473,320 Members | 1,870 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,320 software developers and data experts.

Reading an explain Plan

I am running explain plans on different SQLs and need some help reading
the output. Is there a document that will help me understand this? Any
help will be appreciated.
Thanks

Apr 4 '06 #1
15 8419
db2freak wrote:
I am running explain plans on different SQLs and need some help reading
the output. Is there a document that will help me understand this? Any
help will be appreciated.
Thanks

I sent you a pdf to the gmail address.

Cheers
Serge

--
Serge Rielau
DB2 Solutions Development
IBM Toronto Lab
Apr 4 '06 #2
Serge Rielau wrote:
db2freak wrote:
I am running explain plans on different SQLs and need some help reading
the output. Is there a document that will help me understand this? Any
help will be appreciated.
Thanks

I sent you a pdf to the gmail address.

Cheers
Serge

Hi!

Can you please send that PDF to me too ?

Best regards,
Kovi
--
-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~
| Gregor Kovac | Gr**********@mikropis.si |
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| In A World Without Fences Who Needs Gates? |
| Experience Linux. |
-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~
Apr 5 '06 #3
Serge
it would be a good idea to post the link for this document so that we all
can get it.

regards
krishna j

"Serge Rielau" <sr*****@ca.ibm.com> wrote in message
news:49************@individual.net...
db2freak wrote:
I am running explain plans on different SQLs and need some help reading
the output. Is there a document that will help me understand this? Any
help will be appreciated.
Thanks

I sent you a pdf to the gmail address.

Cheers
Serge

--
Serge Rielau
DB2 Solutions Development
IBM Toronto Lab

Apr 5 '06 #4
Agreed. I was about to request the document ... is there any public
link ?

Thanks.

Apr 5 '06 #5
Michel Esber wrote:
Agreed. I was about to request the document ... is there any public
link ?

Thanks.

Well. I'd love to.
Here is the title:
D13: Analyzing Query Access Plans In DB2/LUW Using Explain
by John Hornibrook, IDUG NA 2004
Unfortunately I can't find the beast in the IDUG Technical library.
And this link served up by google:
http://www.idug.org/idug/member/jour...1/articl05.cfm
Doesn't work for me....

Anyone having better luck?
Serge
--
Serge Rielau
DB2 Solutions Development
IBM Toronto Lab
Apr 5 '06 #6
In article <49************@individual.net>, sr*****@ca.ibm.com says...
Michel Esber wrote:
Agreed. I was about to request the document ... is there any public
link ?

Thanks.

Well. I'd love to.
Here is the title:
D13: Analyzing Query Access Plans In DB2/LUW Using Explain
by John Hornibrook, IDUG NA 2004
Unfortunately I can't find the beast in the IDUG Technical library.
And this link served up by google:
http://www.idug.org/idug/member/jour...1/articl05.cfm
Doesn't work for me....

Anyone having better luck?
Serge


Instead of clicking the real link after the Google search, you can read
the 'cache' version without a problem.
Apr 5 '06 #7
Nice ... Just for the records: http://tinyurl.com/mgdpw

Apr 6 '06 #8
thanks Michel!
this link works - and a useful article

krishna j

"Michel Esber" <mi****@us.automatos.com> wrote in message
news:11*********************@g10g2000cwb.googlegro ups.com...
Nice ... Just for the records: http://tinyurl.com/mgdpw

Apr 7 '06 #9
Michel,

I do not see the article as soon as I click on the link you provide:
http://tinyurl.com/mgdpw

This is what I got:
Sua pesquisa -
cache:bqE9DrG1gdIJ:http://www.idug.org/idug/member/jour...1/articl05.cfm
DB2 John Hornibrook - não encontrou nenhum documento correspondente.

Would you check if the link is still ok?

Thanks!

krishan wrote:
thanks Michel!
this link works - and a useful article

krishna j

"Michel Esber" <mi****@us.automatos.com> wrote in message
news:11*********************@g10g2000cwb.googlegro ups.com...
Nice ... Just for the records: http://tinyurl.com/mgdpw


Apr 10 '06 #10
In article <11**********************@i40g2000cwc.googlegroups .com>,
ne*****@hotmail.com says...
Michel,

I do not see the article as soon as I click on the link you provide:
http://tinyurl.com/mgdpw

This is what I got:
Sua pesquisa -
cache:bqE9DrG1gdIJ:http://www.idug.org/idug/member/jour...1/articl05.cfm
DB2 John Hornibrook - não encontrou nenhum documento correspondente.

Would you check if the link is still ok?


It looks like Google removed it from their cache also. It now depends on
Serge sending the pdf, or resending it by others who already got a copy
if this is allowed by Serge?
Apr 10 '06 #11
Gert van der Kooij wrote:
In article <11**********************@i40g2000cwc.googlegroups .com>,
ne*****@hotmail.com says...
Michel,

I do not see the article as soon as I click on the link you provide:
http://tinyurl.com/mgdpw

This is what I got:
Sua pesquisa -
cache:bqE9DrG1gdIJ:http://www.idug.org/idug/member/jour...1/articl05.cfm
DB2 John Hornibrook - não encontrou nenhum documento correspondente.

