Use of complex join in BMM and Physical Join in Physical layer ?

Hi All ,
Why we need to use complex join in BMM layer not the Physical Join ?
Why we need to use Physical Join in Physical layer not Complex join ?
thanks in advance

Hi,
A physical join is at the physical layer and defines the join between two physical tables.
Logical joins live at the BMM (logical) layer and define a join between two logical tables.
The important differentiation is that at the BMM layer you do not tell the OBIEE server how to do the join,
you just tell it that there is a relationship between these two logical entities.
when the server comes to this logical join it will use the information in the physical joins and decides how the two logical tables are joined together.
thanks,
pramod.

Similar Messages

Facts and dimensions joins

Hi,
Can we use three fact tables in rpd and not join them? We have three facts and four dimensions. All the four are common dimensions to the three fact tables. So in the physical joins can we just join the facts to the dimensions? will it be accepatble if we do not have a join between fact tables. Is it necessary that all the tables (fact and dimensions) need to be joined to some tabler? Can we leave the joins between the facts which are not necessary? Please advice.

We do not do joins between fact tables, the joins between facts will be happened through dimensions (conformed dimensions).
In your case the 4 dimension will act as an conformed one.
Is it necessary that all the tables (fact and dimensions) need to be joined to some tabler? You cannot have a table in BMM which is not joined to any other table.
Can we leave the joins between the facts which are not necessary?Yes, Dim1 - fact1 -Dim 2 in this fact 1 is connected with Dim1, Dim2 and there is no relationship for fact1 with Dim3 so we don't join it.
Dim1,Dim2,Dim3 is joined with fact2 in this case Dim 1 and Dim2 will act as conformed dimesion between fact1 and fact2, where as dim3 will be a non conformed dimesion.
Thanks,
Vino

Read data using 2 diff connection pool for same DB folder in physical layer

Hi All,
i am using two connection pool which have different dsn connection information (both are directed to different database name or database server)..
so if i view the data of any table, a prompt will come asking for the connection pool, so how do i automize it....?
how do i set the different connection pool for different tables?
please let me know if u need further informtaion to understand my problem..
thnx...

thnx Stijn..
yupe that i know...
actually i have total of around 300 tables in physical layer (in both the schemas..) , around 12 fact and 100 dimension tables in bmm and same in the presentation layer...
so i think u can guess how many joins and other stuff, i have made in my bmm layer..
if now i will start modifying all this it will take lot of time...
i am just wondering that there is no alternative for this...
as when i check my data from the physical layer then a prompt ask for the connection pool (i have already made two connection pool..) so there could be some alternative way to automize the default connection pool setting for the tables/schemas folders in case if more than one connection pool exits under the same database in the physical layer...
isn't it?
thnx again..

