ashK ashK - 11 days ago 5x
Scala Question

Spark sql to do a excel transpose paste

I have a couple of scenarios to convert multiple rows into comma separated single column and in another scenario I have a comma separated column which I have to insert as multiple rows. I use spark scala.

Scenario 1

Select names from employee where role = 'Engineer'

  1. Mark

  2. Steve

  3. Krishna

I need to convert it as Mark, Steve, Krishna.

Scenario 2

I have the same Mark, Steve, Krishna which I need to insert as 3 rows.

Any help?


For Scenario 2, you can try something like this

select name as value from table union select ename from table 

You will have to make it dynamic though.