Transaction Processing Semantics - Analytics Database - Teradata Vantage

SQL Data Manipulation Language

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
ft:locale
en-US
ft:lastEdition
2024-12-13
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esx1472246586715
lifecycle
latest
Product Category
Teradata Vantageā„¢
Multiple SELECT AND CONSUME statements can appear in a transaction when:
  • The session mode is ANSI.
  • The session mode is Teradata and the SELECT AND CONSUME statements appear between BEGIN TRANSACTION (BT) and END TRANSACTION (ET) statements.

A SELECT AND CONSUME statement can consume any rows inserted into a queue table within the same transaction.

When performing SELECT AND CONSUME statements:
  • Perform SELECT AND CONSUME statements early in a transaction to avoid conflicts with other database resources.
  • Perform one SELECT AND CONSUME statement per transaction, if possible.