17.05 - WITH Modifiers - 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 rules and restrictions are:
  • The only set operator that can appear in a recursive named query within a WITH modifier is UNION ALL.
  • The following elements cannot appear within a WITH or WITH RECURSIVE modifier:
    • WITH or WITH RECURSIVE modifier
    • TOP n operator
    • User-defined functions
  • The following elements cannot appear within a recursive statement in a WITH RECURSIVE modifier:
    • NOT IN or NOT EXISTS logical predicate
    • Aggregate functions
    • Ordered analytical functions
    • GROUP BY clause
    • HAVING clause
    • DISTINCT clause
    • Subqueries
    • Derived tables
  • You cannot specify a WITH modifier in the definitions of any of these database objects:
    • Triggers
    • Stored procedures
  • A recursive named query that does not have a recursive statement works like a nonrecursive named query.

    This request produces the same results as the request that specifies a nonrecursive named query in the WITH modifier:

         WITH RECURSIVE orderable_items (product_id, quantity) AS (
         SELECT stocked.product_id, stocked.quantity
         FROM stocked, product
         WHERE stocked.product_id = product.product_id
         AND   product.on_hand > 5)
         SELECT product_id, quantity
         FROM orderable_items
         WHERE quantity < 10;