Improving Database Functions: Combining Insert and Select Statements for Efficiency and Readability

Optimizing Indexing Queries in PostgreSQL: A Step-by-Step Guide to Creating Compound Indexes for Better Performance

crosstab Using Tablefunc Extension for Complex Data Transformation in PostgreSQL

Understanding SQL Query Dependencies for Optimized Database Performance

Eliminating Duplicate Rows in PostgreSQL Join Operations Using GROUPING SETS and DISTINCT

Iterating Through Customers on a 12-Months-Rolling Basis: Two Approaches to Simplify Your Queries

The Impact of Synthetic Primary Keys on SQL Query Performance: Weighing Benefits Against Drawbacks

Using Subqueries with Country Codes: Why "country_code" Matters in SQL Queries

Working with JSONB Arrays in PostgreSQL: A Deep Dive Into Array Functions, Unnesting, Filtering, and Indexing

Understanding PostgreSQL Transaction Rollbacks and Trigger Execution