Data Definition Language (DDL) Reference Manual

DDL Language Elements
Data Definition Language (DDL) Reference Manual—529431-004
2-16
Statements
Statements
Each of the DDL statements in Table 2-3, DDL Statements That Define or Replace
Objects, on page 2-17:
•
Defines or replaces an object in the open dictionary, where other DDL statements
can use it
•
If a source code file is open, translates the definition of the object to the language
of the source code file and write the definition to the source code file
The DDL statements in Table 2-4, DDL Statements That Display Objects, on
page 2-17 display objects that are in the open dictionary.
The statement DELETE on page 8-1 deletes specified objects from the open
dictionary.
The statement EXIT on page 8-4:
•
Ends the DDL session
•
Closes any files that were opened in the session
•
Returns control to the command interpreter
Syntax rules for DDL statements:
•
Every simple statement except EXIT must end with a period.
•
Every compound statement must end with END, optionally followed by a period.
These are compound statements:
°
Field DEFINITION statements that include BEGIN
°
Group DEFINITION statements
°
RECORD statements
°
TOKEN-MAP statements
•
An input line can include more than one statement.
•
Statements can continue on succeeding input lines without any continuation
character.