Understanding the Power of SQL Counts: A Comprehensive Guide to Counting Data in Databases

Optimizing Queries with PostgreSQL's DISTINCT ON Clause: A Simplified Approach to Aggregation and Subqueries

Creating Dummy Data for a Database with Docker: A Step-by-Step Guide

Grouping Sum Results by Custom Date Range with PostgreSQL: Adjusting the Start Time of a Day Range for Financial Reporting

How to Find Profiles with More than 3 Photos but Not in Used Service Table Using SQL's EXISTS and NOT EXISTS Clauses

How to Create a Record in Table A and Assign Its ID to Table B Using PostgreSQL's Common Table Expressions (CTEs)

Understanding PostgreSQL's check Constraint with Null Checking: A Comprehensive Guide

Workaround Strategies for PostgreSQL's RETURNING Clause Limitations When Updating Without ELSE Statement

Creating a SQL Function to Return a Table: A Step-by-Step Guide in PostgreSQL

Understanding OSM Geometry and SRIDs in PostGIS: A Guide to Transforming Coordinates