---> Visual C++ Redistributable for Visual Studio is missing. While you should of course first make sure that the library can be found (e.g. by placing it into the same directory as your executable), the usual reason for this problem is that the Visual C++ Redistributable for Visual Studio is missing. It is a prerequirement for libmysql.dll and the MySQL server itself (and a lot of other software), and you need to install this package on the target system.
----> Library MySQL It is a prerequirement for libmysql.dll and the MySQL server itself (and a lot of other software), and you need to install this package on the target system.
----> by Embarcadero https://docwiki.embarcadero.com/RADStudio/Sydney/en/Connect_to_MySQL_Server_(FireDAC)
FireDAC requires one of the following libraries:
1) The LIBMYSQL.DLL client library for connecting to MySQL server. 2) The LIBMYSQLD.DLL embedded server library. See MySQL Embedded server later in this topic. 3) You can take them from a server (details) installation Bin or Lib folders and place them in: 4) a folder listed in your PATH environment variable (for example, <Windows>\SYSTEM32) your application EXE folder. 5) To connect to a 64-bit version of MySQL 8.0 at runtime you need: ...a) LIBMYSQL.DLL. ...b) VS2015 runtime 64-bit. ...c) Two libraries from MySQL MSVC++ Connectors pack of the 8.0 version: ...d) LIBCRYPTO-1_1-x64.DLL. ...e) LIBSSL-1_1-x64.DLL.
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The higher the degree, the greater the respect given to the humblest!RAD 11.3