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Mutating histograms, mutating number of rows, mutating blevel, mutating...
Every so often I get an email from a SQLTXPLAIN user asking the meaning of these “mutating” observation from the health-checks engine on SQLT. On next SQLT release 11.4.5.0 (due on November 21, 2012),...
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Speaking at the UKOUG 2012
I had the honor to be accepted as a speaker of two sessions at the UK Oracle Users Group 2012. So I will be in Birmingham, UK from December 1st to December 5, 2012. My topics are in SQLT Test Case (TC)...
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SQL Dynamic eXtractor (SQLDX) is now available under SQLT and SQLHC
Background As most of you know SQLTXPLAIN (SQLT) and SQL Health-Check (SQLHC) include lots of information about one SQL statement. SQLT requires to install an schema and some objects while SQLHC...
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Deep-dive on SQLTXPLAIN offered externally for the first time
The Rocky Mountain Oracle Users Group (RMOUG) Training Days is approaching soon: February 11-13, 2013. I hope you are attending this Oracle relevant event. There are so many good sessions that it is...
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2-days open SQL Tuning Class in Pleasanton, CA this month!
I will be delivering a two-days SQL Tuning class on February 19-20 in Pleasanton, CA. It is available to registered Oracle Users thanks to the help from NoCOUG. Space is limited, so if you want to...
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RMOUG Training Days February 12 (day 2)
Second day is over now. I attended several interesting sessions. The one I liked the most was about the role of women in technology. I am so glad RMOUG provides now this kind of session! I think we...
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SQL Tuning Workshop at the NoCOUG
I am delivering a two-days SQL Tuning Workshop at the Norther California Oracle Users Group (NoCOUG) in Pleasanton, California. Today is the 2nd and last day of this class. We discussed yesterday:...
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SQLTXPLAIN capabilities – free webinar for Oracle partners (Wednesday 27)
This Wednesday, February 27 at 8 am Pacific Time (11 am ET), I will deliver a one hour webinar to Oracle partners. The topic is about SQLTXPLAIN capabilities and how this tool helps to diagnose SQL...
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IOUG COLLABORATE 13
I will be speaking at the Independent Oracle Users Group (IOUG) “COLLABORATE 13″ conference next week (April 8-11, 2013). I will deliver two sessions: SQL Tuning made easier with SQLTXPLAIN (SQLT):...
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Understanding SQLTXPLAIN Health-Checks
SQLTXPLAIN (SQLT) collects diagnostics details about a SQL statement that either performs poorly or it produces unexpected results (also known as wrong results). In addition to that, it also performs...
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Oracle Queries are taking different Plans
I recently saw a post with this title “Oracle Queries are taking different Plans” and since there was a lot of guessing I suggested to use SQLTXPLAIN and find there the root cause. For some reason or...
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SQLTXPLAIN under new administration
With great pleasure I am announcing here that SQLTXPLAIN (SQLT) is “under new administration”. What does it mean? In short, almost nothing to you. Under the covers, it means you will start seeing a new...
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SQL Tuning with SQLTXPLAIN 2-days Workshop
SQLTXPLAIN is a SQL Tuning tool widely used by the Oracle community. Available through My Oracle Support (MOS) under document 215187.1, this free tool is available for download and use to anyone with...
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YASTS: Yet Another SQL Tuning Script: planx.sql
Having SQLTXPLAIN and SQLHC available, WHY do I need yet another way to display execution plans? New script planx.sql reports execution plans for one SQL_ID from RAC and AWR. It is lightweight and...
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A healthy way to do an Oracle database health-check
Q: How do I do an Oracle database health-check? A: It all depends. (hint: we can use this answer for most Oracle related questions in general and Performance related in particular, but don’t try it at...
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Carlos Sierra’s shared Scripts and Presentations
I recently delivered 3 sessions at the East Coast Oracle Users Group (ECO). During these sessions I offered to share the actual Presentations and some of the Scripts I used during the 3rd session. I...
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Meet “edb360″: a free tool that provides a 360-degree view of an Oracle database
Besides been what I consider a horrendous color, “edb360” also stands for Enkitec’s “database 360-degree” view. Simply put: edb360 is a new free tool that provides a 360-degree view of an Oracle...
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Why using SQLTXPLAIN
Every so often I see on a distribution list a posting that starts like this: “I upgraded my application from database release X to release Y and now many queries are performing poorly, can you tell...
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SQLTXPLAIN under new administration
During my 17 years at Oracle, I developed several tools and scripts. The largest and more widely used is SQLTXPLAIN. It is available through My Oracle Support (MOS) under document_id 215187.1....
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