Hello Arunkumar,

You cannot call toString method on a NULL value, you can only do it when
there is a real object assigned to the variable (unless Scala or whatever
language you are using has some special treatment for such situation). Try:

while (ds.next()) {
        val row:Row= ds.getRow()
        val column1= row.getValue(0)
        val column2= row.getValue(1)
       if (column1 != null) {
            val column1StrVal = column1.toString
       }
       if (column2 != null) {
            val column2StrVal = column2.toString
       }
}

BTW I also fixed indexes in the getValue calls - there were two times 0. I
hope that helps!

Pozdrawiam / Regards / Med venlig hilsen
Tomasz Guziałek

2015-11-25 5:59 GMT+01:00 Arunkumar Pillai <[email protected]>:

> Hi
>
> I'm using select query to fetch records and my code is as follows
>
>  val connection = DB.getConnection()
>     val dataContext:DataContext =
> DataContextFactory.createJdbcDataContext(connection)
>      var query:Query =
>
> dataContext.query().from("TABLE_NAME").select("COLUMN1").select("COLUMN2").toQuery
>
>
>       val ds:DataSet= dataContext.executeQuery(query)
>
>       while (ds.next()) {
>         val row:Row= ds.getRow()
>         val column1= row.getValue(0).toString
>         val column2= row.getValue(0).toString
>
>       }
>
>
>
> if any of the value is NULL then it breaks there.  Any suggestions or help
> would be highly appreciated.
>

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