Question

How can I make this select only the row with “1.4” if result has values “15.2”,”UNK”,”1.4″?

SELECT * FROM tbl WHERE result<4.0

(ideally something that works both for MSSQL and MySQL…)

Here is the ‘result’ column

CREATE TABLE IF NOT EXISTS `tbl` (
  `result` varchar(5) NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8;

INSERT INTO `tbl` (`result`) VALUES ('15.2'),('UNK'),('1.4');

Answer 1

select *
    from tbl
    where 1 = case ISNUMERIC(result + 'e0') 
                   when 1 then case when CAST(result as float) < 4.0 
                                   then 1 
                                   else 0 
                              end 
                   when 0 then 0 
              end