Would you check if the link is still ok?


It looks like Google removed it from their cache also. It now depends on
Serge sending the pdf, or resending it by others who already got a copy
if this is allowed by Serge?

I'm in no position to allow or disallow anything.
Presumably copyright rests with IDUG.
Now, I can't imagine IDUG taking issue with passing a popular talk
around as long as no-one places it on a their webpage for download.
Maybe those with an interest should email IDUG to inquire why this page
doesn't come up?
In the meantime those who want the talk can send me email and I'll pass
it along.

Cheers
Serge

--
Serge Rielau
DB2 Solutions Development
IBM Toronto Lab
Apr 10 '06 #12
Udo
Yo can get the page from the web-archive

http://web.archive.org/web/200406030...1/articl05.cfm

Regards,
Udo

--
Speedgain for DB2 - The DB2 Monitor
http://www.itgain.de/en/index.html

Apr 10 '06 #13
Udo wrote:
Yo can get the page from the web-archive

http://web.archive.org/web/200406030...1/articl05.cfm

Regards,
Udo

Danke Udo,

See you in The Hague?

Gruss
Serge
--
Serge Rielau
DB2 Solutions Development
IBM Toronto Lab
Apr 10 '06 #14
Udo
> Danke Udo

Wow - your german makes progress :-)
See you in The Hague?


Not me. But someone of the Speedgain crew will be there.

Gruss
Udo

--
Speedgain for DB2 - The DB2 Monitor
http://www.itgain.de/en/index.html

Apr 10 '06 #15
Udo wrote:
Danke Udo


Wow - your german makes progress :-)

oh, oh.. ist's die Eifel oder die Pfalz die durchschlaegt?

Cheers
Serge
--
Serge Rielau
DB2 Solutions Development
IBM Toronto Lab
Apr 10 '06 #16

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

5
by: Bagieta | last post by:
Hello. Does someone of you know if is there a 'explain plan' like function in SQL Server (similar to explain plan in Oracle or DB2) If so then how it works, where stores data and how it can be...
2
by: Chris Breemer | last post by:
I'm looking for a DB2 "explain plan" command on the As/400. Anybody know if this exists and where to find it ? TIA Chris
0
by: spencer | last post by:
Are there any recommended books or articles that give a really good description of the output in a db2 explain plan? Serge perhaps you can write an article if there is not one! Spencer
14
by: Ina Schmitz | last post by:
Hello all, I don't succeed in displaying the explain plan. I use IBM DB2 Universal Database 8.2. I tried to do the example given in the online help for "Visual Explain". The tables...
3
by: dunleav1 | last post by:
Here's the statement: delete from table a where id1=4; Table a is a parent to table b,c,d,e,f,g,h,i,j,k,l Table a key is id1,id2 table b,c,d,e,f,g,h,i,j,k,l key is id2,id3. I delete all the...
1
by: hastha23 | last post by:
Hi, What is explain plan? what is full table scan? Anybody .. Regards, Hastha23
1
by: thescript786 | last post by:
Hi, I am new to DB2. I am using DB2 V8.1 how to find cost of a query? In dB2 Is there is any similar command like explain plan in oracle? Thanks in Advance, Karthick
7
by: skaushik | last post by:
Hi all, I was working on a SQL query where a history table is joined with a small table to get some information. There is an index on the history table column but the explain plan tells that there...
3
by: raviva | last post by:
Hi, I want the explain plan. But when I clicked on the explain plan it says ORA-02404: specified plan table not found. I investigated on net and some books. I was asked to load the utlxplan.sql. I...
0
by: db2admin | last post by:
hello, I have compressed table 442992 rows and when i run explain plan on this table for some SQL using this table, i see table scan and cardinality on top of table node as 18458. I am new to...
0
by: DolphinDB | last post by:
Tired of spending countless mintues downsampling your data? Look no further! In this article, you’ll learn how to efficiently downsample 6.48 billion high-frequency records to 61 million...
0
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...
1
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...
0
by: Vimpel783 | last post by:
Hello! Guys, I found this code on the Internet, but I need to modify it a little. It works well, the problem is this: Data is sent from only one cell, in this case B5, but it is necessary that data...
0
by: jfyes | last post by:
As a hardware engineer, after seeing that CEIWEI recently released a new tool for Modbus RTU Over TCP/UDP filtering and monitoring, I actively went to its official website to take a look. It turned...
0
by: ArrayDB | last post by:
The error message I've encountered is; ERROR:root:Error generating model response: exception: access violation writing 0x0000000000005140, which seems to be indicative of an access violation...
1
by: PapaRatzi | last post by:
Hello, I am teaching myself MS Access forms design and Visual Basic. I've created a table to capture a list of Top 30 singles and forms to capture new entries. The final step is a form (unbound)...
0
by: CloudSolutions | last post by:
Introduction: For many beginners and individual users, requiring a credit card and email registration may pose a barrier when starting to use cloud servers. However, some cloud server providers now...
0
by: af34tf | last post by:
Hi Guys, I have a domain whose name is BytesLimited.com, and I want to sell it. Does anyone know about platforms that allow me to list my domain in auction for free. Thank you

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.