Which approach is best?Use materialized='incremental' with is_incremental() filter on sale_date.Run dbt run daily for incremental updates.Run dbt run --full-refresh when you need a full rebuild.What is the main benefit of this approach?

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dbt - Incremental Models

You have a large sales table that updates daily. You want to use dbt incremental models to update only new sales but also occasionally rebuild the entire table to fix data issues. Which approach is best?

Use materialized='incremental' with is_incremental() filter on sale_date.
Run dbt run daily for incremental updates.
Run dbt run --full-refresh when you need a full rebuild.

What is the main benefit of this approach?

AIt always reloads all data, ensuring no data is missed.

BIt saves time by only processing new data daily and allows full rebuilds when needed.

CIt never rebuilds the table, so data issues cannot be fixed.

DIt requires manual deletion of old data before each run.

Step-by-Step Solution

Solution:

Step 1: Understand incremental daily updates
Using incremental materialization with a filter on sale_date loads only new sales daily, saving time.
Step 2: Understand full refresh usage
Running with --full-refresh rebuilds the entire table to fix data issues when needed.
Step 3: Identify main benefit
This approach balances efficiency and data correctness by updating incrementally and allowing full rebuilds.
Final Answer:
It saves time by only processing new data daily and allows full rebuilds when needed. -> Option B
Quick Check:
Incremental + full refresh = efficient and flexible [OK]

Quick Trick: Incremental daily + full refresh occasionally = best practice [OK]

Common Mistakes:

MISTAKES

Thinking full refresh runs every day
Believing incremental never rebuilds data
Assuming manual data deletion is required

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Which approach is best?Use materialized='incremental' with is_incremental() filter on sale_date.Run dbt run daily for incremental updates.Run dbt run --full-refresh when you need a full rebuild.What is the main benefit of this approach?

Step 1: Understand incremental daily updates

Step 2: Understand full refresh usage

Step 3: Identify main benefit

Final Answer:

Quick Check:

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