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Walid Djebali

Just sharing my knowledge

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Data / dbt Posted on: 04/08/2025

dbt: Handling Evolving Source Schemas in dbt with Dynamic Column Selection

When working with external data sources (like APIs, third-party tables, or partner feeds), the schema […]

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Data / dbt Posted on: 03/08/2025

dbt: Understanding dbt manifest file structure and documentation

📘 Reusable Documentation Blocks in dbt’s Manifest In dbt, documentation blocks (docs()) are first-class citizens […]

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Data / dbt Posted on: 01/08/2025

dbt: Implement multiple severity-aware log handlers in dbt

🎯 Goal Customize dbt‘s logging so that: 🧱 Step-by-step Implementation ✅ Step 1: Create a […]

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Data / dbt Posted on: 01/08/2025

dbt: Optimizing Cross-Schema Joins in dbt with Schema Caching and Join-Aware Indexes

When working with large data models that reference tables across multiple schemas, performance can become […]

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Data / dbt Posted on: 01/08/202501/08/2025

dbt: Environment-Specific Contract Validation in dbt Using Custom Macros

Here’s a polished and professional English explanation with a concrete example, perfect for your website […]

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Data / dbt Posted on: 01/08/2025

dbt: Flexible Freshness Thresholds in dbt Using Custom Time-Aware Macros

Sure! Here’s a polished and professional English version of your explanation, suitable for a technical […]

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Data / dbt Posted on: 01/08/202501/08/2025

dbt: Atomic swap

“atomic swap” usually means performing a schema rename (or object-level rename) in a way that: […]

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Data / dbt Posted on: 01/08/202501/08/2025

dbt: Blue-green deployments in dbt are, and how using temporary schemas with atomic swaps

🔵🟢 What is Blue-Green Deployment in dbt? In the context of dbt, a blue-green deployment […]

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Data / dbt Posted on: 22/06/2025

dbt: Stratégie de debug par modèles intermédiaires (`debug models`) chaînés avec `ref()`

🎯 Objectif Identifier où et pourquoi des valeurs inattendues apparaissent dans un pipeline dbt en […]

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Data / dbt Posted on: 22/06/2025

dbt: Config-driven masking macros

🧠 Objectif Appliquer des règles de masquage de données (ex: anonymisation, pseudonymisation) automatiquement, en fonction […]

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