file label item

A file label item is a special file definition item used in multi-file table support. Multi-file table support allows the records of more than one COBOL file to be combined to constitute the rows of a single table. A file label item controls the way in which the records are combined, and provides a way to distinguish the business unit from which the row originated in the ODBC application.

A given FD may have only one file label item. A file label item can have a column defined on it and this column will be part of the indexes defined on the table.