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# About the Interleaved Merge Function

Through the Interleaved Merge Function dialog box a function may be created that takes data from two or more different source nodes in the Data Input panel and merges them sequentially so that the first occurrence of data in the first node is combined with the first occurrence of data in the second node, to create one occurrence in the mapped destination node in the Tool Input Panel.

This repeats for the second and subsequent occurrence of data in the source nodes until all occurrences have been merged.

So, if there are two source nodes, the first with three records and the second with two then the destination node will contain three records (one with null results in some elements).

The dialog box is displayed by either double-clicking on the icon in the Functions Pane or dragging and dropping the icon from the Functions Pane onto the Mapping and Functions Panel and then double-clicking on the icon. It contains the three tabbed panes listed below through which a function may be configured:

|  | Function Name — A name for the function may be manually entered.

|  | Tabbed Panes — The dialog box includes the three tabbed panes listed below. Click on a link for further details.

|  | Inputs

|  | Output

|  | Options

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