The following describes how to select HUAWEI CLOUD DATA WAREHOUSE SERVICE GAU S D B...

DWS is more suitable for online transaction processing (OLTP), and insufficient read support for large amounts of data

DWS uses the scale and resources of multiple nodes and uses various optimization methods (column memory, vector engine, distributed framework, etc.), focusing on online analytical processing (OLA P)

RDS is more suitable for online transaction processing (OLTP), and insufficient read support for large amounts of data

If you need to use custom code to process and analyze very large data sets through big data processing frameworks such as Apache Spark, Hadoop or HBase, you should make it with DWS