HUT Locks in Copy and Restore Operations - Data Stream Architecture

Teradata Data Stream Architecture (DSA) User Guide
Product
Data Stream Architecture
Release Number
15.11
Published
December 2016
Language
English (United States)
Last Update
2018-04-17
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B035-3150
lifecycle
previous
Product Category
Software
Teradata Tools and Utilities

Restore and copy operations apply exclusive utility (HUT) locks on all objects to be restored or copied.

SQL User-Defined Function

When you copy an SQL User-Defined Function, the corresponding DBC.DBASE row is locked with a write hash lock. This prevents the user from using any Data Definition Language on that database for the dictionary phase of the copy operation.