Hello,
I am very new to coding, and quite efficient in excel so I am trying to learn coding. I have a table like below in google sheets.
Result should be as
Able to make unique lists
But stuck at duplicate count and value in dynamic view.
Plz guide if u can …
First of all welcome to Koding not Coding 
All your id must be unique just use for each number in list block found in controls section
Taifun
3
you can use SQLish commands together with the Google Viusalization API, see also App Inventor Tutorials and Examples: Google Spreadsheet Database | Pura Vida Apps see also the detailed guide by TimAI2 here
Taifun
1 Like
@Shailesh_Dhoot , may be this one helpful to you. You can use the same method as suggested in this post.