Example: System-Determined Sample Statistics - Analytics Database - Teradata Vantage

Database Administration

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2023-11-03
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lifecycle
latest
Product Category
Teradata Vantageā„¢

The following requests system-determined sample statistics on the o_orderdatetime column. The default sample percentage in DBS Control determines the number of rows sampled. Teradata collects full statistics and remembers the sample option. Teradata considers downgrading the sample percentage after the system captures enough history and the column is identified as eligible for sample statistics:

COLLECT STATISTICS
             USING SYSTEM SAMPLE
            COLUMN o_orderdatetime
                ON orders;