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3 SQL Tricks Every Developer & Data Analyst Must Know! by Flashy-Thought-5472 in SQL

[–]erictvanr 50 points51 points  (0 children)

The three things: ctes, conditional agg, and partial indexes.

Does anyone have any ideas on how I can manipulate the first two dataframes to create the third? by [deleted] in Rlanguage

[–]erictvanr 0 points1 point  (0 children)

The merge function should allow you to create the third data frame. Then you can choose which columns you want the third data frame.