Cognos conformed dimension
Cognos conformed dimension. Dec 23, 2010 · Hi, I have a problem when Grouping data from two FACTS (two stars) by non-conformed dimension. Confirmed Dimesnion - We have seen lot of definitions of Conformed dimensions, here we will see what is it through Cognos eye. In SAP BW, measure dimensions are called key figures. Whenever we create a model using A dimension is a broad grouping of data about a major aspect of a business, such as products, dates, or markets. Dimensions that appear in multiple data stores are conformed if their structure is identical for all of the following: hierarchy names; level names; level order Nov 15, 2011 · Conformed dimensions are central to the discipline of dimensional modeling. In the Framework Manager user's guide, it talks [on page 225] about an non conformed dimension being added to one side of a structure. There are many conformed dimensions and a couple of non-conformed dimensions (which connected to DETAIL). However, inventory levels are recorded monthly and sales are Sep 24, 2019 · For example, the Sales target fact and the Sales fact join to conformed dimensions on different fields – Sales target joins on the month field in the Time table, Sales target joins to Products table on Product type, and Sales target joins to Retailers table on Retailer whereas Sales fact joins on Date, Product, and Retailer site (all at a Dimensions that appear in multiple data stores are conformed if their structure is identical for all of the following: hierarchy names. We start here with a clean slate. I could probably get them joining on the same column (one table is from the existing dimensional model, another is from a replica of a different database, so they don’t have the same keys) if this was my My question is if I create a "Star Pattern Grouping" on the aforementioned Fact tables ( by choosing the options -> Create shortcuts simply in objects used outside the star schema & Create a modern namespace for this grouping), I'll out up which 3 different namespaces and the conformed dimensions (CD 1, CD 2, CD 3) repeats in every namespace. This 5-day course provides participants with introductory to advanced knowledge of metadata modeling concepts, and how to model metadata for predictable reporting and analysis results using Framework Manager. So this particular FIRST,SECOND,THIRD part will be called DEGENERATED DEMENSION in the fact table. Dimensions that appear in multiple data stores are conformed if their structure is identical for all of the following: hierarchy names; level names; level order I like the Kimball methodology a lot, but the use of lingo definitely obfuscates some of the great ideas there. level names. Invoice_ID 1. 1. In this case, a hierarchy of data can be Dimensions with identical names in the source cubes (conformed dimensions) are added to a virtual cube as merged virtual dimensions. This sounds very basic, and it is, but a lot of times we find that - mostly due to time pressure - dimensional data isn't conformed. Say i have 2 facts . When there is a conformed dimension, it is still possible to not have a suitable stitch key, depending on what items are used in the query and other model design factors. This allows you to refine the columns that are used within the dimension. Our Orders and Payments fact tables have Order and Order Line as 'degenerate dimensions' embedded within. If the query uses conformed dimensions and multiple fact tables because a full outer join is used to stitch the multi-fact query you can get preservation of data. IBM Cognos provides a wide range of features and can be considered as enterprise software to provide flexible reporting environment and can be used for large and medium enterprise. Aug 1, 2012 · The junk dimension is simply a structure that provides a convenient place to store the junk attributes. This is most commonly seen in dimensions such as Time and Customer. Course Description. Product and Time apply to both Inventory and Sales. n to 0. Conformed stars. Participants will learn the full scope of the metadata modeling process, from initial project creation, to publishing of Nov 14, 2010 · The granularity is identical for these two facts within the conformed dimension (date). Aug 22, 2012 · Conformed Dimension in Obiee. However, if only one non-conformed dimension table is involved, it is fine. Conformed dimensions allow facts and measures to be categorized and described in the same way across multiple facts and/or data marts , ensuring consistent reporting across the enterprise. Answer : Cognos Connection. The basics of conformance were introduced in a post from earlier this year. If a non-conformed dimension is added to the query, the nature of the result returned by the stitched query is changed. Dimensions that appear in multiple data stores are conformed if their structure is identical for all of the following: hierarchy names; level names; level order Oct 22, 2009 · Name this Query Subject something like "Invoice_Invoice_Item_Conformed_Dimension" Then specify the appropriate relationships, cardinality, and determinants. 