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POHow can I assign a shared foreign key to all records inserted using the Data Load Wizard?
 

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  1. POHow can I assign a shared foreign key to all records inserted using the Data Load Wizard?
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    <p>I have an ApEx application which, amongst other purposes, has a requirement to upload billing data provided by telecommunications providers. The data is being provided as a CSV file.</p> <p>We have two tables. The first table, <code>phone_invoice</code>, contains per-invoice metadata such as billing dates and provider name. The second table, <code>phone_invoice_detail</code> is based largely on call logs.</p> <p><code>phone_invoice_detail</code> has a foreign key, <code>invoice_id</code>, which keys into <code>phone_invoice(id)</code>. This creates a stock-standard master-detail relationship.</p> <p>We have used the ApEx Data Load Wizard to set up the import capability for our users. But I need to assign the <code>invoice_id</code> to each imported row.</p> <p>Currently, I have a Phone Invoice page. Users click a button, "Import Data for Invoice", which branches to the Data Load Wizard and sets a page item, <code>P1000_INVOICE_ID</code> with the value of that invoice ID -- <code>P999_ID</code>.</p> <p>When the user begins the process, the CSV data supplied has all the fields <em>except</em> for an invoice ID. What I want is for that column in the underlying table -- <code>invoice_id</code> -- to be set to to the value of <code>P1000_INVOICE_ID</code>.</p> <p>My current focus is on using the Transformation Rules. This has been tremendously frustrating because the documentation tells you nothing about them and there are no examples.</p> <p>Permutations I have tried:</p> <pre><code>-- PL/SQL Expression: :INVOICE_ID := :P1000_INVOICE_ID :INVOICE_ID := :P999_ID SELECT :P1000_INVOICE_ID INTO :INVOICE_ID FROM DUAL SELECT :P999_ID INTO :INVOICE_ID FROM DUAL -- Replace: -- Expression 1 Expression 2 :P1001_INVOICE_ID :INVOICE_ID :P999_INVOICE_ID :INVOICE_ID </code></pre>
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