How to Create Check Constraints in Postgresql with Conditions and CASE Statements

Using CAST Functions and Direct Conversions to Cast Character Values in SQL

Understanding Concurrent Inserts and Versioning in PostgreSQL: A Safer Approach to Handling Simultaneous Updates.

Understanding PostgreSQL Views: Why Ordering is Ignored in View Creation

Mastering PostgreSQL's AGE() Function: Workarounds for the WHERE Clause Limitation

Understanding Functional Dependencies in Postgres: Limitations and Best Practices for Database Design

Converting VARCHAR Date to Date Type in Postgres: How to Fix Invalid Dates with SQL Manipulation Techniques

Understanding PostgreSQL Query Execution Times: A Deep Dive into JSON Response Metrics

Based on the provided specification, I will create a complete response that meets all the requirements. Here is the final answer:

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