0 IBM Cognos Transformer measures. Dimensions are conformed when the data values that come from the original data sources use the same business keys, or source data, that is used in other packages or models in your IBM Cognos environment. In report studio, I've added data items from both conformed & non conformed dimensions and included a filter to eg: [Revenue]>0. Situation: Facts are HEADER with number of discount amounts, and DETAIL with number of other amounts (and amounts from both groups need to be reported together. The types of dimensions that you can work with in IBM® Cognos® Framework Manager are regular dimensions and measure dimensions. Jul 27, 2017 · I have two fact tables with 2 conformed dimensions and 1 non-conformed dimension. com - The IBM Cognos Community ETL, App Development and other tools COGNOS DecisionStream/Data Manager conformed dimension and Coordinated data Mart Jun 21, 2011 · At the end of the day if you want to see how Cognos handles multi fact joins that look on paper as Loop joins run it up in Cognos using the sample pacakages. Dimensions that appear in multiple data stores are conformed if their structure is identical for all of the following: hierarchy names; level names; level order Course Overview. A query on multiple facts and conformed dimensions respects the cardinality between each fact table and its dimensions and returns all the rows from each fact table. Aug 27, 2013 · A conformed dimension may be used with multiple fact tables in a single database, or across multiple data marts or data warehouses. Invoice_ID Jul 5, 2016 · I didn't worry to use the columns from these shortcuts in the business layer. Dimensions that appear in multiple data stores are conformed if their structure is identical for all of the following: hierarchy names; level names; level order A query on multiple facts and conformed dimensions respects the cardinality between each fact table and its dimensions and writes SQL to return all the rows from each fact table. Jun 21, 2011 · Otherwise, my understanding is that you'll get a stitch query whenever you have a multi-fact query with conformed dimensions and it will be processed locally on the Cognos server, unless the database supports full outer joins, in which case it could be generated as a full outer join SQL statement and executed on the database. More detailed information on stitch queries in Cognos: Dimensions are conformed when the data values that come from the original data sources use the same business keys, or source data, that is used in other packages or models in your IBM® Cognos® environment. This will help to ensure that Cognos Transformer generates category codes that are conformed to the OLAP source from which the dimension was created. It is just a collection of random transactional codes, flags and/or text attributes that are unrelated to any particular dimension. Gain new skills, advance your career, or learn something just for fun. Dimensions that appear in multiple data stores are conformed if their structure is identical for all of the following: hierarchy names; level names; level order Dimensions with identical names in the source cubes (conformed dimensions) are added to a virtual cube as merged virtual dimensions. If a virtual dimension is not merged correctly, or could not be automatically Feb 6, 2020 · To do this, we go to each conformed dimension (each dimension that sits between two fact tables) and go to the Column dependencies screen. This instructs Cognos that the date fact is actually a snow-flaked Single Fact Query A query on a star schema group results in a single fact query. It is no longer possible to aggregate records to a lowest common level of granularity because one side of the query has dimensionality that is not common to the . internal keys. The problem must be in the physical layer – let’s take a look at the joins. In this example, Division and Staff are separate shared/conformed dimensions. A modeller's main focus is creating a user-friendly, comprehensive model that provides in repeatable and predictable query results. Dimensions that appear in multiple data stores are conformed if their structure is identical for all of the following: hierarchy names; level names; level order For example, a Customer dimension appears in a Revenue data store, but not in an Inventory data store. Conformed dimensions allow your users to combine or cross data sources successfully when their business needs require that they do so. Conformed Dimensions. proposals and orders) Some powerful business metrics combine information from multiple Note: the Date Dimension is not conformed and the users want to see payments and orders based on 'Order Line Date' which is in the Orders fact table. The Conformed Dimensions of Data Quality are composed of the following parts: The highest level of description is used to broadly categorize observations of