Understanding PostgreSQL SUBSTRING function

SQL Substring function overview

MySQL substring() function - w3resource

Substring in Java: Examples, Methods and Applications

String Methods for Character Extraction in Java

String Searching Methods in Java

JavaScript Substring Examples - Slice, Substr, and Substring Methods in JS

PowerShell et Substring : extraire une chaîne d’une chaîne | IT-Connect

SUBSTRING, PATINDEX and CHARINDEX string functions in SQL queries