Multiple inner join ..how they work ?

Here is an example of INNER JOIN.
SELECT whatever
FROM tablea AS a
INNER
JOIN tableb AS b
    ON b.b = a.a
INNER
JOIN tablec AS c
    ON c.c = b.b1
INNER
JOIN tabled AS d
    ON d.d = c.c1As you see there are 3 inner join in a single query ...I'm uncomfortable with this ....because I dont know what is the order of execution of multiple inner joins .
which inner join will be executed first and which is next and which is last ?

Hi,
user575089 wrote:
but you know my concern is .... is not the result of inner join is fed to the next inner join ? ( because there is multiple inner join )Sorry, I don't know what your concern is. Try to explain it, prefereably with a concrete example. Post a specific query, using the dept, emp and salgrade tables in the scott schema (or 3 tables for which you post CREATE TABLE and INSERT statements), and a specific question about that query. If you really need 4 tables to show what your problem is, you can use the hr schama instead of scott.Is it possible to test using MySQL ? What happens when you try it?
I know its an oracle forum You're right; this is an Oracle forum.
....that should not be a problem I guess... ..coz SQL is a universal language ...The English language spoken in Britain is different from the English language spoken in the United States. The differences are minor compared to, say, the differences between either and Hindi, but there are differences.
The SQL langauge used in Oracle is different from the SQL language used in MySQL, even more that the English language used in Britain is different from the English language used in the United States.
I'm guessing that how MySQL and Oracle perform inner joins is pretty similar, as far as it matters for your question, but that's just a guess. I don't know a lot about MySQL, and I don't know what your question is.

Similar Messages

Multiple inner joins combined with outer and right.

Hello
Can someone give me an example of multiple inner joins?
Meaning inner join on more than 3 tables. Can someone provide me sql statement that would be great?
Also can you combine inner outer and right in one query if so how? Again, can someone provide me sql statement that would be great?
Thank you so much

You can look at my sample Re: Need Assistance to write a procedure for the below requirements!!!
John

Better process for introducing new features and explaining how they work

There are all kinds of new features being added to the Creative Cloud app but knowing what they are and learning about how they work isn't the most user friendly process. The current process is read the release notes after updating to a new version. The release notes should hyperlink to the related features in the product help. It would be great if there was a "What's New" section for the Creative Cloud app itself with new releases which included an introduction to new features just like there is for the desktop products.

This is a poorly explained reason about why is so important having a loupe in Photoshop. I've not also, used the best example, but I will. This belongs to the ADDITIONAL FEATURES: Loupe/Magnificator View:. Also, I will try to make my english clrearer, but here it goes:

Coupon Apps and How they work...

I would like a coupon app, but am confused about how they work? Do you scan the barcoad of an item at the store and see if it finds a coupon for you? And if a coupon is found, does it display a coupon for you to use at the register when you pay?
For those of you that are using a coupon app, could you explain how it works? I would appreciate it.

I have used the old MyCoups app. The bar code was not available then. To get coupons, what I did was I sent them to my email address. After they were on my email acccount I printed them out. I know the new app includes the bar code thing. You can scan a barcode and after you do that, it'll show you where you can buy it

Link for BUT000 table and ADRC in CRM and inner join is not working in PCUI

Hi Gurus,
   Please tell me the link btween BUT000 and ADRC table. and i wrote one inner join between BUT000 and BUT0id table but it not working. I m in CRM 4.0 version working with PCUI.
select but000partner but000name_org1 but000name_org2 but000bus_sort1 but0id~parnter1
      but0ididnumber from but000 inner join but0id on but0idpartner = but000~parnter
into corresponding fields of table it_result where partner in s_partner.
It is giving error as partner unknown from but000 table. I delcared everything and tried with alias names also.
please clarify me.
regards,
Ramakrishna.

