How to Fix “Unknown Collation: utf8mb4_0900_ai_ci” Error in MySQL (Resolved Guide)
The collation utf8mb4_0900_ai_ci is a character set collation for MySQL databases, introduced in MySQL 8.0.1. It is based on the Unicode Collation Algorithm (UCA) 9.0.0, and the character set is utf8mb4, which supports a wide range of Unicode characters. The “ai” in the collation name stands for “accent insensitive” and the “ci” stands for “case…