1.适用于PolarDB的阿里云ApsaraDB：
它是与MySQL，PostgreSQL和Oracle兼容的云原生关系数据库。 ApsaraDB体系结构在单个群集中支持5000台物理机。它是为需要快速性能，高并发性和自动伸缩的关键业务数据库应用程序而设计的。
2.阿里云MaxCompute：
它以前称为ODPS，是用于大规模数据仓库的通用，完全管理的多租户数据处理平台。它用于存储和计算批量结构化数据。它提供了广泛的数据仓库解决方案以及大数据分析和建模服务。适用于PolarDB的阿里云ApsaraDB和阿里云MaxCompute之间的区别：
| S.NO. | Alibaba Cloud ApsaraDB for PolarDB | Alibaba Cloud MaxCompute |
|---|---|---|
| 1. | It was developed by Alibaba in August 2013. | It was developed by Alibaba in 2016. |
| 2. | It is a cloud-native relational database compatible with MySQL, PostgreSQL, and Oracle. | It is a general purpose, fully managed, multi-tenancy data processing platform for large-scale data warehousing. |
| 3. | In Alibaba Cloud ApsaraDB for PolarDB there are hosted server operating systems. | In Alibaba Cloud MaxCompute there are hosted server operating systems. |
| 4. | The license of Alibaba Cloud ApsaraDB for PolarDB is commercial. | The license of Alibaba Cloud MaxCompute is also commercial. |
| 5. | It supports XML format. | It does not support XML format. |
| 6. | It supports the Server-side scripting. | It supports user defined functions based Server-side scripting. |
| 7. | There is only one partitioning method – Sharding. | It also support partitioning methods. |
| 8. | It supports SQL query language. | It supports SQL-like query language. |
| 9. | It supports replication methods. | It also supports replication methods. |
| 10. | ApsaraDB for PolarDB provides the concept of Referential Integrity. Hence, there are Foreign Keys. | MaxCompute does not provide the concept of Referential Integrity. Hence, no Foreign Keys. |
| 11. | It supports in-memory capabilities. | It does not support in-memory capabilities. |
| 12. | It does not offer any API for user-defined Map/Reduce methods. | It offers an API for user-defined Map/Reduce methods. |
| 13. | It supports ACID properties. | It does not support ACID properties. |
| 14. | Programming languages supported are Java and Python. | Programming language supported is Java. |