Oracle Software Engineer Interview Questions

I would first assess the scope of the corruption, identify whether backups are usable, and protect any remaining good data. Then I would determine whether recovery, repair, or restoration is the safest path. The key is to reduce damage quickly while preserving as much data as possible.

I would choose indexes based on the most common query patterns and balance read performance against storage and write cost. Then I would make sure the index actually helps the query instead of just adding overhead. Good indexing is about matching the workload.

I would organize the schema so each piece of data has one clear place and dependencies are reduced. Then I would choose the right level of normalization based on performance and maintenance needs. A strong answer shows that normalization improves consistency but is not always the only concern.

I would start with the core operations, then think about partitioning, replication, durability, and consistency. After that I would decide how the system handles failure and data rebalancing. The design should be simple to explain but strong enough to scale.

I would say a clustered index defines the physical or primary ordering of data, while a non-clustered index is a separate structure that points back to the rows. Then I would explain how that affects lookup speed and storage. A good answer keeps the explanation practical rather than overly theoretical.