Re: Converting xml to table with optional elements

Andrus Moor wrote
> How to convert xml to table if some elements are optional in xml ?
>
> In XML
>
> /E-Document/Document/DocumentParties/BuyerParty/ContactData/ContactFirstName
> element is optional.
>
> If this is present, code below works OK.
> If ContactFirstName is not present , empty table is returned.
>
> How to extract product code rows if ContactFirstName element is missing ?
> In result ContactFirstName column should have null on other value.

You have to process this in two passes.

First pass you create a table of documents by unnesting the non-optional
Document elements.
Second pass you explode each individual row/document on that table into its
components.

David J.

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