Rampant TechPress Oracle Data Warehouse Management PHẦN 1 ppsx

... Data Warehouse Aggregate Operations 11 Data Warehouse Structure 11 Objectives: 11 Schema Structures For Data Warehousing 11 Oracle and Data Warehousing 15 Hour 2: 15 Oracle7 Features 15 ... 10 8 Hour 2: 11 2 Data Warehouse Loading 11 2 IMPORT-EXPORT 11 5 Data Warehouse Tools 11 8 An Overview of Oracle Express Server 11 8 An Overview of Oracle Dis...

Ngày tải lên: 08/08/2014, 22:20

... P AGE 27 Data Warehousing 2 01 Hour 1: Oracle8 i Features Objectives: The objectives for this section on Oracle8 i features are to: 1. Discuss SQL options applicable to data warehousing ... 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 f...

Ngày tải lên: 08/08/2014, 22:20

... ORA-200 01: Invalid or inconsistent values 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 ... estimate_percent - Percentage of rows to estimate (NULL means compute.) The valid range is [0.0000 01, 100). This value may be increased automatically to achieve better results. ...

Ngày tải lên: 08/08/2014, 22:20

... 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 plan was to ensure ... 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 “same database” sn...

Ngày tải lên: 08/08/2014, 22:20

... P AGE 15 Oracle and Data Warehousing Hour 2: Oracle7 Features Objectives: The objectives for this section on Oracle7 features are to: 1. Identify to the student the Oracle7 data warehouse ... 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

... 33 STORE IN (data_ tbs1, data_ tbs2, data_ tbs3, data_ tbs4) (PARTITION q1 _19 99 VALUES LESS THAN (TO_DATE(' 01- apr -19 99', 'dd-mon-yyyy')), PARTITION q2 _19 99 VALUES LESS ... 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 warehou...

Ngày tải lên: 08/08/2014, 22:20

... EXT_TO_OBJ SYSTEM 4 86 016 SYS HIST_HEAD$ SYSTEM 3 45056 SYS IDL_CHAR$ SYSTEM 7 368640 SYS IDL_SB4$ SYSTEM 9 802 816 SYS IDL_UB1$ SYSTEM 14 58 613 76 SYS IDL_UB2$ SYSTEM 13 3 915 776 SYS OBJ$ SYSTEM ... SOURCE$ SYSTEM 18 29503488 SYS SYN$ SYSTEM 3 45056 SYS VIEW$ SYSTEM 10 11 919 36 20 rows selected. Execution Plan 0 SELECT STATEMENT Optimizer=CHOOSE 1 0 VIEW OF ‘TEST...

Ngày tải lên: 08/08/2014, 22:20

... 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 important to their ... 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 con...

Ngày tải lên: 08/08/2014, 22:20

... M ONOGRAPH D ATA W AREHOUSING AND O RACLE 8 I P AGE 10 3 Restricting Access by Rows in an Oracle8 i Data Warehouse New to Oracle8 i is the concept of row level access restriction. For ... 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 is re...

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 ... O RACLE 8 I P AGE 11 2 Hour 2: Data Warehouse Loading The objectives of this section are to: 1. Show the new features of Oracle SQL*Loader that help with data loa...

Ngày tải lên: 08/08/2014, 22:20