<?xml version="1.0" encoding="UTF-8"?>
<rss xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:taxo="http://purl.org/rss/1.0/modules/taxonomy/" version="2.0">
  <channel>
    <title>topic The Hardest Part of Our SAP Migration Wasn't the Data. It Was Timing in Community Articles</title>
    <link>https://community.databricks.com/t5/community-articles/the-hardest-part-of-our-sap-migration-wasn-t-the-data-it-was/m-p/158545#M1253</link>
    <description>&lt;P&gt;Part 2 of my series on building an enterprise data platform on Databricks — this one's about Silver.&lt;/P&gt;&lt;P&gt;Part 1 covered why we ran two ingestion paths in parallel (GoldenGate CDC + JDBC batch) and kept them as separate bronze tables. If you missed it:&lt;BR /&gt;&lt;A href="https://medium.com/@savlahanish/why-we-used-two-bronze-tables-instead-of-one-and-why-it-mattered-9c4b1e81557c" target="_blank"&gt;https://medium.com/@savlahanish/why-we-used-two-bronze-tables-instead-of-one-and-why-it-mattered-9c4b1e81557c&lt;/A&gt;&lt;/P&gt;&lt;P&gt;Part 2 is where it got harder.&lt;/P&gt;&lt;P&gt;When both Bronze tables exist simultaneously, you inevitably end up with the same logical record in two places — captured differently, timestamped differently, and neither timestamp is fully reliable on its own.&lt;/P&gt;&lt;P&gt;Three things this covers that most CDC tutorials don't:&lt;/P&gt;&lt;P&gt;→ The 5-minute overlap window where _ingest_time alone gives you the wrong answer - and the tiebreaker we added to fix it&lt;/P&gt;&lt;P&gt;→ How CDC DELETE events silently keep deleted SAP records alive in Silver if you don't handle them explicitly in your MERGE statement&lt;/P&gt;&lt;P&gt;→ The natural key mistake we made on one table - only caught when a business analyst noticed transaction counts in Silver didn't match SAP&lt;/P&gt;&lt;P&gt;Full post:&amp;nbsp;&lt;A href="https://medium.com/@savlahanish/the-hardest-part-of-our-sap-migration-wasnt-the-data-it-was-timing-e30e59ca6136" target="_blank"&gt;https://medium.com/@savlahanish/the-hardest-part-of-our-sap-migration-wasnt-the-data-it-was-timing-e30e59ca6136&lt;/A&gt;&lt;/P&gt;&lt;P&gt;Has anyone else hit timing issues during the initial load window on a similar migration?&lt;BR /&gt;Curious how others handled the overlap period between snapshot and streaming.&lt;/P&gt;</description>
    <pubDate>Mon, 08 Jun 2026 10:26:05 GMT</pubDate>
    <dc:creator>savlahanish27</dc:creator>
    <dc:date>2026-06-08T10:26:05Z</dc:date>
    <item>
      <title>The Hardest Part of Our SAP Migration Wasn't the Data. It Was Timing</title>
      <link>https://community.databricks.com/t5/community-articles/the-hardest-part-of-our-sap-migration-wasn-t-the-data-it-was/m-p/158545#M1253</link>
      <description>&lt;P&gt;Part 2 of my series on building an enterprise data platform on Databricks — this one's about Silver.&lt;/P&gt;&lt;P&gt;Part 1 covered why we ran two ingestion paths in parallel (GoldenGate CDC + JDBC batch) and kept them as separate bronze tables. If you missed it:&lt;BR /&gt;&lt;A href="https://medium.com/@savlahanish/why-we-used-two-bronze-tables-instead-of-one-and-why-it-mattered-9c4b1e81557c" target="_blank"&gt;https://medium.com/@savlahanish/why-we-used-two-bronze-tables-instead-of-one-and-why-it-mattered-9c4b1e81557c&lt;/A&gt;&lt;/P&gt;&lt;P&gt;Part 2 is where it got harder.&lt;/P&gt;&lt;P&gt;When both Bronze tables exist simultaneously, you inevitably end up with the same logical record in two places — captured differently, timestamped differently, and neither timestamp is fully reliable on its own.&lt;/P&gt;&lt;P&gt;Three things this covers that most CDC tutorials don't:&lt;/P&gt;&lt;P&gt;→ The 5-minute overlap window where _ingest_time alone gives you the wrong answer - and the tiebreaker we added to fix it&lt;/P&gt;&lt;P&gt;→ How CDC DELETE events silently keep deleted SAP records alive in Silver if you don't handle them explicitly in your MERGE statement&lt;/P&gt;&lt;P&gt;→ The natural key mistake we made on one table - only caught when a business analyst noticed transaction counts in Silver didn't match SAP&lt;/P&gt;&lt;P&gt;Full post:&amp;nbsp;&lt;A href="https://medium.com/@savlahanish/the-hardest-part-of-our-sap-migration-wasnt-the-data-it-was-timing-e30e59ca6136" target="_blank"&gt;https://medium.com/@savlahanish/the-hardest-part-of-our-sap-migration-wasnt-the-data-it-was-timing-e30e59ca6136&lt;/A&gt;&lt;/P&gt;&lt;P&gt;Has anyone else hit timing issues during the initial load window on a similar migration?&lt;BR /&gt;Curious how others handled the overlap period between snapshot and streaming.&lt;/P&gt;</description>
      <pubDate>Mon, 08 Jun 2026 10:26:05 GMT</pubDate>
      <guid>https://community.databricks.com/t5/community-articles/the-hardest-part-of-our-sap-migration-wasn-t-the-data-it-was/m-p/158545#M1253</guid>
      <dc:creator>savlahanish27</dc:creator>
      <dc:date>2026-06-08T10:26:05Z</dc:date>
    </item>
  </channel>
</rss>

