Loop in Mysql for PDI

Hi,

My requirement is I have to fetch couple of fields from the source system database to ETL database using some loop condition. How can I implement this in Pentaho. I am new to Pentaho.


Loop in the sense, I am going to get a field from current selected row and again I am using that field value to get another record from the same table and this will continue till n iteration.


I can not build the loop in SQL command line without using stored procedure to load the data into ETL.

Please help