📰 Dev.to · Alex Merced
Articles from Dev.to · Alex Merced · 68 articles · Updated every 3 hours · View all reads
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⚡ AI Lessons (9392)
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Dev.to · Alex Merced
1mo ago
Semantic Layer vs. Data Catalog: Complementary, Not Competing
"We already have a data catalog, so we don't need a semantic layer." This is one of the most common...
Dev.to · Alex Merced
1mo ago
Semantic Layer vs. Metrics Layer: What's the Difference?
Both terms appear in every modern data architecture diagram. They're used interchangeably in...
Dev.to · Alex Merced
1mo ago
How to Build a Semantic Layer: A Step-by-Step Guide
Most teams start building a semantic layer the wrong way: they open their BI tool, create a few...
Dev.to · Alex Merced
1mo ago
What Is a Semantic Layer? A Complete Guide
Ask three teams in your company how they calculate "revenue" and you'll get three answers. Sales...
Dev.to · Alex Merced
1mo ago
Data Modeling Best Practices: 7 Mistakes to Avoid
A bad data model doesn't announce itself. It hides behind slow dashboards, conflicting numbers,...
Dev.to · Alex Merced
1mo ago
Data Vault Modeling: Hubs, Links, and Satellites
Dimensional modeling works well when your source systems are stable and your business questions are...
Dev.to · Alex Merced
1mo ago
Denormalization: When and Why to Flatten Your Data
Normalization is the first rule taught in database design. Eliminate redundancy. Store each fact...
Dev.to · Alex Merced
1mo ago
Data Modeling for Analytics: Optimize for Queries, Not Transactions
The data model that runs your production application is almost never the right model for analytics....
Dev.to · Alex Merced
1mo ago
Slowly Changing Dimensions: Types 1-3 with Examples
Dimensions change. A customer moves cities. A product gets reclassified. An employee changes...
Dev.to · Alex Merced
1mo ago
Dimensional Modeling: Facts, Dimensions, and Grains
Dimensional modeling is the most widely used approach for organizing analytics data. Developed by...
Dev.to · Alex Merced
1mo ago
Data Modeling for the Lakehouse: What Changes
Traditional data modeling assumed you controlled the database. You defined schemas up front,...
Dev.to · Alex Merced
1mo ago
Star Schema vs. Snowflake Schema: When to Use Each
Both star schemas and snowflake schemas are dimensional models. They both organize data into fact...
Dev.to · Alex Merced
1mo ago
Conceptual, Logical, and Physical Data Models Explained
Most data teams jump straight from a stakeholder request to creating database tables. They skip the...
Dev.to · Alex Merced
1mo ago
What Is Data Modeling? A Complete Guide
Every database, data warehouse, and data lakehouse starts with the same question: how should this...
Dev.to · Alex Merced
1mo ago
Apache Data Lakehouse Weekly: February 11–17, 2026
Get Data Lakehouse Books: Apache Iceberg: The Definitive Guide Apache Polaris: The Defintive...
Dev.to · Alex Merced
1mo ago
A 2026 Introduction to Apache Iceberg
Apache Iceberg is an open-source table format for large analytic datasets. It defines how data files...
Dev.to · Alex Merced
1mo ago
Apache Data Lakehouse Weekly: February 4-11, 2026
Get Data Lakehouse Books: Apache Iceberg: The Definitive Guide Apache Polaris: The Defintive...
Dev.to · Alex Merced
2mo ago
Apache Data Lakehouse Weekly: January 27 - February 2, 2026
Get Data Lakehouse Books: Apache Iceberg: The Definitive Guide Apache Polaris: The Defintive...
Dev.to · Alex Merced
2mo ago
Your Data Lakehouse Is Passive. Here’s How to Make It Agentic.
Dremio Free 30-Day Trial, Sign-up and experience Agentic Analytics in Minutes Building a modern data...
Dev.to · Alex Merced
2mo ago
Apache Data Lakehouse Weekly: January 20–27, 2026
Get Data Lakehouse Books: Apache Iceberg: The Definitive Guide Apache Polaris: The Defintive...
Dev.to · Alex Merced
2mo ago
What Is Agentic Analytics?
Agentic analytics describes a way to perform analytics using AI agents that act with intent. These...
Dev.to · Alex Merced
2mo ago
Apache Data Lakehouse Weekly: January 15–22, 2026
Get Data Lakehouse Books: Apache Iceberg: The Definitive Guide Apache Polaris: The Defintive...
Dev.to · Alex Merced
2mo ago
Dev List Digest for Apache Iceberg, Parquet, Polaris and Arrow: January 6–14, 2026
Get Data Lakehouse Books: Apache Iceberg: The Definitive Guide Apache Polaris: The Defintive...
Dev.to · Alex Merced
3mo ago
RAG Isn’t a Modeling Problem. It’s a Data Engineering Problem.
Get Data Lakehouse Books: Apache Iceberg: The Definitive Guide Apache Polaris: The Defintive...
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