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Message type: E = Error
Message class: UKM - UKM Message Class
Message number: 097
Message text: Update of long key values requires exclusive locks
The update was started with the option to not use exclusive locks
selected. This scenario requires that only independent data that has not
yet been persisted is processed. In this context, no key values with a
length of more than 32 characters can be passed. In this case, the value
&V1& exceeds the permitted length.
The update in context &V2& was not performed, since at least one key
value exceeds the maximum length of 32 characters.
The calling component must call the update process with exclusive locks.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
UKM097
- Update of long key values requires exclusive locks ?The SAP error message UKM097 indicates that there is an issue with updating long key values in the system due to the lack of exclusive locks. This typically occurs in scenarios where multiple processes or transactions are trying to access or modify the same data simultaneously, leading to a conflict.
Cause:
- Concurrent Access: The error usually arises when multiple users or processes attempt to update the same long key value at the same time without the necessary exclusive locks.
- Lock Management: SAP uses a locking mechanism to prevent data inconsistencies. If a process does not acquire an exclusive lock before attempting to update a long key value, this error can occur.
- Long Key Values: The error specifically pertains to long key values, which are often used in complex data structures or when dealing with large datasets.
Solution:
- Check for Locks: Use transaction code SM12 to check for existing locks on the relevant data. If you find any locks that are not being released, you may need to investigate further or release them if appropriate.
- Ensure Exclusive Locks: Make sure that your program or transaction is correctly requesting an exclusive lock before attempting to update long key values. This can often be done using the appropriate locking function modules (e.g.,
ENQUEUE_
andDEQUEUE_
).- Review Code Logic: If you are developing custom code, review the logic to ensure that locks are being handled correctly. Ensure that locks are acquired before updates and released afterward.
- Batch Processing: If the error occurs during batch processing, consider implementing a mechanism to serialize access to the data being updated, ensuring that only one process can update the long key values at a time.
- Consult SAP Notes: Check the SAP Support Portal for any relevant notes or updates regarding this error message. There may be specific patches or recommendations provided by SAP.
Related Information:
If the problem persists after trying the above solutions, consider reaching out to your SAP Basis team or SAP support for further assistance.
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