A guide to implementing a simple CQRS pattern using raw SQL and Domain-Driven Design (DDD) principles in a .NET Core REST API application.
A quick reference guide for using the KSQL REST API, including curl examples for queries, statements, and runtime statistics.
Identifies three common ActiveRecord usage mistakes in Rails that cause unnecessary SQL queries and slow down application performance.
Explains the importance of transactional DDL in SQL for safe and reliable database schema migrations during application upgrades.
A developer continues their Leetcode streak, solving problems in Python and analyzing performance, including sorting arrays by parity and robot movement.
A database expert reviews their 2018 speaking engagements and blog output, focusing on Columnstore Indexes, Graph Databases, and Batch Execution Mode.
Explains a performance pitfall with Common Table Expressions (CTEs) in PostgreSQL versions 11 and earlier, showing how they can disable query optimization.
A reflection on the challenges and principles of organizing a truly independent tech conference, focusing on community over self-promotion.
Introducing an R package for complex survey analysis using SQL databases via dplyr/dbplyr, with a focus on hexagonal binning algorithms.
A technical guide on enabling and locating MySQL query logs for debugging and monitoring database activity.
Announcement of the Spanish translation of 'SQL Performance Explained' with updates for latest database releases and a refreshed SQL indexing quiz.
Summary of major database trends in Fall 2017, including SQL's resurgence, cloud pricing wars, IBM's renaming controversy, and new releases.
A practical guide outlining essential tools, skills, and practice methods for beginners to start a career in data science.
Explores the various uses of the DISTINCT keyword in PostgreSQL, including DISTINCT ON, with practical SQL examples.
Explores Oracle 12.2's new Property Graph feature for graph analysis within the database, using a practical setup guide.
A tutorial on using Apache Drill to query and analyze JSON files with SQL, using blog analytics as a practical example.
An overview of Postgres Foreign Data Wrappers (FDWs), explaining how to connect and query external data sources directly from PostgreSQL.
A technical guide on configuring Apache Drill's ODBC driver to connect with Oracle Business Intelligence Enterprise Edition (OBIEE) 12c on a Linux environment.
A technical guide on using Google BigQuery to analyze GitHub pull request data, including SQL queries for repository statistics.
Tips and best practices for writing clean, readable, and maintainable SQL code, including formatting, CTEs, and commenting.
