Returns a list comprising all values contained only once in all the items referenced. A value contained more than once in an item will not be returned.
XOR-ITEMS file-specifier {item-list}
file-specifier specifies a file as defined in General Conventions.
item-list is a list of item-ids or an asterisk (*) for all items, or can be omitted if provided by an active list from a preceding list-generating command.
Uniqueness of values in an item can be guaranteed by sorting the list with the NEW-SORT-LIST command and specifying the U option.
:XOR-ITEMS SUSPECTS ATHOME ATTIME42 Items selected. >SAVE-LIST QLIST[241] 'QLIST' Cataloged.
All values that appear only once in items ATHOME and ATTIME of file SUSPECTS are now in list QLIST.
:XOR-ITEMS CUSTOMERS LIFE CASUALTY MARINE73 Items selected. >SAVE-LIST CALL[241] 'CALL' Cataloged.
The list in CALL contains all values that were in only one of the items LIFE, CASUALTY, and MARINE in file CUSTOMERS.