comma separator

[sonysree88]

I have one table like 

Month

Jan

Feb

March

APR

Expected results in text object

Jan, Feb, MArch, APR

How can we ge the textobject with comma sepearated

[pradosh_thakur]

concat(Distinct Month,',')

[yoganantha321]

May be like this

[anushree1 · Accepted solution]

Please check the attched