This includes bibliographic files and some files that are considered structure files, but generally does not include files that contain purely numeric or factual data. In a multifile SDI you have an option to take advantage of STN's unique and powerful duplicate detection for all types of bibliographic records, including patents. You receive SDI results as soon as they are available from the files you have selected, minus duplicate records that you already received. The duplicate detection feature keeps a list of all records you have seen to date since you created the multifile SDI and eliminates any records you have already seen. The first record retrieved is used as the basis for duplicate detection.
Duplicate removal works both within files and across files.
Multifile SDIs are delivered according to current single-file run schedules. You can choose a different SDI frequency run in each file. To set up a multifile SDI Monitor the most-current literature and patents on paperboard. Editing and deleting your multifile SDIs To modify multifile SDI parameters and queries, use the SDI EDIT command. This deletes the entire multifile SDI and the component SDIs that comprise it.