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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,
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 21-4 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
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
Cube Dimension Compile Log → When solving a cube, OLAP checks the dimension hierarchies to make sure they are valid. Errors that … occur during this validation are written to the Cube Dimension Compile log. The checks include … : Hierarchies can be level based or value based. You can define a cube so that only level-based hierarchies … are valid, such as
Cube Build Log → The Cube Build log provides information about what happened during a build. Use this log to … the Cube Build log is refreshed continuously during a build. You can query the log at any time to … evaluate the progress of the build and to estimate the time to completion. The default name of the Cube … Build log is CUBE_BUILD_LOG.
Cube Rejected Records Log → The Cube Rejected Records log contains a summary of the loader job and any records that were … the same rowid in the SOURCE_ROW column. The default name of the Cube Rejected Records log is … NUMBER -- Current operation identifier SEQ_NUMBER NUMBER -- Sequence number in the Cube Build log ERROR
Cube Operations Log → The Cube Operations log contains messages and debugging information for all OLAP engine events. You … Cube Operations log to dynamic performance views such as V$SQL, V$SESSION, and V$SESSION_LONGOPS to … see cube operations in the context of other database operations such as I/O Wait and CPU. The default … name of the Cube
Creating Cube Logs → procedure. Cube Build logs are always stored in tables. The ENABLE procedure creates the other target types for the other logs.
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 → of the cube contain the dimension members, whereas the body of the cube contains the data values.
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.
CUBE Object → Table 6-12 CUBE Object Property Type Choices Min Max Default Description COSTBASEDPERCENTAGE NUMBER … , DEPLOY_TO_CATALOG_ONLY none none DEPLOY_DATA_OBJECTS_ONLY Warehouse Builder generates a set of scripts for cube … , they are DDL Scripts for Relational Cube or Scripts for OLAP API-II or Scripts for AW … none empty string Refresh
CUBE Object → Table 18-6 CUBE Object Property Type Choices Min Max Default Description COSTBASEDPERCENTAGE NUMBER … , DEPLOY_TO_CATALOG_ONLY none none DEPLOY_DATA_OBJECTS_ONLY Warehouse Builder generates a set of scripts for cube … , they are DDL Scripts for Relational Cube or Scripts for OLAP API-II or Scripts for AW … none empty string Refresh
OMBCREATE CUBE → Purpose This command creates a Cube.
CUBE Object → Table 2-2 CUBE Object Property Type Choices Min Max Default Description COSTBASEDPERCENTAGE NUMBER … , DEPLOY_TO_CATALOG_ONLY none none DEPLOY_DATA_OBJECTS_ONLY Warehouse Builder generates a set of scripts for cube … , they are DDL Scripts for Relational Cube or Scripts for OLAP API-II or Scripts for AW … empty string Refresh
Cube Definitions → A cube consists of the set of measures defined over a set of dimensions as follows. \"Cube Measures … \" \"Cube Dimensionality\" Cube Measures A measure is data, usually numeric and additive, that can … be examined and analyzed. Examples of measures include sales, cost, and profit. A cube must have one
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
OMBDROP CUBE → Purpose This command drops a Cube.
Cube Example → The Sales cube stores aggregated sales data. It contains the following two measures: Value_sales … . Dollar_sales: Stores the amount of the sale. Table 3-13 describes the dimensionality of the Sales cube. It … lists the name of the dimension and the dimension level that the cube references. Table 3-13 … Dimensionality of the Sales