Skip to content
Back to Data Analytics
PricingLog in

Data Analytics

Relational joins for analysis

Combine relational tables at the intended grain and check the result for lost or multiplied rows.

With Zoonk, your plan starts at this chapter and fits your schedule.

Build my plan

Start free, no account needed.

Where this chapter sits in the course

Lessons

Chapter 19 of 30 · 7 short lessons · 30 min
  1. 1Join keys and cardinality4 min
  2. 2Join types and unmatched rows4 min
  3. 3Join validation4 min
  4. 4Pre-aggregation before joins4 min
  5. 5Effective-date joins4 min
  6. 6Existence and anti-joins4 min
  7. 7Challenge: Relational joins for analysis6 min

What you'll learn

  • Combine tables using appropriate keys and join types
  • Check joins for lost and multiplied rows
  • Preserve analytical grain in complex joins

Your plan from this chapter

It follows the course from here, at your pace, with reviews before you forget.

Build my plan

Start free, no account needed.