Oracle DBA Learning Series Topic 2

 Oracle DBA Learning Series

Topic 2: Shared Pool

The Shared Pool is a key part of the SGA that helps Oracle improve performance by reusing SQL and PL/SQL code instead of parsing it again and again.
The size of the shared pool is defined by initialization parameter SHARED_POOL_SIZE in parameter file.
🔹 What the Shared Pool stores
✔ Parsed SQL & execution plans
✔ PL/SQL procedures & functions
✔ Data dictionary cache
🔹 Why it matters to DBAs
✅ Reduces hard parsing
✅ Improves query performance
✅ Saves CPU and memory
DBA Tip:
If the shared pool is too small, you may see library cache misses and frequent hard parses.

Let’s keep learning! 🚀