Elasticsearch Queries – Part 1: Queries and Filters
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Elasticsearch Queries – Part 1: Queries and Filters

When I first got to know Elasticsearch, I told myself: “Well, this is just another database… right?”But I was wrong. Elasticsearch is actually different. It kind of feels like a mix between a search engine and a database.To be honest, I’m still not very comfortable with it myself 🙂But in this post—which is the first…

My Favorite Python Libraries for Fast Data Exploration

My Favorite Python Libraries for Fast Data Exploration

Let me be honest: when I sit down with a fresh dataset, I’m not looking for ceremony. I’m looking for clarity. That first hour matters more than most people admit. I want to get a feel for the terrain—what’s messy, what’s surprising, what’s worth digging into. If I can’t answer “what’s going on here?” in…

cleaned data warehouse

Is Your Data Warehouse a Mess? Here’s a Practical Path to Clean It Up

One of the most common issues in many organizations and data teams is a messy and disorganized Data Warehouse. This problem usually develops over time due to rapid team growth, evolving analytics needs, onboarding new members without proper documentation, and an increase in temporary projects. The result? A chaotic data warehouse with inconsistent structures, duplicate…

data backup strategy

From Crisis to Stability: Backing Up and Protecting Data in Times of Peace

A few weeks ago, in the chaos of war and crisis, I talked to you about the importance of backups. From pg_dump and mysqldump to mongoexport and rsync; about how we can prevent data loss during critical situations. Now that things have calmed down a bit, it’s time to revisit the topic. In the previous…

مدل سازی دیتا

Key Principles of Data Modeling: A Roadmap to Success in the Big Data Era

Data is the lifeblood of organizations. Yet, throughout my career, I’ve often encountered the reality that having data alone isn’t enough. What truly matters is how we organize and effectively use that data. This is where the art and science of data modeling come into play. Data modeling isn’t just a technical process—it’s a deep,…

waste money

How Small Businesses Waste Money Without Knowing

Let’s be real. Running a small business is no joke. You’re juggling sales, customer satisfaction, team morale, and a thousand other spinning plates. Every dollar counts. And yet—you might be leaking money without even realizing it. I’m not talking about the obvious stuff like bad hiring or over-ordering inventory. I’m talking about subtle, silent budget…