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1. Survey of some free Tools
to enhance your SQL Tuning and Performance
Diagnostics skills
Carlos Sierra

2. What is Performance Tuning?

3. Tuning and Performance Diagnostics
SQL Tuning Database Performance

4. Tuning and Performance Diagnostics
SQL Tuning Database Performance
• One Page
• One Report
• One Program
• One Process
• One Query
• One DML
• Whole Database
• Several Users
• Multiple Transactions
• Certain Times
• Everything is slow!

5. Tools
SQL Tuning Database Performance

6. Tools
SQL Tuning Database Performance
• SQL Trace
• AUTOTRACE
• EXPLAIN PLAN FOR
• DBMS_XPLAN
• SQL Monitor
• Snapper
• SQLTXPLAIN a.k.a. SQLT
• SQLd360
• Enterprise Manager – OEM
• AWR
• Active Session History – ASH
• Statspack
• Snapper
• TUNAs360
• eDB360

7. Cool Free Tools
• Snapper
• TUNAs360
• SQLT
• SQLd360
• eDB360

8. Cool Free Scripts
• planx
• sqlash
• sqlmon
• sqlpch

9. Snapper

10. Snapper
• By Tanel Poder
• Installs nothing
• 10g to 12c
• No dependencies on Diagnostics or Tuning Packs
• Mimics ASH by sampling gv$session
• Samples also
– gv$sesstat, gv$sess_time_model, gv$session_event

11. Parameters
• Seconds between snaps (i.e. 5)
• Number of snaps (i.e. 12)
• Session IDs to snap
• Many other options
– @snapper ash 5 1 144
– ASH mode, 5 seconds between snaps, one snap only,
on session 144

12. TUNAs360

13. TUNAs360
• (TUN)ing with (A)ctive (s)essions
• By Mauro Pagano
• Installs nothing
• 10g to 12c
• No dependencies on Diagnostics or Tuning Packs
• No execution parameters
• Outputs HTML reports and Google Charts

17. SQLT
• By Carlos Sierra, Mauro Pagano and Abel Macias
• Oracle Support standard
• Installs two schemas and several objects
• 10g to 12c
• Inputs one SQL_ID
• Outputs one large HTML report
• Better output having Diagnostics or Tuning Packs

20. SQLd360
• By Mauro Pagano
• Installs nothing
• 10g to 12c
• Inputs one SQL_ID
• Outputs small HTML reports and Google Charts
• Better output having Diagnostics or Tuning Pack

27. eDB360
• By Carlos Sierra
• Installs nothing
• 10g to 12c
• 360-degree view of an entire Oracle Database
• Outputs small HTML reports and Google Charts
• Better output having Diagnostics or Tuning Packs

31. eDB360
• Configuration
• Resources
• DBA stuff
• Storage
• ASM
• Backup and Recovery
• Plan Stability
• CBO Stats
• OS Metrics
• Sessions
• ASH
• AWR

32. planx
• Inputs one SQL_ID
• Outputs
– SQL Performance
– DBMS_XPLAN
– ASH aggregates
– Indexes
– CBO statistics

33. sqlash
• Inputs one SQL_ID
• Outputs ASH report

34. sqlmon
• Inputs one SQL_ID
• Outputs
– SQL Monitor reports list
– Active SQL Monitor report (one per execution)
– Text SQL Monitor report for all executions

38. sqlpch
• Inputs SQL_ID and list of CBO Hints
– MONITOR, BIND_AWARE, GATHER_PLAN_STATISTICS
• Outputs a SQL Patch

39. Size
Tool
• SQLT 6.8 MB
• eDB360 4.4 MB
• SQLd360 1.4 MB
• TUNAs360 0.6 MB
Script
• snapper 165 KB
• planx 50 KB
• sqlpch 7 KB
• sqlash 6 KB
• sqlmon 5 KB

40. SQL Tuning Tools - Ranking
1. SQLd360
2. SQLT
3. Snapper
4. planx
5. sqlmon
6. sqlpch
7. sqlash

41. Performance Diagnostics Tools - Ranking
1. eDB360
2. TUNAs360
3. Snapper

42. Summary
• Diagnose one SQL statement
– Use SQLd360, else SQLT
• Diagnose an entire Oracle Database
– Use eDB360, else TUNAs360
• Diagnose one session or set of sessions (or all)
– Use snapper
• Use stand-alone scripts for special or small cases

43. Questions

44. References
• Snapper
– http://blog.tanelpoder.com
• TUNAs360 and SQLd360
– https://mauro-pagano.com
• SQLTXPLAIN a.k.a. SQLT: MOS 215187.1
• eDB360 and stand-alone scripts
– https://carlos-sierra.net