Data Definition Language (DDL) Reference Manual

DDL Language Elements
Data Definition Language (DDL) Reference Manual—529431-004
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Commands
Commands
DDL commands instruct the DDL compiler to perform specific actions. DDL commands
consist of one or more keywords. Some commands also have one or more parameters
to further control the action of the command. For syntax of individual DDL commands,
see Section 9, DDL Compiler Commands.
Rules for DDL commands:
•
A command or sequence of commands can be either part of a DDL schema or a
parameter in a RUN DDL command.
•
An input line that consists of a command or sequence of commands must begin
with a question mark (?).
•
More than one command can be specified on an input line or in a RUN DDL
command. Multiple commands must be separated by commas. Only the first
command on an input line is preceded by a question mark.
•
A command input line cannot include comments or statements.
•
If a command or sequence of commands continues on the next input line, the first
character in the next line must be a question mark.
•
A single command cannot end with a period or any other punctuation mark.