About this Bonus Module关于此加分模块

This module covers some advanced SQL techniques that will be useful for Data Engineers. In this module, you will learn how to build more powerful queries with advanced SQL techniques like views, transactions, stored procedures, and joins.
本模块涵盖了对数据工程师有用的某些高级 SQL 技术。在本模块中，您将学习如何使用视图、事务、存储过程和连接等高级 SQL 技术构建更强大的查询。

If you are following the Data Engineering track, you must complete this module. Completing this module is not required for those completing the Data Science or Data Analyst tracks However, you are free to complete this if you are interested.
如果您正在学习数据工程师方向，您必须完成此模块。对于正在完成数据科学或数据分析师方向的人来说，完成此模块不是必需的。但是，如果您有兴趣，可以自由完成。