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In my Oracle table there are columns with different type. I want to read all columns as number. String str = resultSet.getString("col1"); The problem is that if column in database is defined as number, and value is 0.5 The returned string will be .5 I can not use any other getter like getDecimal and etc. if I use: String str = resultSet.getObject("col1").toString(); I'll get an exception if the value is null.