SAP HANA Overview & Architecture

What are SAP HANA's main use cases?

How does SAP HANA guarantee ACID durability when its data lives in volatile DRAM?

What are the trade-offs between an embedded and a dedicated SLT installation?

What data-provisioning / replication technologies can feed data into SAP HANA?

Which SAP HANA services run only in the system database yet serve all tenants, and why?

What happens when a SAP HANA license expires or all licenses are deleted?

What are the temporary, permanent-enforced, and permanent-unenforced SAP HANA license keys?

How does SAP LT Replication Server (SLT) capture changes, and what is it built on?

What is SAP liveCache on SAP HANA?

What is the relationship between SAP S/4HANA, SAP HANA, and the ABAP Platform?

What is "code pushdown" with SAP HANA?

What is the role of the SAP HANA name server (hdbnameserver)?

How does a standby node provide host auto-failover in a scale-out SAP HANA system?

Why and how is a SAP HANA system scaled out (distributed / multihost)?

What do all databases within one SAP HANA instance necessarily share?

What is the SAP HANA XSA runtime, and what is its relationship to the classic XS engine?

What are PAL, APL, and EML in SAP HANA's predictive/ML option?

What is a SAP HANA-based accelerator for SAP ERP, and how does it work?

What are the four SAP HANA editions, and which delivery model does each use?

What is Direct Extractor Connection (DXC) and when is it appropriate?

From a licensing perspective, what capability bundles does SAP define, and what is the runtime edition?

What are SAP HANA's three backup targets?

Why does a column store outperform a row store for analytical (OLAP) queries?

Do indexes still exist in SAP HANA, and when does SAP still recommend creating one?

What advanced-analytics options does SAP HANA offer?

How do SAP HANA Smart Data Integration (SDI) and Smart Data Quality (SDQ) differ?

What are the table distribution/partitioning options in a scale-out system, and what benefits does partitioning bring?

What is the role of the SAP HANA index server (hdbindexserver)?

What are the key building blocks of the SAP HANA XSA platform?

What is SAP HANA Cloud, and how does it relate to the SAP HANA platform edition?

When are row-store tables preferable to column-store tables in SAP HANA?

Which SAP HANA services are optional and must be added manually?

What backup types does SAP HANA support, and how do differential and incremental delta backups differ?

How does the SAP HANA column store handle writes efficiently (delta store and delta merge)?

In what respects is a SAP HANA tenant database isolated from other tenants?

What is the SAP HANA system database used for, and what are its key limitations?

How does SAP HANA persist in-memory data using savepoints and redo logs?

At an overview level, what is SAP HANA system replication?

What is SAP HANA Smart Data Access (SDA)?

What is dictionary encoding in the SAP HANA column store?

How is a SAP HANA system identified and structured (multitenant database containers)?

What is SAP HANA at its core, and what does keeping a single copy of the data enable?

What are SAP HANA's two database-isolation levels?