Kellyn Gorman continues a series on PostgreSQL for Oracle DBAs:
After our first two weeks of ensuring Grant and I didn’t burn down SQLServerCentral figuring out how Steve Jones has kept the pace he has for so long, (quite an impressive feat, I think we’d both agree!) I’m back to working with my comparisons and building more knowledge in PostgreSQL. What caught my attention this week was the simple concept of a row (or tuple) which might seem universal in relational systems, after all, data is data no matter the platform, right? But under the hood, the way databases store, manage, and control visibility of that data can differ drastically. This is especially true when comparing PostgreSQL with how Oracle manages rows.
Read on to learn more about how these systems work.