function FunctionByName(const Value: String): TDBISAMFunction

Usage

Call the FunctionByName method to locate a specific custom function definition by the name of the custom function. If a custom function definition is found with the same name, a reference to the function definition is returned, otherwise an exception is raised. The search against the function names is case-insensitive. The FunctionByName method is essentially a wrapper around the FindFunction method that raises an exception if the FindFunction method returns nil.