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原创 Coursera SQL for Data Science - Notes

SQL for Data Science - Notes待补充注：同一类编程题型只摘选1~2道做笔记；所有概念题型均不摘选，详见课堂讲义Module 1：Select and Retrieve Data with SQL随堂练习Rtrieve all the data from the tracks tableSelect *From Tracks;DATA: all the dataTABLE: tracks tableReturn the playlist id, and n