Oracle® DBA Guide to Data Warehousing and Star Schemas

Partition Option Benchmarks

The natural question is which of these many techniques is best? Well, that all depends. You must weigh the options with regard to the nature of your data. What works best in one case may not work at all in another. That said, here's what I found on the 7-Eleven data warehouse (shown in Table 8-1).

Table 8-1. Performance Charcteristics for Various Table Implementation Options

Fact Implementation	Timing
Non-Partitioned Table	9,293
Range Partitioned Table	4,747
Multi-Column Range Partitioned Table	4,987
Range-Hash Partitioned Table	6,319
Range-List Partitioned Table	4,820
Non-Partitioned IOT[1]	12,508
Range Partitioned IOT	14,902

^[1] IOT stands for index organized table. This is a table in Oracle where both the table and its index are ...