Page Comparison

By the end of this chapter you will be able to:

...

• Add a new Merge Stream to your model, by dragging the icon onto your model pane
• Call this stream Name Channel List Reconciliation 2
• Add an input pipe from Latest Package All Channels, with Name sales
• Drag the following attributes from Latest Package All Channels to Channel List Reconciliation 2:
  • CustomerRef
  • Channel
• Add an pipe from the Database Collector SOURCE_ALL_CHANNELS_LIST to Channel List Reconciliation 2

  • Call this pipe inv

    If you set up a merge directly from an external database table you cannot use CenterView's automated merge builder – therefore, if possible, always load data from external tables into CenterView first, and then merge It is useful to cover the technique of direct merges, however, since sometimes you need to merge from very large external tables

• Set up the grouping attributes on the input pipes:
  • Double click on the pipe sales
    • Go to the Sort/Group tab
    • Press Press Image Modified and drag in CustomerRef and Channel
    • Press Press Image Modified to save your changes
  • Double-click on the pipe inv
    • Go to the Sort/Group tab
    • Press Press Image Modified
    • In the new Grouping Attribute form that pops up:
      • Select the attribute CustomerRef from the drop down list
      • Tick the Group flag
      • Press Image RemovedPress Image Added
    • Add the grouping attribute Channel in the same way
    • Back in the main pipe configuration form, press Image Removedpress Image Added

Now you will complete the configuration of the Merge Stream, using the _key internal variable to write key values into the Stream:

• Double-click on Channel List Reconciliation 2 to open the configuration form
• Double-click the Attribute CustomerRef
  • In the Attribute details form that pops up, update Expression to: _key[1]
    • This writes the first key value into this attribute – if you have a look at one of the merges you created with CenterView's automated merge builder, you will see an expression like this for the grouping attributes
  • Press Image RemovedPress Image Added
  • Double-click the Attribute Channel
  • In the Attribute details form that pops up, update Expression to: _key[2]
    • This writes the second key value into this attribute
  • Press Image RemovedPress Image Added
  • Add an Attribute SalesCheck, and set the Expression to

if (countElements(sales) == 1,
"YES"
,
"NO"
)

...

if (countElements(inv) == 1,
"YES"
,
"NO"
)

• Press Press Image Modified in the main stream configuration form to save your changes
• Update the query in the Database Collector to:

...

• Open the data set you have just generated in Channel List Reconciliation 2
• Press - Select, create or clear a filter
• Press Press Image Modified in the drop-down list that appears
• In the filter details form, press the condition at the top of conditions list that says Where ALL of the following are true
  • From the drop down list select ANY item true
  • The top condition will now say Where ANY of the following are true
• In the second condition in the conditions list:
  • Select SalesCheck
  • Leave the operator as equals
  • In the value field enter: NO
• Add a third condition:
  • Select InvCheck
  • Leave the operator as equals
  • In the value field enter: NO
• Press - Apply the filter without saving
• You will get a list of all non-matched records, that is, all records where the SalesCheck value is NO or the InvCheck value is NO