Creating a New Transaction-Time Table - Advanced SQL Engine - Teradata Database

Temporal Table Support

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
17.00
Published
June 2020
Language
English (United States)
Last Update
2021-01-23
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B035-1182
lifecycle
previous
Product Category
Teradata Vantage™

To create a transaction-time table, use a normal CREATE TABLE statement, and define one column of the table as a transaction-time column. The data type of the column can be derived from two TIMESTAMP(6) WITH TIME ZONE columns, or can be a single PERIOD(TIMESTAMP(6) WITH TIME ZONE) column, and must use the TRANSACTIONTIME or AS TRANSACTIONTIME column attribute. Transaction-time columns must also specify the NOT NULL column attribute.

Example: Creating a Derived Period Transaction-Time Table

   CREATE MULTISET TABLE Policy_Types (
      Policy_Name VARCHAR(20),
      Policy_Type CHAR(2) NOT NULL PRIMARY KEY,
      Policy_Start TIMESTAMP(6) WITH TIME ZONE NOT NULL,
      Policy_End TIMESTAMP(6) WITH TIME ZONE NOT NULL,
      PERIOD FOR Policy_Duration(Policy_Start,Policy_End)
         AS TRANSACTIONTIME
      )
   PRIMARY INDEX (Policy_Name);

Example: Creating a Period Data Type Transaction-Time Table

   CREATE MULTISET TABLE Policy_Types (
      Policy_Name VARCHAR(20),
      Policy_Type CHAR(2) NOT NULL PRIMARY KEY,
      Policy_Duration PERIOD(TIMESTAMP(6) WITH TIME ZONE) NOT NULL
         AS TRANSACTIONTIME
      )
   PRIMARY INDEX (Policy_Name);