![]() ![]() Must describe how queries should be constructed against the relational data Metadata layer (which is the case with OBIEE), the metadata repository In order to use any BI end-user tool that depends on its own Tutorial, and for step-by-step instructions on how to create OLAP 11g cubes, For information about the OLAP model used in this Note: The OLAP data for this tutorial was created using steps In the cube view, and the computation for the equations occurs in the OLAP Calculations in a cube are simply exposed as columns Leaves), while a cube view reveals all summary levels defined in the OLAP A fact tables in a star schema stores detail data (called The dimension views form a constellation around one The star design exposed by OLAP cubes is very similar to traditional ![]() Dimension views or hierarchy views play the role of dimension ![]() A cube view plays the role of a fact table. These views represent an OLAP cube as a star schema with the Oracle OLAP cube data is made directly accessible to SQL by a set of To access OLAP cubes and leverage the OLAP calculation engine,Ī SQL tool - such as OBIEE - uses the built-in SQL interface Shape (and other shared characteristics) for a cube, you can save time when Uncommon for many measures to have the same shape, and so by defining their Way of collecting similar measures of the same dimensionality. These relationships enable navigation between levels, and aggregation from Structure is organized hierarchically based on parent-child relationships. Members of a dimension together for the purpose of analysis. A hierarchy is a logical structure that groups like Dimension hierarchies are optional but areĬommon in OLAP systems. Examples of dimensions include product, geography, time, andĭistribution channel. They shape measures by forming the edges of They do not extend the processing time required for data maintenance.Ĭategorize your measure data. Calculations do not require disk storage space, and Include measures such as ratios, differences, time-series, indicies, moving The values for calculated measures are computedĭynamically by the OLAP calculation engine at query time. May be stored or calculated at query time. Represent factual data, such as sales, cost, profit, and margin. Native multidimensional object types in Oracle database are Query, calculation and data preparation performance Oracle OLAP is an integrated component of Oracle Databaseġ1 g that enables companies to easily gain insights into business performance. You can hide an individual screenshot by clicking Note: Alternatively, you can place the cursor overĪn individual icon in the following steps to load and view only the screenshotĪssociated with that step. Simultaneously, so response time may be slow depending on your Internet connection.) (Caution: This action loads all screenshots The cursor over this icon to load and view all Generate the OBIEE Metadata for Oracle OLAP This tutorial covers the following topics: This tutorial covers the creation of Oracle Business IntelligenceĮnterprise Edition (OBIEE) metadata for access to Oracle Database 11g OLAP Option dataĪnd calculations by using the Oracle OLAP 11g Analytic Workspace Manager Plug-in for OBIEE. SQL> the installation of Workspace Manager by entering the following command while connected as any valid database user, and ensure that the output is as shown here: SQL> select dbms_wm.Creating OBIEE Metadata for OLAP 11g Cubes Lesson 1: Creating OBIEE Metadata for OLAP 11g Cubes Purpose To install Workspace Manager in a custom database, do the following:Īt the system command prompt, change the current directory to the directory that contains Workspace Manager installation script and packages, as shown in the following example: cd /rdbms/adminĬonnect as SYS to the Oracle instance with a command in the following format:Įnter the password for the SYS account when you are prompted. However, in all other Oracle databases, such as those you create with a customized procedure, you must install Workspace Manager before you can use its features. ![]() Workspace Manager is installed by default in the seed database and in all databases created by the Database Configuration Assistant (DBCA). ![]()
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