Recommended steps to generate a web service using nested complex types

Hello,
I need to generate a web service that uses nested complex types with built in types on the bottom layer. I hve posted an attempt at a WSDL. Please give advice on if I am doing it correctly.
I have the suspicion that I should nest the complex types into the final complex type VendorStockingInterface. Please confirm.
<?xml version="1.0" encoding="utf-8"?>
<definitions xmlns="http://schemas.xmlsoap.org/wsdl/"
xmlns:conv="http://www.openuri.org/2002/04/soap/conversation/"
xmlns:cw="http://www.openuri.org/2002/04/wsdl/conversation/"
xmlns:http="http://schemas.xmlsoap.org/wsdl/http/"
xmlns:jms="http://www.openuri.org/2002/04/wsdl/jms/"
xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/"
xmlns:s="http://www.w3.org/2001/XMLSchema"
xmlns:s0="http://www.openuri.org/"
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"
targetNamespace="http://www.openuri.org/">
<types>
<s:schema targetNamespace="http://www.openuri.org/"
xmlns:s="http://www.w3.org/2001/XMLSchema">
<s:element name="RegisterServiceRequest">
<s:complexType>
<s:sequence>
<s:element name="DeviceCapabilities">
<s:complexType>
<s:sequence>
<s:element name="OSName" type="s:string" nillable="true"/>
     <s:element name="OSVersion" type="s:string" nillable="true"/>
     <s:element name="BRType" type="s:string" nillable="true"/>
     <s:element name="DisplayColors" type="s:string" nillable="true"/>
     <s:element name="DisplayTechnology" type="s:string" nillable="true"/>
     <s:element name="NetworkAccess" type="s:boolean" nillable="true"/>
     <s:element name="DownloadMethod" type="s:string" nillable="true"/>
     <s:element name="DownloadVersion" type="s:string" nillable="true"/>
     <s:element name="Protocols" type="s:string" nillable="true"/>
     </s:sequence>
</s:complexType>
</s:element>
     <s:element name="LicenseType">
<s:complexType>
<s:sequence>
     <s:element name="Licences" type="s:string" nillable="false"/>
</s:sequence>
</s:complexType>
</s:element>
     <s:element name="PriceValue">
<s:complexType>
<s:sequence>
     <s:element name="Value" type="s:float" nillable="false"/>
     <s:element name="CurrencyType" type="s:string" nillable="false"/>
</s:sequence>
</s:complexType>
</s:element>
     <s:element name="RevenueModelType">
<s:complexType>
<s:sequence>
     <s:element name="VSRP" type="RegisterServiceRequest:PriceValue" nillable="true"/>
     <s:element name="WholesalePrice" type="RegisterServiceRequest:PriceValue" nillable="true"/>
     <s:element name="VendorSplitPercentage" type="s:float" nillable="true"/>
     <s:element name="VendorPurchasePrice" type="RegisterServiceRequest:PriceValue" nillable="true"/>
     <s:element name="License" type="RegisterServiceRequest:LicenseType" nillable="false"/>
</s:sequence>
</s:complexType>
</s:element>
     <s:element name="VendorItemIdentifierType">
<s:complexType>
<s:sequence>
     <s:element name="VendorProductDisplay" type="s:string" nillable="false"/>
     <s:element name="VendorProductVersion" type="s:string" nillable="false"/>
     <s:element name="VendorProductCode" type="s:string" nillable="false"/>
</s:sequence>
</s:complexType>
</s:element>
     <s:element name="VendorBriefType">
<s:complexType>
<s:sequence>
     <s:element name="VendorID" type="s:string" nillable="false"/>
</s:sequence>
</s:complexType>
</s:element>
     <s:element name="VendorItemBriefType">
<s:complexType>
<s:sequence>
     <s:element name="VendorProductID" type="RegisterServiceRequest:VendorItemIdentifierType" nillable="false"/>
     <s:element name="VendorID" type="RegisterServiceRequest:VendorBriefType" nillable="false"/>
     <s:element name="VendorDescription" type="s:string" nillable="true"/>
     <s:element name="VendorPricing" type="RegisterServiceRequest:RevenueModelType" nillable="false"/>
     <s:element name="DownloadURL" type="s:string" nillable="true"/>
     <s:element name="ShortCode" type="s:string" nillable="true"/>
     <s:element name="ApplicationCode" type="s:string" nillable="true"/>
     <s:element name="DRMMethod" type="s:string" nillable="true"/>
</s:sequence>
</s:complexType>
</s:element>
     <s:element name="ContentType">
<s:complexType>
<s:sequence>
     <s:element name="Categorization" type="s:string" nillable="false"/>
     <s:element name="MIMEType" type="s:string" nillable="true"/>
</s:sequence>
</s:complexType>
</s:element>
     <s:element name="VendorStockingInterface">
<s:complexType>
<s:sequence>
     <s:element name="VendorItemInfo" type="RegisterServiceRequest:VendorItemBriefType" nillable="false"/>
     <s:element name="ProductType" type="RegisterServiceRequest:ContentType" nillable="false"/>
     <s:element name="DeviceRequirements" type="RegisterServiceRequest:DeviceCapabilitiesType" nillable="true"/>
     <s:element name="VendorPricing" type="RegisterServiceRequest:RevenueModelType" nillable="false"/>
     <s:element name="ProgramMemory" type="s:int" nillable="true"/>
     <s:element name="DataMemory" type="s:int" nillable="true"/>
     <s:element name="Author" type="s:string" nillable="true"/>
     <s:element name="Language" type="s:string" nillable="true"/>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="RegisterServiceResponse">
<s:complexType>
<s:sequence>
<s:element name="Message" type="s:string"/>
</s:sequence>
</s:complexType>
</s:element>
</s:sequence>
</s:complexType>
</s:element>
</s:schema>
</types>
<message name="RegisterServiceSoapIn">
<part name="parameters" element="s0:RegisterServiceRequest"/>
</message>
<message name="RegisterServiceSoapOut">
<part name="parameters" element="s0:RegisterServiceResponse"/>
</message>
<portType name="RegisterServiceSoap">
<operation name="RegisterService">
<input message="s0:RegisterServiceSoapIn"/>
<output message="s0:RegisterServiceSoapOut"/>
</operation>
</portType>
<binding name="RegisterServiceSoap" type="s0:RegisterServiceSoap">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"/>
<operation name="RegisterService">
<soap:operation soapAction="http://www.openuri.org/RegisterService" style="document"/>
<input>
<soap:body use="literal"/>
</input>
<output>
<soap:body use="literal"/>
</output>
</operation>
</binding>
<service name="RegisterService">
<port name="RegisterServiceSoap" binding="s0:RegisterServiceSoap">
<soap:address location="http://localhost:7001/RegisterService.jws"/>
</port>
</service>
</definitions>
I'd like the the consumer of the web service to send it a document with the fields formatted to the VendorInterface complextype which contains the other complextypes. In return the consumer will get another document with some acknowledgement messages.
To make this happen I'd like to generate the web service, creating the complex type classes and XMLBeans. I'd like advice on the steps to take once I get a good WSDL.
There is also the option to go from the other direction. Is it better to attempt to create a schema XSD document instead and use that to work towards the web service and WSDL? If so, could someone give an example of how to format an XSD using my example needs.

