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Learning SQL

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Nishtha Nagar

Nishtha Nagar

Calculating Running Total Sum in SQL Using Window Functions — Practice SQL Question

“Without data, you’re just another person with an opinion.” — W. Edwards Deming

Apr 29
Calculating Running Total Sum in SQL Using Window Functions — Practice SQL Question
Calculating Running Total Sum in SQL Using Window Functions — Practice SQL Question
Apr 29
Pinned
Zach Quinn

Zach Quinn

Why Your BigQuery SQL Query Will Or Won’t Run

Delve into the subtle technical and situational factors that determine whether your SQL query runs, stalls or fails.

Apr 15
Blurry runner in action.
Blurry runner in action.
Apr 15
Pinned
Satyam Sahu

Satyam Sahu

SQL vs NoSQL: When to Choose MongoDB Over Traditional Databases

Understand When NoSQL Databases Like MongoDB Win the Game — with Real-World Examples and Beginner-Friendly Explanations

Apr 15
1
file name: sql vs nosql.png <meta name=”description” content=”Confused between SQL and NoSQL? Discover when MongoDB outshines SQL with real-world use cases, practical coding tips, and beginner-friendly explanations.”>  <meta name=”keywords” content=”MongoDB, SQL, NoSQL, MongoDB use cases, MongoDB vs MySQL, database design, real-time databases, scalable databases”>  <meta name=”author” content=”Satyam Sahu”>
file name: sql vs nosql.png <meta name=”description” content=”Confused between SQL and NoSQL? Discover when MongoDB outshines SQL with real-world use cases, practical coding tips, and beginner-friendly explanations.”>  <meta name=”keywords” content=”MongoDB, SQL, NoSQL, MongoDB use cases, MongoDB vs MySQL, database design, real-time databases, scalable databases”>  <meta name=”author” content=”Satyam Sahu”>
Apr 15
1
Nishtha Nagar

Nishtha Nagar

Walmart SQL Interview Question with Step-by-Step Solution | Real Interview Experience

SQL interviews aren’t just about syntax — they’re about thinking in steps.”

Apr 20
Walmart SQL Interview Question with Step-by-Step Solution | Real Interview Experience
Walmart SQL Interview Question with Step-by-Step Solution | Real Interview Experience
Apr 20
Nishtha Nagar

Nishtha Nagar

Calculating Year-over-Year (YoY) Growth in SQL | Interview Preparation

Apr 17
Calculating Year-over-Year (YoY) Growth in SQL | Interview Preparation
Calculating Year-over-Year (YoY) Growth in SQL | Interview Preparation
Apr 17
Satyam Sahu

Satyam Sahu

How I Achieved Zero Downtime in Advanced SQL Data Migrations Using PostgreSQL and Python

Learn how to migrate databases smoothly without disrupting live applications

Feb 23
Blog cover image showing a penguin flying with the help of rotor blades and migrating from one place to another. Learn how to perform SQL data migrations with zero downtime. Master logical replication, rollback strategies, and Python automation for seamless transitions. SQL data migration | PostgreSQL migrations | Zero downtime database upgrade | Logical replication PostgreSQL | Data consistency in SQL | Python for SQL migrations | Rollback strategies in SQL.
Blog cover image showing a penguin flying with the help of rotor blades and migrating from one place to another. Learn how to perform SQL data migrations with zero downtime. Master logical replication, rollback strategies, and Python automation for seamless transitions. SQL data migration | PostgreSQL migrations | Zero downtime database upgrade | Logical replication PostgreSQL | Data consistency in SQL | Python for SQL migrations | Rollback strategies in SQL.
Feb 23
Rui Carvalho

Rui Carvalho

Lifecycle of Write and Read Queries: Understanding Apache Iceberg’s Table Format

What I Learned from Chapter 3 of Apache Iceberg: The Definitive Guide

Feb 20
Lifecycle of Write and Read Queries: Understanding Apache Iceberg’s Table Format
Lifecycle of Write and Read Queries: Understanding Apache Iceberg’s Table Format
Feb 20
Crafting-Code

Crafting-Code

How to Optimize SQL Queries for Data Science Workflows

Make Queries Faster, Smarter, and More Efficient

Feb 14
1
SQL Query Optimization for Data Science | Faster SQL Queries for Big Data | Efficient SQL Performance Tuning | Data Science SQL Best Practices
SQL Query Optimization for Data Science | Faster SQL Queries for Big Data | Efficient SQL Performance Tuning | Data Science SQL Best Practices
Feb 14
1
Alessandro Pizzini

Alessandro Pizzini

The SQL Techniques I Use the Most as a Data Engineer (And Why They Matter)

Photo by Luca Bravo on Unsplash

Feb 1
The SQL Techniques I Use the Most as a Data Engineer (And Why They Matter)
The SQL Techniques I Use the Most as a Data Engineer (And Why They Matter)
Feb 1
Alessandro Pizzini

Alessandro Pizzini

Master SQL for Free on GCP BigQuery with Real-World Data

Photo by Aron Visuals on Unsplash

Jan 31
Master SQL for Free on GCP BigQuery with Real-World Data
Master SQL for Free on GCP BigQuery with Real-World Data
Jan 31
Learning SQL

Focused on helping you learn SQL

Editors

Andreas Martinson

Andreas Martinson

Co-Founder & CEO @ Basejump AI LinkedIn: https://www.linkedin.com/in/andreasmartinson/ Company website: https://basejump.ai/

Zach Quinn

Zach Quinn

Journalist—>Sr. Data Engineer; new stories weekly.

Learning SQL Editors

Learning SQL Editors

Highlighting articles related to SQL to help you in your data career

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