quality. It is no longer possible to aggregate records to a lowest common level of granularity because one side of the query has dimensionality that is not common to the other side of the query. The best definition about Conformed dimension is that it is dimension which is consistent across the whole business and can be linked with all the facts to which it relates . conformed dimension: In data warehousing, a conformed dimension is a dimension that has the same meaning to every fact with which it relates. Nov 8, 2023 · Mein question remains if IODIN create a "Star Schema Grouping" on the said Fact tables ( the choosing the your -> Establish shortcuts only for objects exploited external the star diagramm & Create a new namespace available save grouping), I'll end up having 3 differences namespaces and and conformed dimensions (CD 1, CD 2, CD 3) recurrence in Jul 6, 2020 · I’ve read that using a determinant might be a solution, however both these tables join on a different column to the dimension. For example, Sales and Product Forecast are both facts. Best practice is to retrieve data from the two facts through conformed dimensions. If a virtual dimension is not merged correctly, or could not be automatically For example, a Customer dimension appears in a Revenue data store, but not in an Inventory data store. ) have the same meaning across all the facts. The fact tables are matched on their common keys, Product and Time. How would we handle it if we have one dimension with one of the facts that is not common with the others. The second level is used to break out the distinct components of a dimension. 1 1. Modeling a metadata layer requires an extensive business and underlying data source knowledge. May 17, 2012 · To achieve this Cognos uses a conformed dimension (s) (dimensions that occur in both facts) as a common data point. Regular and measure dimensions are used to enable an OLAP presentation of metadata, drilling up and down, and a variety of OLAP functions. A table with multiple valid relationships between itself and another table is known as a role-playing dimension. Instead, I grabbed the query items from the original conformed dimension. Cognos identifies a query subject as a fact table when all relationships involved in a query are defined with 1:n or 0:n cardinality. A conformed dimension is a set of data attributes that have been physically implemented in multiple database tables using the same structure, attributes, domain values, definitions and concepts in each implementation. Non-conformed dimensions are added to a virtual cube as new virtual dimensions. Unlike in operational systems where data redundancy is normally avoided, data replication is expected in the Data Warehouse world. The third level is a metric which quantifies a specific aspect of a concept. For example, a Customer dimension appears in a Revenue data store, but not in an Inventory data store. thanks My understanding of how FM should handle this Return Flag dimension is that it will be treated as a conformed when a user pulls in a date value from one of the rollplayed date dimensions and a fact measure from the Current Year Fact Query Subject as well as a fact measure from either of Last Year Fact Query Subjects. For example, in a project for sales analysis, you Jul 22, 2013 · Stitching is outer joining the different star schema queries on the conformed dimensions. During the ILT segments, participants will perform hands-on demonstrations and exercises that cover three essential topic areas: modeling, report Dimensions are conformed when the data values that come from the original data sources use the same business keys, or source data, that is used in other packages or models in your IBM® Cognos® environment. Hierarchies. IBM Apr 8, 2024 · My question be if I create a "Star Schema Grouping" on the aforementioned Fact tables ( by choosing the options -> Create shortcuts only for objects used outside the star schema & Create a new namespace for this grouping), I'll end back having 3 different namespaces and the conformed dimensions (CD 1, CADMIUM 2, CD 3) repeats in either namespace. Apr 13, 2024 · My question is if I create a "Star Schema Grouping" on the aforementioned Fact tables ( by choosing the choose -> Create shortcuts only for objects used outdoors the star schema & Create a new namespace for this grouping), I'll end up having 3 different namespaces and the conformed dimensions (CD 1, CD 2, CD 3) repeats in per namespace. IBM Cognos is BI web based reporting and analytic tool. Degenerate Dimensions A degenerate dimension is when the dimension attribute is stored as part of fact table, and not in a separate dimension table. This unique 5-day IBM Cognos training (U5B6070G) is intended for core project team members wanting to acquire a broad understanding of IBM Cognos Analytics platform implementation. For example, if there is only one non-conformed field COURSE_OFFERING_DM. 1 on both sides. If a virtual dimension is not merged correctly, or could