Link fact tables?

hi all,
I have two fact tables – charges and payments and both these fact tables are in the cube (as measure groups). On the relational side, these two fact tables are “linked” by a column called trans_no. Linking these two tables could be little tricky because
a single charge can have multiple payments.
 for example, let’s say there was a charge of 100$ but the payment was done in two installments so there is one row in the charge fact table, but 2 rows in the payment fact table – both rows have the same transaction number but different date.
It is also possible to have two charges in the charge fact table with the same transaction number but one payment in the payment fact table. So I think this is a many-to-many relationship.
How can I link these tables in SSAS? I would to be able to show payments and charges side by side down to the transaction level. Please advise and thanks for the help.

thank you Ken, so i am going to have  dimensions then? -
1. off of payments
2. off of charges
3. "Transaction" dimension
The reason i am saying i need #1 and #2 is because i need some other attributes such as "transaction type"(void etc) from both the fact tables. does this sound correct? i feel like i am cluttering the cube :(

Similar Messages

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    Hi,
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    regards
    Sanjoy ghosh 

    Hi Sanjoy -
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    - build a factless fact that captures the products offered by a given manufacturer at a given point in time (perhaps representing various products catalogs and associated dates.  This would allow you to capture rich details about each dimension separately
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    Let me know if that helps.
    Brent Greenwood, MS, MCITP, CBIP
    // Please mark correct answers and helpful posts //
    http://brentgreenwood.blogspot.com

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  • SSAS 2008 Linking two cubes on the foreign key between two fact tables

    Hi, all -- 
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  • OBIEE-can we link two dimension tables belonging to different fact tables?

    Hi ,
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    I don't see this that would make it snowflake more like what I think as conforming dimensions. You need to make sure the grain of the measures is at what level , the they are same grain then you should be good however if they are different then you would start seeing null values.
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  • How to link two fact table in OBIEE

    i experts
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    Regards
    Frnds

    Hi Frnds,
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    Good Luck,
    Daan Bakboord
    Scamander Solutions

  • Multiple Date Fields (Fact Table) - Linking with Time Dimension

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    Figured this one out; going to use one time dimension - what looking too much into the details in regard to this scenerio

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  • Error VLD-0917 (unknown error)  while deploying FACT table

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    [osantos]

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  • Regarding  Dimension Table and Fact table

    Hello,
    I am having basic doubts regarding the star schema.
    Let me explain first regarding  star schema.
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      Then My basic doubt
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    2.If I have not maintained any master data or text or Heirachies then SID tables will it be generated or not?
    3.If it is generated I think there is use of This SID now..as we have not  maintained Master data.
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    5.If Dimension table contains dim ids and characterstics then where does the  values for characterstics will be stored...?
    ( for ex..sales rep is characterstics for this we will be giving values some names where does these values will be stored..)

    hi Vasu,
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    1002                   9002              300
    1003                   9004              200
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    1001    3001              5001
    1002    3004              5004
    1003    3005              5001
    'sales rep' sid table
    sid   sales rep
    3001  abc
    3004  pqr
    3005  xyz
    'country' sid table
    5001      country1
    5004      country2
    so from the link dim-id and sid, we get
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    sales-rep   revenue
    abc        500
    pqr        300
    xyz        200
    "country report"
    country    revenue
    country1   700
    country2   300
    hope it's clear.

  • Fact Table and Dimension Tables

    Hi Experts, I'm creating custom InfoCubes for data coming from non-SAP source systems. I have two InfoCubes. Tha data is coming from like 10 tables. I have 10 DataSources created fo this and the data will be consolidated in Standard DSO before it will flow into 2 InfoCubes.
    Now client wants to know before how much data will be there in InfoCubes in Fact table nad Dimension tables in both the InfoCubes. I have the total size of all the 10 tables from the sources given to me by the DBA. I wan not sure how I can convert that info for Fact table and Dimension table as I have not yet created these Infocubes.
    Please help me with this on how I should address this.

    hi,
    The exact data will be hard to give however you can reach at a round figure in your case.
    You are consolidating the data from the tables that means that there is relation between the tables. Arrive at a rough figure based on the relation and the activity you are performing while consolidating the data of the tables.
    For example, let us say we want to combine data for sales order and deliveries in a DSO.
    Let Sales order has 1000 records and Delivery has 2000 records. Both the tables have a common link (Sales Order).In DSO you are combining the data that means the data will be at the most granular level consist of Delivery data, so the maximum no of records which the consolidated DSO can have is 2000.
    regards,
    Arvind.

  • Multiple fact tables

    Hi All,
    I am using OBIEE 11g. In my requirement, I have 1 Fact table and 3 Materialized Views of fact table. Now, these 3 MV have same columns as actual fact table 1 barring a couple of additional columns in each of them. Imported these 3 MVs and 1 Fact table in Admin tool. In Physical Layer I joinedmy dimensions to each of the Fact (table and MVs). In BMM I created one Fact table with 4 LTS coming from these fact table and MV. Now, all the dimensions are conformed. Still when bring in a column from each of these facts I am getting incorrect results. e.g. when I find sales from years, the data is correct. As soon as I add another fact column from a different MV/fact table the values from first sales column gets changed.
    I have check LTSs and Content levels and do not see any problems.
    Does anyone have some similar experience?
    Thanks,
    D

