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CUBE Syntax → CUBE appears in the GROUP BY clause in a SELECT statement. Its form is: SELECT … GROUP BY CUBE … (grouping_column_reference_list) Example 20-4 CUBE SELECT channel_desc, calendar_month_desc … countries.country_iso_code IN ('GB', 'US') GROUP BY CUBE(channel_desc, calendar_month_desc … US 682,297 This query illustrates
Partial CUBE → outside the CUBE operator. In this case, subtotals of all possible combinations are limited to the … dimensions within the cube list (in parentheses), and they are combined with the preceding items in … the GROUP BY list. The syntax for partial CUBE is as follows: GROUP BY expr1, CUBE(expr2, expr3 … ) ( expr1,
When to Use CUBE → Consider Using CUBE in any situation requiring cross-tabular reports. The data needed for cross … -tabular reports can be generated with a single SELECT using CUBE. Like ROLLUP, CUBE can be helpful in … generating summary tables. Note that population of summary tables is even faster if the CUBE query … executes
Calculating Subtotals Without CUBE → same information gathered through CUBE. However, this might require many SELECT statements. For an … n-dimensional cube, 2 to the n SELECT statements are needed. In the three-dimension example, this … columns used in a CUBE clause, the greater the savings compared to the UNION ALL approach.
CUBE Extension to GROUP BY → CUBE takes a specified set of grouping columns and creates subtotals for all of their possible … combinations. In terms of multidimensional analysis, CUBE generates all the subtotals that could be … calculated for a data cube with the specified dimensions. If you have specified CUBE(time, region … , but they would
OMBRETRIEVE CUBE → Purpose This command retrieves a Cube. Prerequisites Should be in Oracle Module context. Syntax … retrieveCubeCommand = OMBRETRIEVE CUBE \"cubeName\" ( GET ( PROPERTIES \"propertyKeyList … \" dimensionUseName = \"QUOTED_STRING\" compositeDimensionName = \"QUOTED_STRING\" See Also OMBRETRIEVE, OMBCREATE CUBE, OMBALTER CUBE,
OMBCREATE CUBE → Purpose This command creates a Cube. Prerequisites Should be in Oracle Module context. Syntax … createCubeCommand = OMBCREATE CUBE \"cubeName\" [ SET ( ( \"setPropertiesClause\" [ SET … properties for CUBE, MEASURE and DIMENSION_USE: Basic properties for CUBE: Name: BUSINESS_NAME Type: STRING … (200) Valid Values:
Cube Views → Each cube has a cube view that presents the data for all the measures and calculated measures in … the cube. You can use a cube view like a fact table in a star or snowflake schema. However, the cube … Cube Views The default name for a cube view is cube
Cube Operator → Use the Cube operator to source data from or load data into cubes. Description of the illustration … cube.gif The Cube operator contains a group with the same name as the cube. This group contains an … attribute for each of the cube measures. It also contains the attributes for the surrogate identifier … and business
OMBALTER CUBE → Purpose This command alters a Cube. Prerequisites Should be in Oracle Module context. Syntax … alterCubeCommand = OMBALTER CUBE \"cubeName\" ( ( \"renameClause\" [ \"alterPropertiesOrIconSetClause … And Parameters setPropertiesClause Basic properties for CUBE, MEASURE and DIMENSION_USE: Basic … properties for CUBE:
OMBDROP CUBE → Purpose This command drops a Cube. Prerequisites Should be in Oracle Module context. Syntax … dropCubeCommand = OMBDROP CUBE \"cubeName\" cubeName = \"QUOTED_STRING\" See Also OWBDROP, OMBCREATE CUBE, OMBALTER CUBE, OMBRETRIEVE CUBE
Column Capacity in ROLLUP and CUBE → CUBE, ROLLUP, and GROUPING SETS do not restrict the GROUP BY clause column capacity. The GROUP BY … explosion of CUBE makes it unwise to specify a large number of columns with the CUBE extension … . Consider that a 20-column list for CUBE would create 2 to the 20 combinations in the result set. A very … large
Hierarchy Handling in ROLLUP and CUBE → The ROLLUP and CUBE extensions work independently of any hierarchy metadata in your system. Their … . This approach enables CUBE and ROLLUP to be used whether or not hierarchy metadata is available … this with months rolled up to quarters and quarters rolled up to years. Example 20-14 ROLLUP and CUBE
Cube Materialized Views → A cube materialized view is an Oracle OLAP cube that has been enhanced with the capabilities of a … materialized view at build time. See Also: \"Adding Materialized View Capability to a Cube\"
Editing Cube Definitions → You can edit a cube and alter its definition using the Data Object Editor. When you edit a … definition, deploy the modified dimension using the Control Center. To edit a cube definition, open the … Data Object Editor using one of the following methods: Right-click the cube in the Project Explorer … and select Open Editor. Double-click
Defining a Cube → A cube consists of the set of measures defined over a set of dimensions. To create a cube, you must … define the following: Cube Measures Cube Dimensionality Cube Measures A measure is data, usually … profit. A cube must have one or more measures. You can also perform aggregation of
Implementing a Cube → When you implement a cube, you specify the physical storage details for the cube. You can implement … a cube in a relational form or a multidimensional form in the database. The types of implementation … set the type of implementation for a cube, use the Deployment Option configuration property. For more … Cube
Using Other Aggregate Functions with ROLLUP and CUBE → The examples in this chapter show ROLLUP and CUBE used with the SUM function. While this is the
Using the Create Cube Wizard → Use the following steps to create a cube using the wizard: From the Project Explorer expand the … Databases node and then the Oracle node. Expand the target module where you want to create the cube … Cube wizard. Click Next to proceed. The wizard guides you through the following pages: Name and … Use the Name and Description page
Displaying the Cube View Descriptions → The Maintenance Wizard automatically generates relational views of a cube. Chapter 4 describes … the Units cube. Figure 3-18 Description of the Units Cube View Description of \"Figure 3-18 Description of the Units Cube View\"