NSELECT

NSELECT

Top  Previous  Next

 

The NSELECT command refines a select list by removing items that are in a named file.

 

 

Format

 

NSELECT { DICT } file  { FROM from.list }  { TO to.list }

 

where

 

DICTindicates that the dictionary portion of the file is to be used.

 

fileidentifies the file to be processed.

 

from.listis the select list to be used as the source of record ids to be checked against file. If omitted, the default list (list 0) is used.

 

to.listis the select list to be receive the modified list. If omitted, the default list (list 0) is used.

 

 

The NSELECT command refines the source select list by removing from it any items that correspond to record ids present in the named file.

 

 

Example

 

SELECT VOC

NSELECT NEWVOC

LIST VOC

 

The above sequence of commands builds a list of all records in the VOC file, removes from this list all items present in NEWVOC and then lists the remaining VOC records. The effect is to show those VOC records added since the account was created.