17.05 - Logging Problematic Queries - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Manipulation Language

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
Release Date
January 2021
Content Type
Programming Reference
Publication ID
B035-1146-175K
Language
English (United States)

The recommended best practice for logging problematic DML requests (queries) is to specify XMLPLAN logging whenever you submit the queries. The XMLPLAN option captures (logs) the query plan generated by the Optimizer as an XML document that can be used by Teradata support tools to diagnose performance issues with the query. The query plan is stored in the DBC.DBQLXMLTbl system table. For information on how to capture query plans for DML requests using the XMLPLAN option, see BEGIN QUERY LOGGING in Teradata Vantage™ - SQL Data Definition Language Detailed Topics , B035-1184 . For information about the BEGIN QUERY LOGGING statement syntax and descriptions of the statement options, see Teradata Vantage™ - SQL Data Definition Language Syntax and Examples, B035-1144.