Working with Data Models › Macro Toolbox › Macro Syntax

Macro Syntax

The erwin DM macro syntax commands are composed of keywords, punctuation, and parameters.

• Keywords always start with a percent sign (%) and must be entered exactly as shown.
• Punctuation includes braces {}, parentheses (), and commas. You use: braces to specify results, what you want to do based on the keyword and the parameters; parentheses to specify parameters, and commas to separate parameters if you include more than one parameter in a command. To display the expanded code in a list, place the end brace on a new line in the syntax, as shown below.

• Parameters are shown in angle brackets. You can replace parameters with your own text, number, SQL code, or other erwin DM macros by typing the macro command in a trigger, stored procedure, or script.

Here is an example of syntax at work using the %ChildAtts macro:

%ChildAtts

Lists all the attributes of the child entity in a relationship and performs the specified action on each one.

Full Syntax

%ChildAtts(<separator>,<action>, <prefix>)

Full Syntax Example

/*If the current relationship is <is in stock as>, then */

%ChildAtts(" or ",update)

Expansion

update(movie_copy_number) or

update(master_number) or

…

Usage

Relationship macro-can be used in RI or Rel Override.

The following provides a graphical display of the example: