The feature "Snapshot Support" in SAP BW/4HANA is designed to enable the retention of historical data snapshots within a Standard DataStore Object (DSO). When enabled, this feature allows the system to maintain multiple versions of records over time, which is useful for auditing, tracking changes, or performing historical analysis. However, this capability comes with trade-offs in terms of performance for certain data management processes.
Let's evaluate each option:
* Option A: Selective Data DeletionWith Snapshot Support enabled, selective data deletion becomes slower because the system must manage and track historical snapshots. Deleting specific records requires additional processing to ensure that the integrity of historical snapshots is maintained. This process involves checking dependencies between active and historical data, making it more resource- intensive compared to scenarios without Snapshot Support.
* Option B: Delete request from the inbound tableDeleting requests from the inbound table is generally unaffected by Snapshot Support. This operation focuses on removing raw data before it is activated or processed further. Since Snapshot Support primarily impacts activated data and historical snapshots, this process remains efficient regardless of whether the feature is enabled.
* Option C: Filling the Inbound TableFilling the inbound table involves loading raw data into the DSO.
This process is independent of Snapshot Support, as the feature only affects how data is managed after activation. Therefore, enabling Snapshot Support does not slow down the process of filling the inbound table.
* Option D: Activating DataWhile activating data may involve additional steps when Snapshot Support is enabled (e.g., creating historical snapshots), it is not typically as slow as selective data deletion.
Activation processes are optimized in SAP BW/4HANA, even with Snapshot Support, to handle the creation of new records and snapshots efficiently.
* SAP BW/4HANA Administration Guide: Discusses the impact of Snapshot Support on data management processes, including selective data deletion.
* SAP Help Portal: Provides insights into how Snapshot Support works and its implications for performance.
* SAP Best Practices Documentation: Highlights scenarios where Snapshot Support is beneficial and outlines potential performance considerations.
References:In conclusion,Selective Data Deletionis the process most significantly impacted by enabling Snapshot Support in a Standard DataStore Object. This is due to the additional complexity of managing historical snapshots while ensuring data consistency during deletions.