dbt - Incremental Models
Which incremental strategy in dbt only adds new rows without modifying existing ones?
Which incremental strategy in dbt only adds new rows without modifying existing ones?
easy📝 Conceptual Q11 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the append strategy
The append strategy adds only new rows to the existing table without changing any existing data.Step 2: Compare with other strategies
Merge updates existing rows and adds new ones; delete+insert replaces matching rows; truncate removes all data first.Final Answer:
append -> Option CQuick Check:
append = add new rows only [OK]
Quick Trick: Append means add new rows only, no updates [OK]
Common Mistakes:
MISTAKES- Confusing merge with append
- Thinking delete+insert only adds rows
- Assuming truncate is an incremental strategy
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