Hi Frederic,
   thanks a lot. But is inner join between BUT000 and BUT0ID will work. for me it is not working. plesae see this code.
tables : but000,
         but0id,
         crmm_but_custno,
         adrc.
types : begin of typ_but000,
        partner type bu_partner,
        name_org1 type BU_NAMEOR1,
        name_org2 type BU_NAMEOR2,
        bu_sort1 type BU_SORT1,
        idnumber type BU_ID_NUMBER,
        partner1 type bu_partner,
        end of typ_but000.
data: lt_but000 type table of typ_but000,
      ls_but000 like line of lt_but000.
*select-options : s_partnr for but000-partner.
start-of-selection.
      select but000partner but000name_org1 but000name_org2 but000bu_sort1 but0id~parnter1
                but0id~idnumber into corresponding fields of table lt_but000 from but000
                inner join but0id on but0idpartner = but000parnter. " where partner in s_partner.
it is giving error as but000-partner is not know or but0id-partner not known.
So, i think if it not works then i should write two select stmts.
please clarify me.
i gave u rating.
thanks
ramakrishna.

Crop Marks – is this how they work?

I haven't had to use crop marks before – my books have been printed on sheets the same size as the InDesign page. Now however, I am about to print a small book, 4-Up, on sheets larger than the page size, so I will need to add crop marks. I want to run my understanding of how to place crop marks on the page and how they will be used by the guillotine man, past some of the experts on this forum.
And before anyone says: "Crop marks are the printer's job. Just let him do it", or somesuch comment – in this case it's not the printer's job, it's mine. I've chosen to do everything: the writing, the layout, purchase of the paper (910 x 650 sheets), the cutting of the paper, the imposition, the printing, arranging the cutting of the sheets, and then the binding. So, I need to know about crop marks. This is what I have discovered, or guessed (please correct me if I'm wrong):
Assume a page size in InDesign of 100 x 200 mm. When you export to PDF and tick Crop Marks and set Offset to a certain dimension, two things happen:
The page size is increased to (100 + 2 (Offset + 5.3)) in width, and (200 + 2 (Offset + 5.3)) in height. In the case of an offset of 5 mm, the page dimensions of the PDF become 120.6 x 220.6 mm.
Crop marks of 5.3mm in length (5/12"), are placed at the four corners of the new page pointing inwards to the original page size. Thus, in this case, there is a gap of 5mm, the chosen offset, between the end of the crop marks and the original page. This offset allows for movement of the sheets during printing, so that when the crops are made the crop marks won't appear on any of the pages. i.e. the offset is greater than the expected sheet movement.
The guillotine man, when he comes to cut the sheets, lines up the narrow beam of light from the guillotine with one of the crop marks – and cuts that edge. Now there are only two crop marks left because two have been cut off in this first cut.
The guillotine man then rotates the sheets 90º and cuts again. Now there is only one crop mark left.
The sheets are again rotated, the beam of light lined up with the remaining crop mark, and the third cut is made. There are no more crop marks left.
For the final cut, the sheets are rotated 90º, but as there are no crop marks left, the appropriate dimension has to be entered into the guillotine (or marked out on the top sheet), and the cut is made.
I have yet to confirm with my guillotine man that steps 3-6 describe how he will do it. That's simply how I imagine it would happen. And in the case of 4-Up, a couple of extra cuts will be needed in the centre, depending on how the imposed pages are positioned.
Is the above an accurate description of how crop marks are inserted and how they are used?

