. Other errors which can be caused by the same set of issues that can cause the ORA-01019 error include ORA-00604, ORA-03114, and ORA-01033.
Related Links
https://ittutorial.org/ora-01019-unable-to-allocate-memory-in-the-user-side/
http://www.dba-oracle.com/t_ora_01019_unable_to_allocate_memory_in_the_user_side.htm