How to Use Aggregate Functions in SQL for Data Analysis
When we start working with data, individual rows rarely give us meaningful answers. Looking at one ...
Tag: ETL
How to Sort Results with ORDER BY in SQL for Data Analysis
Have you ever written a SQL query, looked at the results, and felt something was off—not because th...
How to Select Specific Columns in SQL?
When you start learning SQL, one of the first habits you pick up is using SELECT *. It works, and i...
ETL vs Data Pipelines | Diffrence between ETL and data pipeline
If you're new to data analytics, you've probably noticed something confusing. The terms ETL and dat...
ETL with Excel: When and How to Use It Effectively
If you're picking up data analysis, there's probably an Excel spreadsheet already sitting open on y...
ETL Using SQL | Transforming Data with Real Queries
When you start learning data analysis, SQL often feels like a powerful but slightly intimidating to...
ETL in Power BI Using Power Query with examples
If you are new to data analysis, Power BI probably feels exciting and confusing at the same time. Y...
How ETL Supports Accurate Dashboards and KPIs
Ever stared at a dashboard, felt good about the numbers... then the next day, everything’s differen...
Role of ETL in Business Intelligence and Reporting
Have you ever opened a dashboard, nodded at the numbers, and thought, “Okay… but can I really trust...
Batch ETL vs Real-Time ETL: Key Differences Explained
You're building a data pipeline, and someone asks: "Should this run in batches or real-time?" If...