Example: Returning the Row Having the Oldest QITS Value in a Queue Table - Teradata Database - Teradata Vantage NewSQL Engine

SQL Data Manipulation Language

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Published
March 2019
Language
English (United States)
Last Update
2019-05-03
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fbo1512081269404.ditamap
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TD_DBS_16_20_Update1.ditaval
dita:id
B035-1146
lifecycle
previous
Product Category
Teradata Vantage™

This CREATE TABLE statement creates a queue table named shopping_cart:

     CREATE SET TABLE shopping_cart, QUEUE (
       cart_qits  TIMESTAMP(6) NOT NULL DEFAULT CURRENT_TIMESTAMP(6),
       product_id INTEGER,
       quantity   INTEGER )
   PRIMARY INDEX (product_id);

This SELECT AND CONSUME statement returns all the columns of the row with the oldest value in the cart_qits column of the shopping_cart table:

     SELECT AND CONSUME TOP 1 * FROM shopping_cart;