## 6.4 Data Access
SAP HANA supports the integration of data from many data sources to enrich your applications and deliver indepth analysis. These include federated queries, data replication, remote data sync, and processes to improve data quality.
This section provides an overview of the tools and technologies that are available with SAP HANA or supported by SAP HANA for data access and data virtualization. For more information about the administration of these technologies, as well as other operations topics, refer to the documentation indicated.
## Native Capabilities for Data Access, Integration, and Quality in SAP HANA
| Capability                                           | Description                                                                                                                                                                                                                 | More Information                                                                                                                                                                |
|------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Data Federation with SAP HANASmart Data Access (SDA) | SAP HANASDAenables you to create virtual tables in SAP HANAthat point to virtual tables on remote sources, such as SAP ASE, SAP IQ, Hadoop, and Tera­ data.                                                                  | See SAP HANASmart Data Access and SAP HANAHadoop Integration in the SAP HANAAdministration Guide .                                                                              |
| Data Replication and Transformation                  | SAP HANAsmart data integration pro­ vides the architecture that supports all types of data delivery in SAP HANA: real-time, batch, and federation (SDA). It includes both data replication and data transformation services. | See the documentation forSAPHANA smart data integrationandSAPHANA smart data quality option on SAP Help Portal at https:/ /help.sap.com/ viewer/p/HANA_SMART_DATA_INTE­ GRATION. |
| Capability                  | Description                                                                                                                                                       | More Information                                                                                                                             |
|-----------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------|
| Remote Data Synchronization | SAP HANAremote data sync is a ses­ sion-based synchronization technology designed to synchronize SAP SQL Any­ where remote databases with a consoli­ dated database. | See the documentation forSAPHANA real-time replication on SAP Help Portal at http:/ /help.sap.com/viewer/p/ SAP_HANA_REAL_TIME_REPLICA­ TION. |
## Data Replication Technologies in the ExtendedSAP HANA Landscape
| Capability                                       | Description                                                                                                                                                                                                                                               | More Information                                                                                                                                               |
|--------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Trigger-Based Replication                        | The trigger-based replication method uses the SAP Landscape Transforma­ tion (LT) Replication Server component to pass data from the source system to the SAP HANAdatabase target system.                                                                  | See the documentation forSAPHANA real-time replication on SAP Help Portal at https:/ /help.sap.com/viewer/p/ SAP_LANDSCAPE_TRANSFORMA­ TION_REPLICATION_SERVER. |
| SAP HANADirect Extractor Connection              | SAP HANADirect Extractor Connection (DXC) provides SAP HANAwith out-of- the-box foundational data models based on SAP Business Suite entities, and is a data acquisition method as well.                                                                  | See SAP HANADirect Extractor Con­ nection Implementation Guide                                                                                                  |
| Extraction Transformation Load-Based Replication | Extraction Transformation Load (ETL)- based data replication uses SAP Data Services (also called Data Services) to load relevant business data from SAP ERP to the SAP HANAdatabase. This lets you read the business data on the application layer level. | See the documentation for SAP Data Services on SAP Help Portal at http:/ / help.sap.com/viewer/p/ SAP_DATA_SERVICES                                            |
| Log-Based Replication                            | SAP Replication Server (SRS) moves and synchronizes transactional data in­ cluding DMLand DDL across the enter­ prise, providing low impact, guaranteed data delivery, real-time business intelli­ gence, and zero operational downtime.                     | See the documentation for SAP Repli­ cation Server on SAP Help Portal at http:/ /help.sap.com/viewer/p/ SAP_REPLICATION_SERVER                                  |
## Related Information
Important Disclaimer for Features in SAP HANA Platform [page 75]