How we will update or edit any data on grid Without using CDT.

Hi, Not exactly sure about your requirement but in order to fetch or update data from DB , you must create CDT. Why do you want to update data without using CDT and Whats the goal? Temporarily you can store values in your local variables of the interface.

Hi,

Yes. You can use an inline editable grid to add, update, remove data.

you can use local!variables instead of rule inputs. You can use expression rules to query data inside the editable grid. 

please define your local!variables with the expression rules that fetch the data.

Example:

local!data:{
a!queryEntity(
entity: cons!entityname,
query: a!query(
pagingInfo: a!pagingInfo(
startIndex: 1,
batchSize: 50
)
),
fetchTotalCount: false
).data
} ,

For the data to change when you edit the data from the grid, in your submit button use 

a!buttonWidget(
label: "Submit",
saveInto: {
a!writeToDataStoreEntity(datastorentityconstant , local!data)
},
submit: true

),

 You will find a better answer on the documentation.

follow this link! 

https://docs.appian.com/suite/help/22.2/recipe-add-edit-and-remove-data-in-an-inline-editable-grid.html