>> In my source table am having 2 records which are duplicated, I need to store Duplicate records and Unique records into two different tables… Reverse Engineer above datastores and make sure those are available in your model 2. Create new mapping 3. Drag and drop EMP, Employee_target_1 and Employee_target_2 datastore Drag and drop 2 Aggregate component from component palette Connect output port of Source datastore (EMP) to input port of aggregate component. It will pop-up as follows. Leave it as it and click ok Select Aggregate Component and go to property inspector à General à In Side having clause mention as “count(*) >1” and in side Manual group by clause mention as “EMPNO” and remove all attributes except EMPNO. As shown in below screen Drag and drop the EMP datastore once again and drag and drop Join component into mapping editor from component palette Join Aggregate component 1 to EMP Datastore as “AGGREGATE.EMPNO = EMP.EMPNO” Connect output port of Join component to input port for Target datastore (Employee_target_1). It will pop-up then disable “Create attribute On source” and click ok Now connect output port of Source Datastore (EMP) to input port of Aggregate component 2. It will pop-up, leave it as it and click ok Remove all attributes except “EMPNO” from distinct Component Select Aggregate Component and go to property inspector à General à In Side having clause mention as “count(*) = 1”and in side Manual group by clause mention as “EMP.EMPNO” and remove all attributes except SID Drag and drop Join Component again into mapping editor. Join Aggregate component and EMP1 datastore as above diagram as “AGGREGATE1.EMPNO = EMP.EMPNO Connect output port of join to the input port of target datastore (Employee_target_2) and click ok Your Physical diagram looks like below.. IKM Save and Execute the Mapping .. Duplicate records loaded into Target_1: Unique records loaded into Target_2: ***********Duplicate and Unique records loaded separately *************