16.20 - Example: Recollecting Statistics Without Specifying Thresholds - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Definition Language Syntax and Examples

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Published
March 2019
Language
English (United States)
Last Update
2019-05-24
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Subsequent entry of the following request on the same table refreshes the statistics for the empno -name index, along with any other statistics previously collected for the employee table, including PARTITION statistics.

     
COLLECT STATISTICS ON employee;

The following request collects statistics on o_orderstatus for the first time without specifying a THRESHOLD option. Teradata Database collects the statistics and the system uses the SYSTEM THRESHOLD, which is the default threshold option when DBSControl fields DefaultUserChangeThreshold, SysChangeThresholdOption, and DefaultTimeThreshold are not set.

     COLLECT STATISTICS
     COLUMN o_orderstatus
     ON orders;