Why is ApsaraDB for PolarDB better than other traditional database engines? (The number of answer: 3)

Why is ApsaraDB for PolarDB better than other traditional database engines? (The number of answer: 3)
A . When you purchase a PolarDB cluster, you don’t need to specify the storage capacity you want to purchase
B . PolarDB supports both OLTP and OLAP scenarios very well
C . The PolarDB database engine won’t require you to replicate data when adding read-only nodes
D . ApsaraDB for PolarDB uses the pay-as-you-go billing method, therefore you only need to pay for the storage resources you actually use

Answer: A,C,D

Explanation:

Kernel Features: OLTP performance.

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