🆚 CDB vs PDB - Key Differences: • CDB → one per Oracle installation, manages all PDBs, holds shared infrastructure • PDB → many per CDB, holds actual business data, fully portable • DBA connects to CDB to manage all databases at once • Developers connect to PDB to work with their specific data 🏛️ Oracle-Specific Facts: • PDB architecture was introduced in Oracle 12c (2013) • Oracle 21c made CDB/PDB the only supported architecture • In Oracle 19c and above - every database you create is technically inside a CDB • Cloud services like Oracle Autonomous Database use PDBs heavily • One CDB can have up to 4096 PDBs in Oracle 19c 🧠 Quick Summary: • CDB = Container Database - the outer shell • PDB = Pluggable Database - self-contained DB inside CDB • CDB$ROOT = master container managing everything • PDB$SEED = read-only template for creating new PDBs • PDBs share memory and processes → saves cost and resources • PDBs can be plugged/unplugged → makes migration easy • Every Oracle 21c database uses this architecture #OracleSQL #PluggableDatabase #PDB #CDB #OracleArchitecture #Oracle12c #LearnSQL #DatabaseAdmin #Day5 #100DaysOfCode #TechTwitter

Using #Oracle #REST #API for #Database tasks by @JulianFreyCH at #OUGN2024 What a cool stuff! Maybe rapidly deploy a new #PluggableDatabase from within a #build or #test #pipeline? @oracleace @sym_42 @OUGNorway

While configuring parameters in Oracle #database utmost care has to be taken to avoid unforeseen issues like the one which I'll discuss in this post. orabliss.blogspot.com/2022/0… #oracle #oracleace #orabliss #pluggabledatabase #oracle19c #timeout @oracleace

Pluggable Database Hot Clone Refresh Manual in Oracle Database #Clone #PluggableDatabase #Oracle #OracleDBA #DBA #HotClone ittutorial.org/pluggable_dat…

This month on #Oracle Magazine, Viscosity President @racdba discusses the value of @OracleDatabase 12.2 in the cloud and on prem. #multitenancy #pluggabledatabase #SaaS #zerodowntime bit.ly/2r4IoK6