Thanks for the responses.
Stix: Personally if adding Crop marks in InDesign (I prefer to use an imposition program) I like to make them even numbers, e.g. 3mm offset and 7mm long crop marks, whoch give a PDF size that is bigger by 10mm on each side.
Yes, it would make it easier if numbers were whole integers. But how do you tell InDesign to make a certain-length crop mark? I assumed it was fixed at 30 point (5/24" = 5.292 mm).
cdflash: I'm sure there are good answers to all of these questions but they are not in the opening post.
I tried to keep my question as simple as possible, hence I didn't elaborate. But to answer some of your queries…
Or is the OP going to impose each sheet with 24 pages to view?… I am imposing using only InDesign using a method I developed. It's a very flexible method and works beautifully for 2-Up and 4-Up. Some of the imposition software I trialled several years ago was highly sus and not capable, for example, of generating variable-length signatures. I suppose the up-market programs would be okay, but I can't justify spending thousands on a program I might only use a few times.
Out of interest: can the software you suggested, Creo Preps, impose with these signature lengths: 6,6,4,4,4,8 (numbers of sheets per signature; total 128 pages)?
How many pages are in the book? How many copies of the book are required?… Size of Coracina is 148.5mm x 191 mm, 128 pages, 50 copies. The figures I gave for page size were examples only.
… and impose so that the pages get cut out as single pages and then hand-collated?… Printed sheets are 4-Up on SRA3. I chose SRA3 late in the piece when the printer told me that the click-charge was the same no matter what the paper size. Prior to that I was intending to print on A4. Printing costs are now halved.
Why is the OP handling this and not the printer?… I like a challenge, I like to be in control of the process, I like to learn, and I like to save money.
Tanksinker
Check out the images at the bottom of https://sites.google.com/site/tanksinker/Home/max-burns-tanksinker if you'd like to see how I make a book. Doing it all myself results in huge savings. Tanksinker cost me about $10,000 all up, only half of which I got back in sales. It's a hobby. I don't expect or want to profit from it. To print 50 copies of Tanksinker commercially, judging by what a local offset printer told me, would have cost $50k-100k for the plates alone (2 proofs, 400x4 plates each proof, $20-30/plate).
Coracina
I have been to see the guillotine man after reading all the posts above, and he confirmed that the crop marks I was using would be suitable (I just drew them on a piece of paper; I didn't show him the real thing). He did make a useful suggestion: he would trim the SRA3 sheet along the top and bottom of each book-spread (4 horizontal trims), but not trim to the left and right crop marks (vertical trims) because that would be done anyway when trimming the fore-edge after the book was sewn and glued.
A sample page of Coracina, with crop marks ready for printing, can be downloaded here: http://www.mediafire.com/?5eidx1c61o7jrjx
Printing of the first three copies is tomorrow morning, Tasmania time. If the crop marks on the sample, or any other aspect of the layout looks in any way sus or likely to cause problems, please let me know.
Oh, and I should add that Coracina is my partner's book. Way too girly for me. I'm just the technical consultant, shall I say.

Inner join query not working properly

Hi everyone,
It does not gives any error, but it is not fetching any values...but when i dont include fourth table CSKT AND THE FIELD LTEXT it is fetching the values.
SELECT SINGLE
      T1~PERNR
      T1~BEGDA
      T1~ENAME
      T1~PLANS
      T1~KOSTL
      T2~STRAS
      T2~PSTLZ
      T2~ORT01
      T3~PLSTX
      T4~LTEXT
      INTO FS_TAB
      FROM PA0001 AS T1
      INNER JOIN PA0006 AS T2 ON T1PERNR eq T2PERNR
      INNER JOIN T528T AS T3 ON T1PLANS EQ T3PLANS
      INNER JOIN CSKT AS T4 ON T1KOSTL EQ T4KOSTL
      WHERE T1~PERNR eq p_pernr.

