Kellyn Gorman • 7/18/2025

PostgreSQL for the Oracle DBA, Part 6: Tuples, MVCC, and Two Views

Read Original

This technical article explores the core architectural differences in how PostgreSQL and Oracle handle rows and MVCC. It details PostgreSQL's tuple structure, append-only update model requiring VACUUM, and contrasts it with Oracle's in-place updates, undo records, and SCN-based visibility control, aimed at database administrators.

0 comments
#database #oracle #concurrency
PostgreSQL for the Oracle DBA, Part 6: Tuples, MVCC, and Two Views

Comments

No comments yet

Be the first to share your thoughts!

Browser Extension

Get instant access to AllDevBlogs from your browser

Top of the Week

1
React, useEffect, and Stale Closures: How to Avoid Them with Dependencies and useRef
Jivbcoop • 4 votes
2
Better react-hook-form Smart Form Components
Maarten Hus • 2 votes
3
AGI, ASI, A*I – Do we have all we need to get there?
John D. Cook • 1 votes
4
Quoting Thariq Shihipar
Simon Willison • 1 votes
5
Dew Drop – January 15, 2026 (#4583)
Alvin Ashcraft • 1 votes
6
Using Browser Apis In React Practical Guide
Jivbcoop • 1 votes