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The left panel displays data sets. Any data sets that are already present in the specified repository will be marked with the (existing) label.

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The right panel displays the record types and fields for a group. Any record types or fields that match existing data repository records will be marked with the (matching) label.

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You can choose among the following options to control how new data from the traffic file will extend and/or update existing repository data sets:

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• Replace: Erase existing data then add the new data.
• Merge: Import new data without modifying existing data.
• Update: Update matching records with new data and create new records as needed.
• Overwrite: Update matching records (with matching keys) with new data, do not create any additional records.
  
  

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For a concrete example of how each strategy operates, assume that you have the following existing data set (where CustomerID is the key column):

Also assume that you have new traffic that contains the following data:

Replace

Erases existing data then add the new data.

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Given the example above, replace would result in the following:

Merge

Imports new data without modifying existing data.

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Given the example above, merge would result in the following:

Update

Updates matching records with new data and creates new records as needed.

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Given the example above, update would result in the following:

Overwrite

Updates matching records (with matching keys) with new data, does not create any additional records.

If you import traffic into a new data set, new records will be created even though there are no matching keys.

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Given the example above, overwrite would result in the following:

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Understanding Record Import Options Understanding Record Import Options

Understanding Record Import Options

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