Change like this
SELECT SINGLE
T1~PERNR
T1~BEGDA
T1~ENAME
T1~PLANS
T1~KOSTL
T2~STRAS
T2~PSTLZ
T2~ORT01
T3~PLSTX
T4~LTEXT
INTO FS_TAB
FROM PA0001 AS T1
INNER JOIN PA0006 AS T2 ON T1~PERNR eq T2~PERNR
INNER JOIN T528T AS T3 ON T1~PLANS EQ T3~PLANS
LEFT OUTER JOIN CSKT AS T4 ON T1~KOSTL EQ T4~KOSTL
WHERE T1~PERNR eq p_pernr.
OR
SELECT SINGLE
T1~PERNR
T1~BEGDA
T1~ENAME
T1~PLANS
T1~KOSTL
T2~STRAS
T2~PSTLZ
T2~ORT01
T3~PLSTX
T4~LTEXT
INTO FS_TAB
FROM PA0001 AS T1
LEFT OUTER JOIN PA0006 AS T2 ON T1~PERNR eq T2~PERNR
LEFT OUTER JOIN T528T AS T3 ON T1~PLANS EQ T3~PLANS
LEFT OUTER JOIN CSKT AS T4 ON T1~KOSTL EQ T4~KOSTL
WHERE T1~PERNR eq p_pernr.
as long as the table is not used in where condition, u can use left outter join.

PDF forms and how they work with different Reader versions

I'll start this off by giving a little background information and describing a workflow scenario. I work as an InHouse designer for a company that keeps the majority of the employee population always a few versions behind. Fortunately, for us designers they keep us updated, but it doesn't always play nicely when you're saving your PDFs for older versions of Acrobat Reader.
What happens is that I create a form in InDesign, export a PDF, and then create my form fields in Acrobat Pro 9 on a Mac. After saving for version 9 I then take the PDF and test within the Windows environment which our IT is enforcing Acrobat Reader 7. The PDF opens ok and I can fill out the form, but I cannot save. I then open in Acrobat Pro 7 for Windows and then it gives the option to save or make modifications.
My questions really come down to whether or not Reader 7 is doing this because of how old the technology is, or if that would change if our IT would allow Acrobat Reader 8 or 9? Now I've looked at the Acrobat Pro 9 comparison chart and it states "Enable users of Adobe Reader® (version 8 or later) to fill in and save PDF forms locally." Does this mean that we just need version 8 or 9 and then people can save the form? What in version 7 is causing us not to be able to save? Did that change the technology in some way? I'm trying to figure out if we get IT to upgrade users to Reader 9 if this will solve the issue or will they have to install Acrobat Standard/Pro 9 to save a PDF form?
What other selling points could we make to our IT department that using Reader 9 is a lot better than using Reader 7? Any technology benefits, security or functions?
Thanks

~graffiti wrote:
No version of Reader can save a filled in form unless it has been enabled first.
To enable, open the file in Acrobat then go to Advanced>Enable usage rights in Adobe Reader...
And for my standard disclaimer, if you are going to use the forms in a corporate environment, be sure to study and understand the usage limits for enabled forms (the limit is 500 uses, but there are caveats to that) in the EULA. Mostly the enabled forms are meant for very small time users. If you do not meet that requirement, Adobe sells another product that can enable files for unlimited uses but it costs in the tens of thousands of dollars and is a server side solution.
Hey Graffii,
I enabled the usage rights and that did help with saving in Reader 7. I am a little concerned about the limit of 500 uses. Let me try and understand you a little better. I have a PDF that has a couple form fields and you're saying that the PDF can only be opened 500 times? I've never heard of restrictions on PDFs before. Does this happen after you place just 1 form field? How do I find out more information? I looked in the EULA, but found nothing.
Also, what does Adobe mean here "Enable users of Adobe Reader® (version 8 or later) to fill in and save PDF forms locally." Are they saying that you need Reader 8 or later to read a form or that you need Acrobat Pro 8 or later to enable the form feature?
It's all very confusing because one of the features they tout in version 9 is the ability to save forms locally, but once I enable the form I could save it with Reader 7. It's hard to tell if they are referring to Reader 9 or Acrobat Pro 9.
Thanks

Mail and OS: how they works with dns

Hi to all.
I need an help to understand.
I have a domain, "pippo.it"; this domain has an MX set in this way:
pippo.it MX mail.pippo.it
mail.pippo.it A 151.99.0.100 ; Wan 1
mail.pippo.it A 91.45.98.76 ; Wan 2
With this setting I'm sure that if one line does down, my email server is always available for the other line.
I made this setting and I watched the server and all seems to be running fine; with Wan 1 down, I always receive emails.
The problem I have is when I try to download emails from a client.
IF my mac, during resolving of mail.pippo.it, receives the IP that belongs to the line down, it's not able to try the second one.
Can anyone explain to me HOW the OS and Apple mail works in this situation?
Any suggestion is welcome!
Rob
Pls save XServe!

