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Tuning Instance
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Tuning Oracle Instance
Instance Tuning
Main Components SGA
Shared Pool Tuning
Oracle Library Cache
Query Dictionary Cache
Global Area Session
Data Buffer Cache
Redo Log Buffer
Instance Tuning Conclusion
Shared Pool Tuning
Shared Pool Optimal Tuning
Pin Packages Shared Pool
Reserved Size
Identifying High Use Packages
IIdentify Swapped out Items
Statistics gathered from Startup
Detecting Library Cache Contention
Library Cache Statistics
Reuse SQL Library Cache
Tuning Shared Pool
Data Buffer Cache
Tuning Data Buffer
Calculate buffer Hit Ratio
Non- Full table Scan
Full table Scan
Impact Adding Data Buffers
Predict Amount Spare Memory
Create multiple Buffer Pools
Configure Multiple Buffer Pools
Size Buffer Pools
Monitor Buffer Cache
Use Table Caching
Databuffer Cache Conclusion
Redo Log Tuning
Oracle Redo Logs
Tuning Techniques
View RedoLog Activity
Redo Log Parameters
RedoLog Wait Statistics
RedoLogs Online Size Determination
size Archived RedoLog FileSystem
Tune redo Log Operations
log_checkpoint_interval
RedoLog Tuning Conclusion
Sorting Operations
Oracle Sorting Basics
Sorting Parameters
SQL Join Operations
Monitor for Disk Sorts
Sorting Direct Writes
Temporary Sorting Space
Monitoring Temp Tablespace
Remove SQL Sorts
Sorting Operations Conclusion
Intro Tuning Oracle Locks
Oracle Locking Scheme
Shared Exclusive Locks
Oracle Lock Modes
Database Deadlocks
Preventing Database Deadlocks
Dictionary Lock Views
Lock Utility Scripts
DBMS Lock Package
Tuning Oracle Locks Conclusion
Redo log basics - Quiz
Each question is worth one point. Select the best answer or answers for each question.
1.
Which Oracle server process moves redo logs from the online redo logs to the archived log directory?
Please select the best answer.
A.
LGWR
B.
ARCH
C.
RECO
D.
SMON
2.
Which are true about redo log processing? (Please select all that apply.)
Please select all the correct answers.
A.
The LGWR process archives the redo log files into flat files for roll-forward capability.
B.
The log_buffer is the area of the SGA that holds redo log images.
C.
The archived redo log file system has frequent write activity and should ideally be on a separate disk.
D.
All Oracle databases will archive the redo log information.
3.
Which is listed as an important redo log performance parameter for performance? (Please select all that apply.)
Please select all the correct answers.
A.
Log_buffer
B.
Log_archive_dest
C.
Log_archive_start
D.
Log_simultaneous_copies