java.sql.ResultSet getBigDecimal为空时

Question

I'm trying to read from a resultSet a BigDecimal which is null

bean.setAuthorizedAmount(res.getBigDecimal(columnIndex++));

and it's giving the following exception

java.sql.SQLException: Fail to convert to internal representation

Can you suggest the simplest code that could simply map on BigDecimal, whether the column is null or not, for instance as you can do for String?

Hope I was clear enough, thanks in advance.

Answer 1

This is happen when your column data can not be converted to the BigDecimal or any type you are looking for. I think you have started columnIndex from 0 in that case you won't be able to get the exact column you want. It says java is unable to convert data to BigDecimal from the column value.

EDIT :

As stated by Luiggi Mendoza in comment, it would be much better to use column name instead of column index to avoid such problems and yes it increases the readability as well.