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

Counting Days Between Dates Based on Multiple Conditions in PostgreSQL

SQL Grouping by Column Pairs Without Considering Order

Simplifying Aggregation in PostgreSQL: A Step-by-Step Solution for Customer-Specific Order Prices

Overcoming PostgreSQL's Aggregate Function Restriction in the WHERE Clause: Workarounds and Strategies

Handling Age Ranges in Postgres: A Guide to Efficient Calculations

Working with JSON Data in PostgreSQL: A Deep Dive into Type Casting, Updates, and the jsonb_set Function

SQL Query to Fetch Users Who Ordered Particular Items More Than Once

Understanding PostgreSQL's Row Insertion Mechanism for Efficient Data Management

The Ultimate Showdown: Coalescing vs Row Numbers for Last Non-Null Value