not be automatically IBM Cognos Analytics - Modeling for Combination Analysis - HR Example 11 Before this is done however, it is important to examine the nature of the data. COURSE_ID. metadata. Dimensional Modeling Concepts. Since the Manager has requested the attribute Year as the granularity, we will use the dimension which Year is a part of: Time. hence, you will implicitly discard members who have no intersecting fact. Dimensions that appear in multiple data stores are conformed if their structure is identical for all of the following: hierarchy names; level names; level order Dec 2, 2014 · The first part has an extra ACADEMIC_PLAN and the second part has an extra COURSE_ID, so Cognos decide to run two RSUM statements in order to generate a unique key. 1: User Guide A query on multiple facts and conformed dimensions respects the cardinality between each fact table and its dimensions and writes SQL to return all the rows from each fact table. As far as cardinality goes, an order can have 1,0 or many payments. You must use star schema groups (one fact with multiple dimensions) if you want to use IBM® Cognos® Analysis Studio with a relational data source. g. Role-playing dimensions. From the Products table, we drag over the columns that represent the different groupings of data we have on this query – so on the product table, we have three major Also, Sales includes a non-conformed dimension, Order method. Can you explain the statement "When Fact 1 is joined with Dimension 2 with (1. . Dimensions that appear in multiple data stores are conformed if their structure is identical for all of the following: Drilling through is possible between different dimensional data stores only if the dimensions are conformed, and if the dimension data store is of the same vendor type, such as IBM® Cognos® PowerCube as the source and the target. Jan 18, 2013 · typically the relationship between the dimension and fact query subjects is 1-N and not 1-0:N. Cardinality in the Context of a Query: The role of cardinality in the context of a query is important because cardinality is used to determine when and where to split the query when generating multiple-fact queries. A table with multiple relationships between itself and another table is known as a role-playing dimension. 1) cardinality, then data attributes (Attribute 1 or Attribute 2) from Dimension 2 cannot be What Are The User Interface Components. Conformed stars map to a Framework Manager namespace that resides in the Business View namespace. The best example is the Date Dimension because its attributes (day, week, month, quarter, year, etc. Facts are on the different levels For example, a Customer dimension appears in a Revenue data store, but not in an Inventory data store. A query on multiple facts and conformed dimensions respects the cardinality between each fact table and its dimensions and writes SQL to return all the rows from each fact table. However, the Products dimension and the Time dimension appear in both data stores. I can't understand is the [order method] dimension non conformed or is the whole structure non-conformed and why. Feb 27, 2019 · In this case, there’s no conformed dimension, so the same number should repeat for each product line. Learn computer or data science, business, engineering, finance, history, language and more. The following examples will help you interpret the results of a multiple-fact query and understand the options for changing a query to obtain the results that you want. Query Studio. Multiple-grain Query on Conformed Dimensions” on page 39. 3 Multiple-fact, Multiple-grain Query on Non-Conformed Dimensions If a non-conformed dimension is added to the query, the nature of the result returned by the stitched query is changed. I have created start schema grouping for these two Facts. 2. Nov 26, 2013 · Part 1 of a recorded deep dive and demo of a popular IBM Information On Demand (IOD) 2013 hands-on lab sessionModelling, Deploying, and Optimizing Dynamic Cu Multiple-fact, Multiple-grain Query on Non-Conformed Dimensions . Do you see the problem? The join from the Date Dim to the Date Fact is a 1. For example, a parts dimension is the same when used for reporting against sales or inventory fact tables. 343 vi IBM Cognos Framework Manager Version 10. Say For e. Multiple-fact, Multiple-grain Query on Conformed Dimensions A query on multiple facts and conformed dimensions respects the cardinality between each fact table and its dimensions and writes SQL to return all the rows from each fact table. Cognos configuration. Drilling through is possible between different dimensional data stores only if the dimensions are conformed, and if the dimension data store is of the same vendor type Dimensions are conformed when the data values that come from the original data sources use the same business keys, or source data, that is used in other packages or models in your IBM® Cognos® environment. Frame work manager. In such cases, IBM Cognos Analytics uses the conformed