EXPLAIN and Embedded SQL - 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™

Use EXPLAIN only with data returning requests. EXPLAIN returns multiple rows of a single column whose data type is VARCHAR(80). Because it causes multiple rows to be returned, EXPLAIN can only be performed with a cursor.

For static execution of EXPLAIN, see Teradata Vantage™ - SQL Stored Procedures and Embedded SQL, B035-1148, substituting an EXPLAIN-modified SQL request for the query_expression clause shown there.

Do not perform EXPLAIN request modifiers dynamically because the result is unpredictable.