LOCKING Request Modifier | SQL Statements | Teradata Vantage - LOCKING Request Modifier - 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
Language
English (United States)
Last Update
2024-04-05
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lifecycle
latest
Product Category
Teradata Vantage™

Locks a database, table, view, or row at the specified severity, overriding the default locking severity that the system places for a request. With the appropriate privileges, you can place this lock to upgrade or downgrade the default lock.

In addition to DML statements, you can also specify the LOCKING modifier with DDL statements including CREATE VIEW, REPLACE VIEW, CREATE RECURSIVE VIEW, REPLACE RECURSIVE VIEW, CREATE MACRO, and REPLACE MACRO. You can use the LOCKING modifier to override the default locking severities and prevent deadlocks.

For more information, see:
  • Teradata Vantage™ - SQL Request and Transaction Processing, B035-1142
  • Teradata® DSA User Guide, B035-3150
  • Teradata Vantage™ - Database Utilities, B035-1102

ANSI Compliance

LOCKING is a Teradata extension to the ANSI SQL:2011 standard.

Other SQL dialects support similar non-ANSI standard statements with names such as LOCK TABLE.

Required Privileges

None.