PLP Primary keys: SYSID

035: Control number of a system other than the one whose control number is contained in field 001.
LC Documentation

This match key allows you to match records using a library's control number.

The data extracted for this key is determined by a special option. See 'SYSID PREFIX' below.

[TO DO]

When the SYSID match key is added to a config, the following option form is displayed:

As many records have several 035 fields, we use the PREFIX option to tell PLP which 035 fields to extract. Enter the library prefix¹⁾ used in the 035 field of the records you want to match.

The prefix should be entered as it appears in the data, and not as it appears in a normalized index. For example, enter:

(nzNZBN)

not:

NZNZBN

PLP will handle normalization when the query is prepared.

If, on the other hand, you do not want to restrict matching by a prefix, enter '0' in the prefix box. This will cause PLP to query all 035 fields in the record, regardless of their prefix.

Any 035 that lacks a prefix will be ignored by this match key.

OCLC numbers (any 035 field with a prefix of '(OcoLC)') are always ignored by this match key.

To change the setting for the prefix once the SYSID key has been added to a config, click on the 'SYSID PREFIX' button beneath the Primary Keys List (Note that the SYSID key must be selected in the Primary Keys List before this button will display):