what is collation in sql code example

Example 1: what is sql

Structured Query Language

A language which enables a user to create, modify and
essentially interact with a database.
Two of the most common Database Management Engines are
MySQL: https://www.mysql.com/
PostgreSQL: https://www.postgresql.org/

Example 2: mysql collation for all languages

utf8_general_ci

Example 3: collation in sql

Collation is defined as a set of rules
that determine how data can be sorted as
well as compared. Character data is sorted
using the rules that define the correct
character sequence along with options for 
specifying case-sensitivity, character width etc.