Session-07/11 : UNDERSTANDING UNDO, BUFFER CACHE and DBWR | ORACLE DB ARCHITECTURE
nK Buffer Cache | Oracle DBA Tutorials for Beginners | RR TECHNOSOFT
2. Introduction to Database Buffer Cache - Oracle Database
Buffer cache: why the 2nd run is 40× faster ⚡ #sql #oracle #shorts
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Last Updated: October 31, 2026
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Summary
Details from Blog : asrblogger.com/database- This video is the introduction to Redo (السلام عليكم يا شباب) لاتنسو + اشترك بالقناة وسوي لايك للفيديو فعل زر الجرس ليصلك كل جديد. Session-07/11 : UNDERSTANDING UNDO, This video helps understand, WHAT db 27. 1st run: 2 seconds ⏳ · 50000 disk reads 2nd run: 0.05 seconds ⚡ · ZERO disk reads Same SQL. 40× faster. Why?