    Hi Dcole,
    It should not be a problem,you are going in right direction but i want you to check the joins established in the physical layer once again.
    But you mentioned a point above saying all the columns are same as actual fact with MV's.I suppose it is assuming as 1 column only.Can you change the column names..
    Go through these links for more info
    http://108obiee.blogspot.com/2009/08/joining-two-fact-tables-with-different.html
    http://www.obinotes.com/2010/08/joins-within-logical-table-sources-in.html
    hope helps you.
    Cheers,
    KK

  • Fact table with 2 time keys, measures showing together in the same report

    Hello,
    I am using OBI EE and I have the following scenario: a fact table hold information about enquiries. An enquiry may or may not generate an appointment. So in my fact table I have two date columns: enquiry date and appointment booked date (not the date of the appointment itself, but when it was actually booked).
    This raises a couple of questions. First question is: I can only have one logical FK to the Times table, how to create two LFKs for those 2 dates? Should I create a logical copy of the Times table in the BMM, along with another time dimension?
    Second question is how to display both pieces of data in the same report. For instance, in a summary report per month I want to see the number of enquiries made and appointments booked in each month. Most likely they will be different numbers and refer to different rows in the database. What is the best way to model this in the BMM?
    For instance, in October there were 10 enquiries, 8 of them were converted into appointments along with 3 enquires made in September. So, the report should show for October: number of enquires: 10, number of appointments: 11 (8 from October + 3 from September)
    Sorry if this is a basic question but I couldn't find around any examples of this scenario.
    Thanks,
    Luis

    Genius, that works perfectly, thanks!
    Just one issue that I noticed... I have other dimensions on that fact table, one of them is "channel". Channel is linked to a column in the original fact table, as is Number of Enquiries.
    If I include Channel in a report that shows Number of Enquiries and Number of Appointments, the Number of Appointments column only shows zeros, while the Number of Enquiries column still shows the correct numbers:
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    Jan 09   Email      100           0
             Phone      120           0
    Feb 09   Email       87           0
    ...Then I figured out that I needed to add a PFK for all dimensions to the aliased fact table, not only for the times dimension.
    Thanks again
    Luis

  • Reg: Fact table and Dimension table in Data Warehousing -

    Hi Experts,
    I'm not exactly getting the difference between the criteria which decide how to create a Fact table and Dimension table.
    This link http://stackoverflow.com/questions/9362854/database-fact-table-and-dimension-table states :
    Fact table contains data that can be aggregate.
    Measures are aggregated data expressions (e. Sum of costs, Count of calls, ...)
    Dimension contains data that is use to generate groups and filters.
    This's fine but how does one decide which columns to consider for Fact table and which columns for Dimension table?
    Any help is much appreciated.
    Pardon me if this's not the correct place for this question. My first question in the new forum.
    Thanks and Regards,
    Ranit Biswas

    ranitB wrote:
    But my main doubt was - what is the criteria to differentiate between columns for Fact tables and Dimension tables? How can one decide upon the design?
    Columns of a fact table will often be 'scalar' attributes of the 'fact' data item. A dimension table will often be 'compound' attributes of a 'fact'.
    Consider employee information. The EMPLOYEE table can be a fact table. It might have scalar attribute columns such as: DATE_HIRED, STATUS, EMPLOYEE_ID, and so on.
    Other related information that can't be specified as a single attribute value would often be stored in a 'dimension' table: ADDRESS, PHONE_NUMBER.
    Each address requires several columns to define it: ADDRESS1, ADDRESS2, CITY, STATE, ZIP, COUNTRY. And an employee might have several addresses: WORK_ADDRESS, HOME_ADDRESS. That address info would be stored in a 'dimension' table and only the primary key value of the address record would be stored in the EMPLOYEE 'fact' table.
    Same with PHONE_NUMBER. Several columns are required to define a phone number and each employee might have several of them. The dimension tables are used to help 'normalize' the data in the employee 'fact' table.
    And that EMPLOYEE table might also be a DIMENSION table for other FACT tables. A DEVELOPER table might have an EMPLOYEE_ID column with a value that points to a 'dimension' row in the EMPLOYEE dimension table.

  • Join fact table with higher dimension level

    how do i join fact tables with higher dimension levels with discoverer?
    fact with detail at level C
    measure X
    dimension with
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    E->C
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    1------1------1
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    X=3*C because of sum(X) in discoverer and 3xC in dimension
    is there a way to get correct values for X without creating a dimension like
    D->C
    E->

    another way of asking this is whether you can create a summary table in Discoverer at a higher level than a dimension's fundamental grain. In other words - the summary examples in the documentation all describe leaving out one or more of your dimensions... they are either left in or completely taken out. But, some of the most effective summarization occurs when you summarize daily data to a monthly level. Assuming that I have a sales table (at a daily level, and a key value sales_date), and a table date_dim (primary key sales_date), I would like to create a summary sales_month_summary where the sales are grouped on month_year (which is a field in the sales_date table).
    How is this done? I suspect that we can't use the date_dim table with the summary (due to the problems noted by the poster above). Do we have to create another table "month_dim"? Do we have to fold all of the desired date attributes (month, quarter, year) into the summary? Obviously we'd like to re-use all of the pertinent already existing date items (quarter, month, year, etc.), not recreate them over again, which would result in essentially two sets of items in the EUL. [One used for this month summary, and another used for the detail.]
    I searched the forum - someone asked this same question back in 2000 - there was no answer provided.
    The only other thought I have is to "snowflake" the date_dim into two tables and two folders, one at a date level, another at the month level. Then the detail tables can connect to date_dim (which is linked to month_dim), while the summary data can connect directly to month_dim.

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