16.20 - LOCKING Request Modifier - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Manipulation Language

prodname
Teradata Database
Teradata Vantage NewSQL Engine
vrm_release
16.20
created_date
March 2019
category
Programming Reference
featnum
B035-1146-162K

Purpose

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® Archive/Recovery Utility Reference, B035-2412
  • Teradata Vantage™ - Database Utilities , B035-1102

Required Privileges

None.

Syntax