I think I have got it all in place, though I have not tested it as of yet. For others who are looking at this, here is my XSD file from which all my complextypes were generated and lastly here is the actual web service file.
?xml version="1.0"?>
<xs:schema targetNamespace="http://openuri.org/RegisterService"
xmlns:rs="http://openuri.org/RegisterService"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified"
xmlns:tns="http://temp.openuri.org/VerizonBOBO/RegisterServiceRequestDocument.xsd">
<xs:element name="RegisterServiceRequest" type="rs:VendorStockingInterface"/>
<xs:complexType name="DeviceCapabilitiesType">
<xs:sequence>
<xs:element name="OSName" type="xs:string" nillable="true"/>
<xs:element name="OSVersion" type="xs:string" nillable="true"/>
<xs:element name="BRType" type="xs:string" nillable="true"/>
<xs:element name="DisplayColors" type="xs:string" nillable="true"/>
<xs:element name="DisplayTechnology" type="xs:string" nillable="true"/>
<xs:element name="NetworkAccess" type="xs:boolean" nillable="true"/>
<xs:element name="DownloadMethod" type="xs:string" nillable="true"/>
<xs:element name="DownloadVersion" type="xs:string" nillable="true"/>
<xs:element name="Protocols" type="xs:string" nillable="true"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="LicenseType">
<xs:sequence>
<xs:element name="Licences" type="xs:string" nillable="false"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="PriceValue">
<xs:sequence>
<xs:element name="Value" type="xs:float" nillable="false"/>
<xs:element name="CurrencyType" type="xs:string" nillable="false"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="RevenueModelType">
<xs:sequence>
<xs:element name="VSRP" type="rs:PriceValue" nillable="true"/>
<xs:element name="WholesalePrice" type="rs:PriceValue" nillable="true"/>
<xs:element name="VendorSplitPercentage" type="xs:float" nillable="true"/>
<xs:element name="VendorPurchasePrice" type="rs:PriceValue" nillable="true"/>
<xs:element name="License" type="rs:LicenseType" nillable="false"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="VendorItemIdentifierType">
<xs:sequence>
<xs:element name="VendorProductDisplay" type="xs:string" nillable="false"/>
<xs:element name="VendorProductVersion" type="xs:string" nillable="false"/>
<xs:element name="VendorProductCode" type="xs:string" nillable="false"/>
     </xs:sequence>
</xs:complexType>
<xs:complexType name="VendorBriefType">
<xs:sequence>
<xs:element name="VendorID" type="xs:string" nillable="false"/>
     </xs:sequence>
</xs:complexType>
<xs:complexType name="VendorItemBriefType">
<xs:sequence>
<xs:element name="VendorProductID" type="rs:VendorItemIdentifierType" nillable="false"/>
<xs:element name="VendorID" type="rs:VendorBriefType" nillable="false"/>
<xs:element name="VendorDescription" type="xs:string" nillable="true"/>
<xs:element name="VendorPricing" type="rs:RevenueModelType" nillable="false"/>
<xs:element name="DownloadURL" type="xs:string" nillable="true"/>
<xs:element name="ShortCode" type="xs:string" nillable="true"/>
<xs:element name="ApplicationCode" type="xs:string" nillable="true"/>
<xs:element name="DRMMethod" type="xs:string" nillable="true"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="ContentType">
<xs:sequence>
<xs:element name="Categorization" type="xs:string"/>
<xs:element name="MIMEType" type="xs:string"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="VendorStockingInterface">
<xs:sequence>
<xs:element name="VendorItemInfo" type="rs:VendorItemBriefType"/>
<xs:element name="ProductType" type="rs:ContentType"/>
<xs:element name="DeviceRequirements" type="rs:DeviceCapabilitiesType"/>
<xs:element name="VendorPricing" type="rs:RevenueModelType"/>
<xs:element name="ProgramMemory" type="xs:int"/>
<xs:element name="DataMemory" type="xs:int"/>
<xs:element name="Author" type="xs:string"/>
<xs:element name="Language" type="xs:string"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="RegisterServiceResponse">
<xs:sequence>
<xs:element name="Message" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:schema>
The Web Service File:
import org.openuri.registerService.RegisterServiceResponse;
import org.openuri.registerService.RegisterServiceRequestDocument;
import com.verizon.hp.registerservice.*;
public class RegisterService implements com.bea.jws.WebService
static final long serialVersionUID = 1L;
* @common:operation
* @jws:protocol form-post="false" form-get="false"
public org.openuri.registerService.RegisterServiceResponse RegisterService(org.openuri.registerService.RegisterServiceRequestDocument RegisterServiceDoc)
VendorStockingInterface vsInterface = (VendorStockingInterface)RegisterServiceDoc.getRegisterServiceRequest();
System.out.println(vsInterface.toString());
com.verizon.hp.registerservice.RegisterServiceResponse serviceResponse = new com.verizon.hp.registerservice.RegisterServiceResponse();
serviceResponse.setMessage("Register New Service Message has been received successfully");
org.openuri.registerService.RegisterServiceResponse response = (org.openuri.registerService.RegisterServiceResponse)serviceResponse;
return response;
}

