Please read the official SAP HANA Spatial Refernce Guide
SAP HANA Spatial Reference - SAP Library
You can also find tutorials in the SCN from the community such as
Experiences with SAP HANA Geo-Spatial Features – Part 1
Experiences with SAP HANA Geo-Spatial Features – Part 2
SAP HANA: Calculating distance between 2 cities using Geo-Spatial functions
...
The HANA Academy offers video tutorials:
SAP HANA Academy - Geo Spatial in HANA: Importing Data from a CSV File - YouTube
SAP HANA Academy - Geo Spatial in HANA: Creating Spatial Type Data from an Existing Table - YouTube
[SAP HANA Academy] - Spatial: Installing the Spatial MapClient
[SAP HANA Academy] Geo Spatial in SAP HANA: Imp... | SCN
[SAP HANA Academy] Geo Spatial in SAP HANA: Creating Spatial Type Data from an Existing Table
...
Best regards,
Hinnerk