You must specify an operating environment definition statement, extraction redefinition statements, and extraction statements, in this order. The figure below shows the structure of an update information definition. The table below shows the contents of an update information definition and the permitted number of specifications.

Figure 5-11 Structure of an update information definition

Table 5-22 Contents of an update information definition and the permitted number of specifications

Definition name	Definition statement	Permitted number of specifications	Description
Operating environment definition statement	filetype statement	1	Specifies the file type subject to processing.
Extraction redefinition statement	restruct statement	0-4096	To redefine multiple fields as one field or one field as multiple fields, this statement specifies the redefinition field name, data start position, field attribute, and length for each dataset.
Extraction statement	extract statement	1-4096	Specifies the DBM, dataset, field, update information name, and mapping key subject to extraction processing.

/* Operating environment definition statement */
filetype PDM
 
/* Extraction redefinition statement */
[{{ restruct DBM-name.dataset-name
    {{ field redefined-field-name [position data-start-position]
       attr redefined-field-attribute(length)[not null]}} ...}} ...]
 
/* Extraction statement */
{{ extract DBM-name.dataset-name
    ({ { field-name|redefined-field-name }
    [ {{,{ field-name|redefined-field-name }}} ...]|* })
  to update-information-name
  key({ field-name|redefined-field-name }
  [{{ ,{ field-name|redefined-field-name }}} ...])}} ...
;