IF in the SELECT
Last modified: October 10, 2019
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Data School wants a comprehensive post showing how to use IF in the SELECT statement and choose output value based on column values. Please use stack overflow to understand the many variations: https://stackoverflow.com/questions/5951157/if-in-select-statement-choose-output-value-based-on-column-values
The structure of the post should be
- Answer the question simply (provide sql query when appropriate)
- Define example scenario we will be using (use a familiar dataset: facebook friends, Amazon store, Uber riders, etc)
- Provide a small table
- Use images to show what is happening
- link to other Data School pages/images where appropriate (joins, aggregations, subqueries, window functions, case when)
- Demonstrate in detail with SQL
- Recap why this was important to answer the question
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