Date Arithmetic with date_add() and date_sub()

How do we calculate invoice due dates (+30 days) and automated reminders (-3 days) in PySpark?

Intermediate⏱ 3 Minutes⭐ 390 XP

🤔 THE QUESTION

How do we calculate invoice due dates (+30 days) and automated reminders (-3 days) in PySpark?

💡 WHAT IS IT?

date_add(col, days) and date_sub(col, days) add or subtract an integer number of days from a DateType Column.

🎯 WHAT IS IT USED FOR?

Subscription renewal dates, billing cycles, SLA breach deadlines, and churn warning triggers.

💻 EXAMPLE

from pyspark.sql.functions import col, date_add, date_sub

df = df.withColumn("due_date", date_add(col("order_date"), 30)) \
       .withColumn("reminder_date", date_sub(col("order_date"), 3))

🎯 Mission Objectives

Practice typing production-grade PySpark code for Date Arithmetic with date_add() and date_sub().

✓ Import date_add and date_sub
✓ Add 30 days for due date
✓ Subtract 3 days for reminder notification

🚀 Start Mission

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