Rampant TechPress Oracle Data Warehouse Management PHẦN 8 pot

... W AREHOUSING AND O RACLE 8 I P AGE 84 Managing CPU Utilization for Data Warehouses in Oracle8 i In data warehouses diverse groups of users may look at the data warehouse to find information ... earlier releases of Oracle you could use profiles to restrict specific types of resources but this was unwieldy and produced unpredictable results. New in Oracle8 i is the co...

Ngày tải lên: 08/08/2014, 22:20

... index-table setup. Oracle8 i and Tuning of Data Warehouses using Small Test Databases In previous releases of Oracle in order to properly tune a database or data warehouse you had to have data that ... larger than they are in your test database. The Oracle provided package DBMS_STATS provides the mechanism by which statistics are manipulated in the Oracle8 i database. This p...

Ngày tải lên: 08/08/2014, 22:20

... O RACLE 8 I P AGE V Data Warehousing 201 27 Hour 1: 27 Oracle8 i Features 27 Objectives: 27 Oracle8 i SQL Enhancements for Data Warehouses 27 Oracle8 i Data Warehouse Table Options 31 Oracle8 i ... Data Warehousing 68 The DBMS_SUMMARY Package in Oracle8 i 74 DIMENSION Objects in Oracle8 i 81 Managing CPU Utilization for Data Warehouses in Oracle8 i 84 Res...

Ngày tải lên: 08/08/2014, 22:20

... application to the data warehouse 5. Discuss high-speed loading techniques available in Oracle7 Oracle7 Data Warehouse related Features Use of Partitioned Views In late Oracle7 releases the ... so on.) Data Warehouse Structure Objectives: The objectives of this section on data warehouse structure are to: 1. Provide the student with a grounding in schema layout for...

Ngày tải lên: 08/08/2014, 22:20

... use in data warehouses 6. Discuss advanced resource management through plans and groups. 7. Discuss the use of row level security and data warehousing Oracle8 i SQL Enhancements for Data Warehouses ... O RACLE 8 I P AGE 27 Data Warehousing 201 Hour 1: Oracle8 i Features Objectives: The objectives for this section on Oracle8 i features are to: 1. Discuss SQL optio...

Ngày tải lên: 08/08/2014, 22:20

... in the user statistics table IMPORT_DATABASE_STATS The purpose of the import_database_stats procedure is to retrieve statistics for all objects in the database from the user statistics table(s) ... ORA-20000: Object does not exist or insufficient privileges EXPORT_DATABASE_STATS Retrieves statistics for all objects in the database and stores them in the user statistics tables identifie...

Ngày tải lên: 08/08/2014, 22:20

... M ONOGRAPH D ATA W AREHOUSING AND O RACLE 8 I P AGE 62 Stabilizing Execution Plans in a Data Warehouse in Oracle8 i In versions of Oracle prior to Oracle8 i the only way to stablize an execution ... later versions of Oracle7 and in Oracle8 and Oracle8 i, snapshots can be made updatable. As was stated above, the new materialized view is actually a special form of “sam...

Ngày tải lên: 08/08/2014, 22:20

... VARCHAR2(255) SEARCH_COLUMNS NUMBER ID NUMBER( 38) PARENT_ID NUMBER( 38) POSITION NUMBER( 38) COST NUMBER( 38) CARDINALITY NUMBER( 38) BYTES NUMBER( 38) OTHER_TAG VARCHAR2(255) PARTITION_START ... the specified dimension is not available. DIMENSION Objects in Oracle8 i DIMENSION objects are used in data warehouse, DSS and Datamart type applications to provide informat...

Ngày tải lên: 08/08/2014, 22:20

... B OOKS M ONOGRAPH D ATA W AREHOUSING AND O RACLE 8 I P AGE 103 Restricting Access by Rows in an Oracle8 i Data Warehouse New to Oracle8 i is the concept of row level access restriction. ... user or group membership. Oracle has finally given DBAs the functionality of conditional grants in the form of row level security. In a data warehouse there may be data that i...

Ngày tải lên: 08/08/2014, 22:20

... SQL and PL/SQL for data loading 3. Discuss aggregation during loading of data warehouses Loading Techniques In Oracle7 , Oracle8 and Oracle8 i the standard way to load a data warehouse involves ... Overview of Oracle Express Server The Oracle Express system is divided into four main areas, the Oracle Express Server, the Oracle Express Analyzer, the Oracle Express Ad...

Ngày tải lên: 08/08/2014, 22:20