Explores the various uses of the DISTINCT keyword in PostgreSQL, including DISTINCT ON, with practical SQL examples.
Explores optimizing Django ORM queries to avoid the N+1 problem when dealing with Postgres joins and complex model relationships in APIs.
A guide to effectively testing Java repository layers, focusing on database setup, using H2 and PostgreSQL, and ensuring production-like environments.
A technical appreciation of OBIEE's BI Server, highlighting its powerful data modeling, query handling, and federation capabilities.
Tips and best practices for writing clean, readable, and maintainable SQL code, including formatting, CTEs, and commenting.
A developer shares 10 essential PostgreSQL features and tips for 2016, including CTEs, performance tuning, and configuration.
Explores how MongoDB's BI Connector pushes SQL WHERE clauses and projections down to the database as an aggregation pipeline for efficient querying.
Part 3 of a series on building Stack Overflow's tag engine, focusing on implementing complex boolean queries using bitmap indexes and compression.
Explains why SQL Server's dm_exec_query_plan returns NULL for stored procedures with conditional logic and temp tables, and how to diagnose it.
Introduction to Drupal performance tuning, focusing on database optimization, query analysis, and monitoring tools for better web application speed.
Explains how to use PostgreSQL's CTEs (WITH clauses) to write more readable, composable, and maintainable SQL queries.
Analyzing MongoDB query performance using $exists operator and the impact of indexes on large datasets.
A guide to using EXPLAIN and EXPLAIN ANALYZE in PostgreSQL, including JSON output and visualization tools for query execution plans.
A collection of practical tips and guides for effective indexing in PostgreSQL, covering unused indexes, costs, and performance considerations.
A developer shares common SQL bad habits like using column numbers in ORDER BY, implicit joins, and lacking comments, with examples and better practices.
A developer shares his preferred method for working with PostgreSQL, advocating for the psql command-line tool and sharing key tips and configurations.
A guide to optimizing PostgreSQL queries using pg_stat_statements, focusing on analyzing query performance and improving indexes.
A developer shares his approach to writing clean, readable SQL with practical examples and best practices for structuring queries.
A guide for developers on monitoring and improving PostgreSQL database performance, covering cache hit rates and index usage.
Explains when to use temporary tables instead of table variables in SQL Server for significant query performance improvements.