What is the different between Logical complex join and Physical join?

hi,
Do somebody know what is the function different between logical complex join in BMM layer and physical join in physical layer?
Thanks.

Thank you very much1
I understand their differentiation:
In the BMM Complex join (intelligent), means OBI picks the best way from possibly many different ways to join using physical join. FK join forces the same join always, which limits flexibility.

Diff bw complex join and physical join

hi all
Can sumbody explain me the all the differences between complex join and physical join in the admin tool
Thanks
Shobhit

Hi,
Suggest you to go through this link. It may be helpful in detail.
http://st-urriculum.oracle.com/obe/fmw/bi/biee/r1013/bi_admin/biadmin.html
Thanks,
Vengatesh.

Difference between physical join and logical join

Hi Gurus,
Can anyone tell me what is the difference between physical join and logical join
Thanks,
Chandra

Hi,
A physical join is at the physical layer and defines the join between two physical tables. Logical joins live at the BMM (logical) layer and define a join between two logical tables.
The important differentiation is that at the BMM layer you do not tell the OBIEE server how to do the join, you just tell it that there is a relationship between these two logical entities. When the server comes to this logical join it will use the information in the physical joins and decides how the two logical tables are joined together.
In BMM you use complex joins to establish which logical tables are joined which another, the OBI EE server will go to the physical level to search the physical join to make the query. You can also use physical joins in the BMM to override the join in the physical layer but only in very specific conditions.
If you also set complex join in the physical layer OBI EE won't be able to construct the physical query.
Hope this answers your question.
Award points if helpful.
Thanks,
-Amith.