No problem with Calendar but Mail keeps syncing with the server. The activity window is full all the time - apparently re-syncing though no new mail is downloaded. Rang in but they have no idea what's causing it and have sent diagnostic to engineers. In 10.8, just a quick burst of activity when mail was checked for but now it's constant. As a result, emptying the Deleted Items mailbox is very slow. Am worried about the amount of bandwidth being eaten up.

Will changing location for Itunes Apps and Music files to different drive (from dive C: to drive E:)now effect how they work. And will Itunes be able to find them, when I do a sync?

Will changing the location of folders effect how my Itunes will run? As I am runnig out of room fast on my C drive. And have almost a 1 terrabyte of room on the drive I want it to all to go to. I was thinking of just cutting and pasting.

WpgGizmo wrote:
Will changing the location of folders effect how my Itunes will run
No, but do not simply move files around else you will have a lot of grief...
Do NOT move files then change iTunes prefs to a new location as this will not work.
Quit iTunes.
Copy your entire /Music/iTunes/ folder (and everything inside it) on your C: drive to the E: drive.
Hold Shift and launch iTunes.
Select Choose library and select the iTunes folder you copied to the E: drive.
That is all you need to do. You do not need to change any other settings.

Skype phone numbers and how they work?

ok so here is what I know. With skype you can choose the country of the phone number you want your phone number to originate from. So if I choose my number to be an Australian number any person calling me from Australia will be charged at a local rate if from the same state.
This is my question.
If I set up my phone number to be an Australian number, then I travel overseas to Canada and someone calls my number, what will the rate of charge be for the caller? will it still be a local call since the number is an Australian number or will it not work at all????
And will I in return be able to call back to Australia at a local rate since my number is australian??
Also, Im assuming I need to be connected through wi-fi for someone to call my skype account from a land line phone?

Kristle wrote:
On my bill there are several int/md messages with no phone numbers
That is your phone accessing the internet, or media data. Generally this was how older phones that accessed WAP sited reported their usage, instead of the way newer phones using the WWW report usage.

APDU Commands - How they work ?

Hi,
Iam all new to the JavaCard programming and wanted to understand some basics. The APDU Commands (CLA, INS, P1, P2, ...) are they reserved commands (as in reserved words). If so, how do I get a listing of the same.
Eg. I am looking into one of the programs which have the following few lines,
SetLength(DataToSend, 13);
DataToSend[0] := $88;
DataToSend[1] := $10;
DataToSend[2] := $11;
DataToSend[3] := $00;
DataToSend[4] := $08;
DataToSend[5] := $F9;
DataToSend[6] := $FD;
DataToSend[7] := $CE;
DataToSend[8] := $8B;
DataToSend[9] := $F6;
DataToSend[10] := $F4;
DataToSend[11] := $14;
DataToSend[12] := $E0;
FSCard.SendCustomAPDU(DataToSend, ReceiveBuffer);
I believe the above writes info. to the card.
If Yes, how do I retrive the same from Card?
If No, then what does the instruction stand for?
Appreciate your help ....

