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What does a snapshot table in dbt primarily help you track?

easy🧠 Conceptual Q1 of 15
dbt - Advanced Patterns
What does a snapshot table in dbt primarily help you track?
AChanges in data over time for historical analysis
BReal-time streaming data updates
CTemporary data during model runs
DData schema changes only
Step-by-Step Solution
Solution:

  1. Step 1: Understand the purpose of snapshot tables

    Snapshot tables store historical versions of data to track changes over time.

  2. Step 2: Compare options to snapshot purpose

    Only Changes in data over time for historical analysis describes tracking data changes historically, which is the main use of snapshots.

  3. Final Answer:

    Changes in data over time for historical analysis -> Option A

  4. Quick Check:

    Snapshot purpose = Track historical changes [OK]
Quick Trick: Snapshots keep history of data changes over time [OK]
Common Mistakes:
MISTAKES
  • Confusing snapshots with real-time data streams
  • Thinking snapshots track only schema changes
  • Assuming snapshots are temporary tables

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