If you have experienced the frustration of dealing with an application transaction that takes too long to execute, and which may be affecting your company's business, then it is possible you have one or more SQL statements that may need some performance tuning. This session covers capabilities, installation and use of the free SQL Tuning tool: SQLTXPLAIN. This session is an introduction to SQLTXPLAIN (SQLT) as a tool to aid in the complex task of SQL Tuning. It assumes nothing. From what is SQLT and its features, to how it is implemented and used, this presentation gives you a good idea how you can benefit of this free tool. As an additional value, since Oracle Support has been requesting the output of this tool on most Query Tuning Service Requests (SR), by learning how to use the right SQLT method, you may help to expedite the resolution of your own SR! During this session you will see how SQLT is installed and how the most common methods - XTRACT and XECUTE are used. A navigation through the main output is also part of this SQLT introductory session. If you are a DBA that besides many other things is also responsible of Performance issues, or you are a Developer that has to find answers when a SQL performs poorly, you may consider attending this session. SQL Tuning is complex, so simply by collecting the right information on a timely manner is a big help. Nothing to lose when a free tool is available for you to try and use. No strings attached!

1. SQL Tuning Made Easier with
SQLTXPLAIN (SQLT)
Carlos Sierra

2. Carlos Sierra
• SQLTXPLAIN + SQL Health-Check SQLHC +
• Consultant/Developer/DBA/Design/+
• Oracle Performance + SQL Tuning
• Oracle Database Health-Check
• Tools + Scripts
• Speaker
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3. Topics
• SQLTXPLAIN 101
• Sample Output
• Installation
• Using XTRACT and XECUTE
• Demos
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4. SQLTXPLAIN (SQLT)
• Tool for SQL Tuning
– Diagnostics
• Inputs one SQL
• Outputs one compressed file
– Main HTML Report + many other files
• MOS 215187.1
– Free download and use
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5. Some Tools
• One Database
– OEM, AWR, OS Stats, etc
• One Process
– SQL Trace, TKPROF, Method R, ASH, etc
• One SQL
– SQLT, SQLHC, planx, sqlmon, sqlash, etc
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7. Demos 1 and 2
• Main HTML Report
• SQLT XTRACT Output
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8. SQLT Installation
• My Oracle Support (Metalink)
– Note 215187.1
• Unzip sqlt.zip on Database Server
• Read sqlt/sqlt_instructions.html
• Execute sqlt/install/sqcreate.sql
– Connect as SYS
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9. Installation Parameters
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10. Using SQLT
• Read sqlt/sqlt_instructions.html
• Navigate to sqlt/run
• Connect as application user
– Or user granted sqlt_user_role or dba
• Execute one of these two
– sqltxtract.sql
– sqltxecute.sql
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11. SQLT XTRACT
• Inputs
– SQL_ID
– SQLTXPLAIN Password
• Outputs
– ZIP File
• Main HTML Report
• Other Files
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12. SQLT XECUTE
• Inputs
– File Name with SQL
• Binds declaration and assignment
• SQL Text
– SQLTXPLAIN Password
• Outputs
– ZIP File
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13. Demos 3 and 4
• SQLT Installation
• SQLT XTRACT
– SQL_ID 8u0n7w1jug5dg
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14. Conclusion
• SQLT is a comprehensive tool for SQL Tuning
• SQLT is free to download and use
• SQLT is easy to use
• SQLT makes SQL Tuning easier
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15. Mastering SQLTXPLAIN
• Practice using SQLT
• Read Stelios Charalambides book
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16. Some SQL Tuning Masters
• Jonathan Lewis
• Maria Colgan
• Tom Kyte
• Kerry Osborne
• Guy Harrison
• Karen Morton
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17. Contact Information
• carlos.sierra@enkitec.com
• carlos-sierra.net
• @csierra_usa
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