Use sorted ports to sort column data in a customized data object or relational data object instance. When you use the data object as a read transformation in a mapping or mapplet, you can pass the sorted data to transformations downstream from the read transformation.
Open the customized data object or relational data object instance.
Select the
Read
view.
The following figure shows the
Read
view of a customized data object that is open in the editor:
Select the Output transformation.
Select the
Query
properties.
Select the simple query.
Click
Edit
next to the
Sort
field.
The
Sort
dialog box appears.
To specify a column as a sorted port, click the
New
button.
Select the column and sort type, either ascending or descending.