hI,
Iam trying to write a sample code by trying to write data to card using XOR, converting the same back in the applet to the original string and retriving the same. The return value is still in XOR value and not the original i sent. Please let me know what iam doing wrong here?
WRITING DATA:
CLIENT PROGRAM:
SetLength(DataToSend, 9);
DataToSend[0] := $88;
DataToSend[1] := $10;
DataToSend[2] := $9A;
DataToSend[3] := $00;
DataToSend[4] := $4;
DataToSend[5] := $A;
DataToSend[6] := $B;
DataToSend[7] := $C;
DataToSend[8] := $D;
DataToSend[5] := DataToSend[5] XOR DataToSend[6];
DataToSend[6] := DataToSend[6] XOR DataToSend[7];
DataToSend[7] := DataToSend[7] XOR DataToSend[8];
DataToSend[8] := DataToSend[8] XOR DataToSend[5];
FSCard.SendCustomAPDU(DataToSend, ReceiveBuffer);
APPLET CALLS THIS PROCEDURE :
private void SetStringSec5(APDU apdu) {
          byte buffer[] = apdu.getBuffer();
          byte size = (byte)(apdu.setIncomingAndReceive());
          byte index;
byte indexsn;
indexsn=0;
          // Store the length of the string and the string itself
          TheBuffer[80] = size;
          for (index = 80; index < (byte)(81+(int)(size)); index++){
               TheBuffer[(byte)(index + 1)] = buffer[(byte)(ISO7816.OFFSET_CDATA + indexsn)];
indexsn++;
          CalcSri();
apdu.setOutgoing();
          apdu.setOutgoingLength((short)size);
apdu.sendBytesLong(TheBuffer,(short)0,(short)size);
          return;
private void CalcSri() {
          TheBuffer[(byte)(8)]=(byte)(((int)(TheBuffer[(byte)(5)])) ^ ((int)(TheBuffer[(byte)(8)])));
TheBuffer[(byte)(7)]=(byte)(((int)(TheBuffer[(byte)(8)])) ^ ((int)(TheBuffer[(byte)(7)])));
          TheBuffer[(byte)(6)]=(byte)(((int)(TheBuffer[(byte)(7)])) ^ ((int)(TheBuffer[(byte)(6)])));
          TheBuffer[(byte)(5)]=(byte)(((int)(TheBuffer[(byte)(6)])) ^ ((int)(TheBuffer[(byte)(5)])));
          return;
READING DATA:
CLIENT PROGRAM :
//Get string from the card
SetLength(DataToSend, 5);
DataToSend[0] := $88;
DataToSend[1] := $10;
DataToSend[2] := $BE;
DataToSend[3] := $00;
DataToSend[4] := $4;
FSCard.SendCustomAPDU(DataToSend, ReceiveBuffer);
APPLET CODE CALLING THE PROCEDURE:
private void GetStr(APDU apdu) {
          byte buffer[] = apdu.getBuffer();
          byte numBytes = buffer[ISO7816.OFFSET_LC];
          apdu.setOutgoing();
          apdu.setOutgoingLength(numBytes);
          byte index;
byte indexsn;
indexsn=0;
          for (index = 80; index <= (byte)(80+(int)(numBytes)); index++){
               buffer[(byte)(indexsn)] = TheBuffer[(byte)(index + 1)];
indexsn++;
apdu.sendBytesLong(buffer,(short)0,(short)numBytes);
          return;
}

Multiple inner joins

any ideas on the following? not sure how to end the query..
select route.COLLECTIONFROM, schedule.DEPARTURE, route.deliveryto, schedule.arrival, goods.goodscontent, consignment.weight
from route, schedule, goods, consignment
where route.routeid=schedule.routeid, consignment.consignmentid=route.consignmentid, goods.consignmentid=consignment.consignmentid
gives this error:
Error starting at line 1 in command:
select route.COLLECTIONFROM, schedule.DEPARTURE, route.deliveryto, schedule.arrival, goods.goodscontent, consignment.weight
from route, schedule, goods, consignment
where route.routeid=schedule.routeid, consignment.consignmentid=route.consignmentid, goods.consignmentid=consignment.consignmentid
Error at Command Line:3 Column:36
Error report:
SQL Error: ORA-00933: SQL command not properly ended
00933. 00000 - "SQL command not properly ended"
*Cause:
*Action:

