Calculating Financial Totals with sum()

How do we compute total gross revenue across all transactions using the sum() function?

Intermediate⏱ 2 Minutes⭐ 360 XP

🤔 THE QUESTION

How do we compute total gross revenue across all transactions using the sum() function?

💡 WHAT IS IT?

sum() calculates the total numerical sum across all rows for a target Column.

🎯 WHAT IS IT USED FOR?

Executive financial reporting, revenue tracking, and batch volume monitoring.

💻 EXAMPLE

from pyspark.sql.functions import col, sum

df.select(sum(col("amount")).alias("total_revenue")).show()

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