Target load order constraints restrict the order that the Data Integration Service loads rows to target tables in the same mapping. Create target load order constraints on the
Load Order
tab of a mapping.
Click inside the editor.
The mapping
Properties
tabs appear in the bottom window.
Click the
Load Order
tab.
The following image shows the
Load Order
tab:
The image shows three constraints. Each constraint contains the primary target and the secondary target. The constraints specify that the Data Integration Service must load the Customer_Master target before the Customer_Orders target. The Sales_Rep_Master must load before the Customer_Orders target. The Sales_Office_Master must load before the Sales_Rep_Master.
To enter a constraint, click the
New
button.
The Developer tool creates a row for the constraint.
Click the
Primary
field.
A list of the target instances in the mapping appears.
Select the target instance that you want to load first.
In the
Secondary
field, select the target instance to load second.
You can enter the constraints in any order. You could enter the following pairs of constraints to indicate the same restrictions as in the previous image: