Oracle Dominates Data Warehousing Survey: Legacy Databases Take a Dive

摘要

Aclose look at the TDWI-Forrester Quarterly Technology Survey of 290 data warehouse (DW) users shows that there are multiple winners in the dynamic and growing market for data warehousing based on the dominant design of the relational database. In the 18 months between our last survey in May 2003 (not shown) and the August 2004 survey (see Figure 1): 1. Oracle has increased its installed base from 42% to 44%. 2. Microsoft SQL Server has increased its installed base from 19% to 21%. 3. IBM's DB2 has increased its installed base from 14% to 18%. 4. Sybase has increased its installed base from 1% to 2%. 5. MySQL and PostgreSQL - open source database management systems (DBMSs) - are now on the radar, registering a combined total of just less than 2%. 6. Teradata continues to hold its own at 8%.