You can use any special character that is not part of your data. like '|' for a delimiter. But make sure, you get your raw data in that format. (like fields terminated by some special character (Control A which is default) and lines terminated by another special character) when you generate this raw data.
Another option is if you are using sqoop to import this data, you can explicitly drops delimiters that are part of the data. (--hive-drop-import-delims and --hive-delims-replacement)