Error Conectando Delphi con MYSQL

[Carlillus]

Muchas Gracias Neftali [Germán.Estévez] En el enlace tuyo esta la solución (no me permiten agregar enlaces) Efectivamente era un problema de compatilidad con las versiones MySQL y RAT Studio y con descargar esta libreria y copiarla en C:\Program Files\Embarcadero\Studio\19.0\bin asegurandote de abrir RAT Studio, Apagas y Reinicias el Servicio MySQL.

Texto citado:
To get a 5.1.XX compatible DLL you will need to download an achieved mysql complete installation zip and extract the DLL as no compatible versioned MYSQL C Connector package could be downloaded when I looked.

To save you some time I added ... containing the win32 x86 libmysql.dll for those who wish to download.

This is libmysql.dll version 5.1.59 win32 x86 DLL which I have tested and works with both XE and XE2.