Which component is responsible for executing a savepoint in SAP HANA?

Which component is responsible for executing a savepoint in SAP HANA?

• A. Transaction log handler
• B. Database manager
• C. Backup scheduler
• D. Data replication server

Answer: (B)

The database manager is responsible for executing a savepoint in SAP HANA. A savepoint is a crucial operation that captures the current state of the database, essentially creating a consistent snapshot of the database at a specific point in time. This is particularly important for recovery purposes; in the event of a failure, the database can be restored to this last savepoint rather than recovering to the most recent transaction, which might not be as stable. The database manager coordinates various operations within the database and ensures that data integrity is maintained during transactions. By executing a savepoint, it helps manage how data modifications are logged and how they can be reconstructed if necessary. This capability differentiates the database manager from other components such as the transaction log handler, which tracks changes for recovery but does not handle savepoints directly; the backup scheduler, which focuses on scheduling backups rather than managing transactional state; and the data replication server, which manages data distribution and synchronization across different systems rather than internal database state management.

The database manager is responsible for executing a savepoint in SAP HANA. A savepoint is a crucial operation that captures the current state of the database, essentially creating a consistent snapshot of the database at a specific point in time. This is particularly important for recovery purposes; in the event of a failure, the database can be restored to this last savepoint rather than recovering to the most recent transaction, which might not be as stable.

The database manager coordinates various operations within the database and ensures that data integrity is maintained during transactions. By executing a savepoint, it helps manage how data modifications are logged and how they can be reconstructed if necessary.

This capability differentiates the database manager from other components such as the transaction log handler, which tracks changes for recovery but does not handle savepoints directly; the backup scheduler, which focuses on scheduling backups rather than managing transactional state; and the data replication server, which manages data distribution and synchronization across different systems rather than internal database state management.