Usage Notes - Advanced SQL Engine - Teradata Database

Data Dictionary

Product
Advanced SQL Engine
Teradata Database
Release Number
17.00
Published
June 2020
Language
English (United States)
Last Update
2020-10-15
dita:mapPath
yoz1556235523563.ditamap
dita:ditavalPath
lze1555437562152.ditaval
dita:id
B035-1092
lifecycle
previous
Product Category
Teradata Vantageā„¢

Referenced Columns

Many of the Data Dictionary view columns have referenced table columns. That is, the value in the view column corresponds to a value in the selected column referenced in the table. It would be meaningful to join the view and the referenced table based on the selected column and the referenced column.

Referenced columns for this view are:

View Column Referenced Column
IndexNumber DBC.Indexes.IndexNumber

IndexNumber

The IndexNumber field contains the index number when statistics are collected on an index. Otherwise, it is NULL.

MaxInterval and MaxValueLength

If these statistics are collected with system determined maximum intervals and maximum value length, the MaxInterval and MaxValueLength columns are NULL.

SampleSizePct

If sampling is not used, the SampleSizePct column is set to 0 or 100.

StatsSource

The StatsSource column records the method by which this statistic is acquired. For information about the possible values for the StatsSource column, see "StatsSource Column."