hmmm..placing AND in between:
Error starting at line 1 in command:
select route.COLLECTIONFROM, schedule.DEPARTURE, route.deliveryto, schedule.arrival, goods.goodscontent, consignment.weight
from route, schedule, goods, consignment
where route.routeid=schedule.routeid AND consignment.consignmentid=route.consignmentid AND goods.consignmentid=consignment.consignmentid
Error at Command Line:3 Column:91
Error report:
SQL Error: ORA-00904: "GOODS"."CONSIGNMENTID": invalid identifier
00904. 00000 - "%s: invalid identifier"
*Cause:
*Action:

Fireworks and dreamweaver issue. How they work seamlessly?

Hi, I am new to these programs.
I am trying to make a website using fireworks and
dreamweaver. I've made my navigation area and headline in fireworks
(simple navigation on left side and header on top). When I export
this to dreamweaver, I am unable to make text etc in the blank area
(main body content area) because as soon as I start typing,
dreamweaver moves my navigation around because I think it is
somehow linked to the main body area?
I think I am missing a crucial step in this process.
How do I use fireworks and dreamweaver seamlessly to allow me
to edit body content of my pages, and not have it change anything
on my navigation area?

firebat99 wrote:
>
> I think I am missing a crucial step in this process.
> How do I use fireworks and dreamweaver seamlessly to
allow me to edit body
> content of my pages, and not have it change anything on
my navigation area?
Here's a really good article on how to use Fireworks and
Dreamweaver
together.
http://www.adobe.com/devnet/fireworks/articles/layout_editing.html
Linda Rathgeber ACE ::: PVII
http://www.projectseven.com
Fireworks Newsgroup:
news://forums.projectseven.com/fireworks/
CSS Newsgroup: news://forums.projectseven.com/css/
Adobe Community Expert - Fireworks
Design Aid Kits:
http://www.webdevbiz.com/pwf/index.cfm

Isolate blending and knockout groups: how they work

I have no idea, I`m not getting any visual changes when trying them as seen here.
can someone show me whats supposed to happen when I tick those options? with a screen capture perhaps before and after with layers and transparency palette in the screen cap?
to my reading, isolate blending should keep the interaction of blend modes to any overlapping objects in the group, ignoring anything under the group.
knockout group should not show any interaction between objects with overlapping fills within the group, only interaction with underlying objects below the group.
but I`m not getting either of these outcomes.

When trying to understand a feature, work with the simplest objects to which you can apply the feature. Don't confuse matters with other effects (in this case, your Pattern fill).
As the tooltips indicate:
The Knockout Group checkbox "Prevents the elements of a Group from showing through each other." Think of it as "knockout within the group."
1. Three squares with normal transparency overlaid on a cyan triangle:
2. The three squares grouped:
3. Group selected. Knockout Group turned on. Each square still has its own Opacity value, but it only affects objects outside the Group. Inside the Group, the squares knockout each other:
The Isolate Blending checkbox "Prevents blending modes from being applied past the bottom of a Group." Think of the emphasis being on BLENDING MODES:
1. Three squares with Multiply transparency overlaid on a cyan triangle:
2. The three squares grouped:
3. Group selected. Isolate Blending turned on. Transparency is "normal" outside the Group:
4. Group selected. Knockout Group on. Each square still has its own Opacity value, but it only affects objects outside the Group. Inside the Group, the squares knockout each other. Outside the Group, Blending mode (Multiply) is in effect:
5. Group selected. Both Knockout Group and Isolate Blending on. Each square still has its own Opacity value, but it only affects objects outside the Group. Inside the Group, the squares knockout each other. Blending mode (Multiply) is isolated to the Group; beyond the Group, Transparency is normal:
JET

Multiple inner join ..how they work ?

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