Oracle DBAs finally have a definitive guide to every aspect of designing, constructing, tuning, and maintaining star schema data warehouses with Oracle 8i and 9i. Bert Scalzo, one of the world's leading Oracle data warehousing experts, offers practical, hard-won lessons and breakthrough techniques for maximizing performance, flexibility, and manageability in any production environment. Coverage includes:
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1.What Is a Data Warehouse?
The Nature of the Beast. Data Warehouse vs. Big Database. Operational Data Stores Don't Count. Executive Information Systems Don't Count. Warehouses Evolve without Phases. The Warehouse Roller Coaster.
Business Intelligence Options. Oracle Version Options. Oracle Instance Options-Querying. Oracle Instance Options-Loading. Recommended Oracle Architecture. Great Operating System Debate. The Great Programming Language Debate. The Serial vs. Parallel Programming Debate.
Four Basic Questions. How Many CPUs? How Much Memory? How Many of What Disks? Recommended Hardware Architecture. The Great Vendor Debate. The 32- vs. 64-Bit Oracle Debate. The Raw vs. Cooked Files Debate. The Need for Logical Volume Managers.
The Rationale for Stars. Star Schema Challenges. Modeling Star Schemas. Avoid Snowflakes. Dimensional Hierarchies. Querying Star Schemas. Fact Table Options. When Stars Implode.
Key Tuning Requirements. Star Optimization Evolution. Star Transformation Questions. Initialization Parameters. Star Schema Index Design. Cost-Based Optimizer. Some Parting Thoughts.
What About ETL Tools? Loading Architecture. Upstream Source Data. Transformation Requirements. Method 1: Transform, Then Load. Method 2: Load, Then Transform. Deploying the Loading Architecture.
What Aggregates to Build? Loading Architecture. Aggregation by Itself. Use Materialized Views.
A Plethora of Design Options. Logical Partitioning Design. Simple Partitioning in 8i. Simple Partitioning in 9i. Complex Partitioning in 8i. Complex Partitioning in 9i. Partition Option Benchmarks.
Backup and Recovery. Space Management. Extent Management. Updates and Patches.
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