Hi I have one more doubt in the above inputs
There are four columns ex sl.no,column 1,column2,column3,column4 and having data in three rows like row 1 having data in all columns but In row 2 having data in column1 and column2 only in this case by using above mentioned formula I am not getting extact output could you please help me how to do
I see. You will get missing value whenever there is a missing value in any of the joining columns. To deal with missing values prior to joining you can use Missing Value node. Either replace it with empty string "" or any other value you want. However this will still lead to weird output you probably don’t want so here is another way. Use Column Aggregator node on all columns you want to have in single cell with Concatenate aggregation method, comma as separator and exclude missing values from concatenation. Then apply folowing regex in String Manipulation node to replace every second comma (starting from first) with colon. regexReplace( $YourColumnName$, "([^,]+),([^,]+,?)" ,"$1:$2")
Give it a try and if any issues of questions feel free to ask.