[Solved] Given this dbt test code snippet, what will be the result if the column user_id contains NULL values? version: 2 models: - name: users columns: - name: user_id tests: - not_null | dbt

dbt - Governance and Collaboration

Given this dbt test code snippet, what will be the result if the column user_id contains NULL values?

version: 2
models:
  - name: users
    columns:
      - name: user_id
        tests:
          - not_null

AThe test will fail because NULL values exist in user_id.

BThe test will pass because NULLs are allowed.

CThe test will be ignored by dbt.

DThe test will cause a syntax error.

Step-by-Step Solution

Solution:

Step 1: Understand the not_null test
This test checks that the specified column has no NULL values.
Step 2: Analyze the presence of NULLs
If user_id contains NULLs, the test will detect them and fail.
Final Answer:
The test will fail because NULL values exist in user_id. -> Option A
Quick Check:
not_null test + NULL values = Fail [OK]

Quick Trick: not_null test fails if any NULL found [OK]

Common Mistakes:

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Given this dbt test code snippet, what will be the result if the column user_id contains NULL values?