Logical And Physical Joins Of SH_PartTwo.rpd provided by oracle OBIEE

Hi,
I am new the OBIEE tool.After downloading SH_PartTwo.rpd .Planned to recreate the physical and logical joins.
If any one has already tried this, kindly explain why we are creating Alias tables of (SALES,TIMES)and joining COSTS to them instead of directly joining to Sales fact table. Below is the table structure.My question again,previously in SH.rpd we were joining Sales fact with other dimensions.If I need cost data then why should'nt I join cost with sales.
Thanks for your cooperation in advance.
Regards,
Sreekanth
Costs Sales Times Customers Countries Products Promotions Channels
Timeid Timeid Timeid
Productid Productid Productid
Promotionid Promotionid Promotionid
Channelid Channelid Channelid
Custid Custid
Countryid Countryid
Unitcost Amount_sold

Well don't know the example anymore ;)
But you normally will make aliasses to reuse the object.
So if you have a time dimension, and you have all kind of fields, like date_sold, date_bought, date_paid...
Now if you connect those dates directly to the time dimension, then you can get very odd reports... if you use aliasses, then the times have nothing to do with each other...
So it is always better to use aliasses... you never know if you need a table only once..

Physical Joins Difference Between 10G and 11G?

Hi All, I have started using OBIEE 11G. Anybody please let me know is there any difference in applying physical joins in OBIEE 10G and 11G.
I heard that we need to join Fact and Dim tables in reverse way in 11G.
Thanks in Advance.

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Generally when does optimizer use nested loop and Hash joins ?

Version: 11.2.0.3, 10.2
Lets say I have a table called ORDER and ORDER_DETAIL.
ORDER_DETAIL is the child table of ORDERS .
This is what I understand about Nested Loop:
When we join ORDER AND ORDER_DETAIL tables oracle will form a 'nested loop' in which for each order_ID in ORDER table (outer loop), oracle will look for corresponding multiple ORDER_IDs in the ORDER_DETAIL table.
Is nested loop used when the driving table (ORDER in this case) is smaller than the child table (ORDER_DETAIL) ?
Is nested loop more likely to use Indexes in general ?
How will these two tables be joined using Hash joins ?
When is it ideal to use hash joins ?

Your description of a nested loop is correct.
The overall rule is that Oracle will use the plan that it calculates to be, in general, fastest. That mostly means fewest I/O's, but there are various factors that adjust its calculation - e.g. it expects index blocks to be cached, multiple reads entries in an index may reference the same block, full scans get multiple blocks per I/O. It also has CPU cost calculations, but they generally only become significant with function / package calls or domain indexes (spatial, text, ...).
Nested loop with an index will require one indexed read of the child table per outer table row, so its I/O cost is roughly twice the number of rows expected to match the where clause conditions on the outer table.
A hash join reads the of the smaller table into a hash table then matches the rows from the larger table against the hash table, so its I/O cost is the cost of a full scan of each table (unless the smaller table is too big to fit in a single in-memory hash table). Hash joins generally don't use indexes - it doesn't use the index to look up each result. It can use an index as a data source, as a narrow version of the table or a way to identify the rows satisfying the other where clause conditions.
If you are processing the whole of both tables, Oracle is likely to use a hash join, and be very fast and efficient about it.
If your where clause restricts it to a just few rows from the parent table and a few corresponding rows from the child table, and you have an index Oracle is likely to use a nested loops solution.
If the tables are very small, either plan is efficient - you may be surprised by its choice.
Don't be worry about plans with full scans and hash joins - they are usually very fast and efficient. Often bad performance comes from having to do nested loop lookups for lots of rows.

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Use of complex join in BMM and Physical Join in Physical layer ?

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