How to Correctly Create a Calculated Column in SQL Using CASE Statement and Avoid Syntax Errors

Comparing Values Following Each Other in Pandas DataFrames: A Two-Pronged Approach Using Duplicated and Shift

Optimizing Varying Calculations in SQLite: A Comparative Analysis of Conditional Aggregation, TOTAL(), and FILTER Clauses.

Creating a New Column in Pandas Using Logical Slicing and Group By by Different Columns