Statistics about tables, columns and indexes are a critical component in producing good query plans.
This session will examine the different options that are available when collecting statistics, with an emphasis on the new USING clauses and other enhancements in Teradata 14.0. Statistics histograms will be detailed, and the important role that SUMMARY statistics play will be emphasized. The improved statistics extrapolation process and the ability to combine statistics collections into a single table scan will be covered. The session will wrap up with some general recommendations for statistics collection in Teradata 14.0.
Key Points:
- Learn the differences between statistics collection approaches
- Find out how the new Teradata 14.0 enhancement can benefit you
- Understand the new statistics collection recommendations for 14.0
Teradata Release information: Teradata 14.0
Presenter: Carrie Ballinger, Software Engineer – Teradata Corporation
Audience:
Data Warehouse Administrator, Data Warehouse Application Specialist; Data Warehouse Architect/Designer, Data Warehouse Technical Specialist
Channel: