The result data type and character set are the same as those of the expr1 argument. For example, if the expr1 argument has a data type of VARCHAR CHARACTER SET UNICODE, the result data type is VARCHAR CHARACTER SET UNICODE.
The result data type and character set are the same as those of the expr1 argument. For example, if the expr1 argument has a data type of VARCHAR CHARACTER SET UNICODE, the result data type is VARCHAR CHARACTER SET UNICODE.