The extraction specifications of the Page Indexing Criteria define the location and length at which index data is to be extracted from a report page. A maximum of eight locations can be extracted from a page. The combined length cannot exceed 252 bytes. An index name can be specified for each location to identify uniquely the contents of the data. An index name is required for a cross report index.
Index data can be extracted from a fixed or floating location. If index data is to be extracted from a floating location, provide a search specification to locate the index data. The extraction specification refers to that search specification through a reference symbol in the form r+n where r is the reference symbol and n is the number of lines or columns from that relative location. For column fields, r-n can also be specified.
The extraction specifications are defined by the entries within the table. You can scroll the table entries up and down using the scroll commands. Entries in the table can be modified by simply overtyping. In addition, selection codes are available for inserting, deleting, repeating, copying, and moving entries.
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