Display only distinct rows - Real's PowerBuilder How-to

Display only distinct rowsTag(s): Datawindow

First you need to Sort() the datawindow based on the columns that need to be distinct. After you apply a Filter(), to filter out the non-distinct rows.

For example, we have a datawindow with a column named prod_id and we want to display only one row for each prod_id.

First we turn off the datawindow redraw function to speed up the operation

dw_1.setredraw(false)

Sort the rows based on the prod_id column

dw_1.setsort("prod_id a")
dw_1.sort()

Define the appropriate Filter

dw_1.SetFilter("IsNull(prod_id[-1]) OR prod_id[-1] <> prod_id")
dw_1.filter()

Finally turn back on the datawindow redraw

dw_1.setredraw(true)