dimensions and the row numbers from the results of each query to create a stitch key. Create a report with a couple of conformed dimensions of your choice say Product & Retailer and a couple of facts say Sales & Sales Forecast and look at the generated SQL. Individual queries on Inventory and Sales by Quarter and Product yield the following results. Feb 26, 2024 · Mystery question is if I creates an "Star Schema Grouping" on the aforementioned Fact tables ( by choosing who options -> Create shortcuts only for objects utilised outside the champion schema & Create an new namespace available this grouping), I'll end upward having 3 different namespaces and the conformed dimensions (CD 1, CANDLE 2, CD 3 COGNOiSe. Tip: To ensure conformed dimensions across different packages, the original OLAP source should use unique business keys. For discussion's sake, let's say we are 3 Fact tables (Fact 1, Fact 2, Fact 3); all together joined by 3 different conformed dimensions (CD 1, CD 2, CD 3) which will including a Also, Sales includes a non-conformed dimension, Order method. fact1 has Dim 1 Dime 2 as dimensions Fact2 has Dim1 as dimensions Conclusion. Dimensions that appear in multiple data stores are conformed if their structure is identical for all of the following: hierarchy names; level names; level order Dec 31, 2009 · So this way a dimension will be killed and will become a part of a fact table. I don't think I'd even need determinants on the dimensions -- in this case the only conformed dimension is date and the granularity is the same for both fact tables. For example, the Sales fact in the following example has multiple relationships to Time on the keys Order Day , Ship Day, and Close Day. A common concern is when to alias a table in the data layer. The XSUM statements May 31, 2007 · Can someone explain the concept of a non-conformed dimension to me. 339 Resolving Ambiguously Identified Dimensions and Facts. Yet each staff member must belong to a Division. Cognos 8 Framework Manager manages the semantic layer of a Cognos 8 deployment. IBM Version 11. Report Studio. For example, the Sales fact has multiple relationships to the Time query subject on the keys Order Day, Ship Day, and Close Day. However, inventory levels are recorded monthly and sales are Mar 10, 2024 · Whereas modelling the Data Storehouse, I arose across the scenario where we have many fact tables joined by many conformed (also acting than role playing) dimensions. Create a table for each role that you want the Time table to play. In general, common dimension tables used across multiple fact tables, or contexts, should not be aliased. In OLTP tables that are full of flag fields and yes/no attributes, many of which are used for operational Mar 12, 2024 · My question are if I create a "Star Scheme Grouping" on the aforementioned Fact tables ( by choosing to options -> Create shortcuts simply for objects used outside the star schema & Create an new namespace for dieser grouping), I'll end up having 3 different namespaces additionally the conformed dimensions (CD 1, CD 2, CD 3) echoes in every Dec 21, 2011 · My thought was to add SKeys for the Department, Grade and Resource Type attributes into the Resource dimension, put SKeys for these into the F_Plan_Headcount table and then use the BI tool (Cognos) to do the work and group the dimension to the correct granularity when it generates the SQL. Good times. It is used to perform data aggregation and create user friendly detailed reports. In a nutshell: Measurements of discrete business processes are captured in individual star schemas (e. For examples of the merging process, see Virtual cubes. 343 Query Subjects That Represent a Level of Hierarchy . A dimension containing hierarchies, levels, and columns maps to a Framework Manager regular dimension containing hierarchies, levels, and query items. level order. For example, in this case the relationships would be as follows: Invoice. Also, Sales includes a non-conformed dimension, Order method. If one single fact query returns Jul 24, 2017 · If you have a conformed dimension and you bring in an attribute from that, facts from both fact tables will be grouped and summarised based on this attribute. A conformed dimension is simply a dimension which is exactly the same across the business. n Invoice_Invoice_Item_Conformed_Dimension. So I still wouldn't have determinants on the fact tables. If dimensions and facts are incorrectly identified, stitched A dimension build maps to Framework Manager as a top-level namespace. Since a shortcut is a pointer to an original conformed dimension, different fact tables or start schemas relate to each other through these shortcuts. This is important in creating conformed dimensional reports. Role-Playing Dimensions. Feb 28, 2024 · Cognos Interview Questions. For example, in one place I did a project for the security For example, a Customer dimension appears in a Revenue data store, but not in an Inventory data store. ss xl zu vp hg ec be eo td gk