16.20 - About Notation Conventions - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Operators and User-Defined Functions

Product
Advanced SQL Engine
Teradata Database
Release Number
16.20
Release Date
April 2020
Content Type
Administration
Programming Reference
Publication ID
B035-1210-162K
Language
English (United States)

This section describes the notation conventions used in this document.

Convention Description
Syntax Diagrams

Describes SQL syntax form, including options.

Square braces in the text

Represent options. The indicated parentheses are required when you specify options.

For example:

DECIMAL [(n[,m])] means the decimal data type can be defined

optionally:
  • without specifying the precision value n or scale value m
  • specifying precision (n) only
  • specifying both values (n,m)
You cannot specify scale without first defining precision.
  • CHARACTER [(n)] means that use of (n) is optional.

The values for n and m are integers in all cases.