945-949 Local Data (R)
Record Type |
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BIB |
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Input Standards |
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| Field (Full/Minimal) | |||
| Optional/Optional | |||
| 1st Indicator Defined for local use | |||
 , 0-9 |
Defined for local use | ||
| 2nd Indicator Defined for local use | |||
| , 0-9 |
Defined for local use | ||
| Subfields (R=Repeatable NR=Nonrepeatable) | Input Standards (Full/Minimal) | ||
| ǂa-ǂz | Defined for local use (R) | Optional/Optional | |
| ǂ0 | Defined for local use/Authority record control number or standard number (R) | Optional/Optional | |
| ǂ1 | Defined for local use/Real World Object URI (R) | Optional/Optional | |
| ǂ2 | Defined for local use/Source (R) | Optional/Optional | |
| ǂ3 | Defined for local use/Materials specified (R) | Optional/Optional | |
| ǂ4 | Defined for local use/Relationship (R) | Optional/Optional | |
| ǂ5 | Defined for local use/Institution to which field applies (R) | Optional/Optional | |
| ǂ6 | Linkage (NR) | System supplied/System supplied | |
| ǂ7 | Defined for local use/Control subfield (R) | Optional/Optional | |
| ǂ8 | Defined for local use/Field link and sequence number (R) | Optional/Optional | |
| ǂ9 | Defined for local use/Special entry (R) | Optional/Optional | |
Definition |
Local data. Fields 945-949 are not part of the standard MARC 21 format. You may define these fields to meet your needs. Before incorporating any of these local fields into your cataloging workflow, contact your local system vendor. Indiscriminate or inconsistent use of these fields may adversely affect the consolidation of records and local data needed in the creation of a local system database. With the exception of subfield ǂ6, the numeric subfields may be locally defined or used in accord with their control subfield definitions. At least one subfield from subfields ǂa-ǂz, ǂ0-ǂ5, or ǂ7-ǂ9 is mandatory when using fields 945-949. Fields 945-949 do not remain in the WorldCat record. They are retained in exported records and records delivered via other services. Field 910 and fields 901-907 may also be used for local data. For information on punctuation, see the Punctuation section below. |
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1st Indicator |
Defined for local use.
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2nd Indicator |
Defined for local use.
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Subfields |
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| ǂa-ǂz Defined for local use | Defined for local use. |
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| ǂ0 Defined for local use/ Authority record control number or standard number |
Defined for local use or as authority record control number or standard number. For information about subfield ǂ0 as authority record control number or standard number, see Control Subfields. |
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| ǂ1 Defined for local use/ Real World Object URI |
Defined for local use or as Real World Object URI. For information about subfield ǂ1 as Real World Object URI, see Control Subfields. |
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| ǂ2 Defined for local use/ Source |
Defined for local use or as source. For information about subfield ǂ2 as source, see Control Subfields. |
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| ǂ3 Defined for local use/ Materials specified |
Defined for local use or as materials specified. For information about subfield ǂ3 as materials specified, see Control Subfields. |
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| ǂ4 Defined for local use/ Relationship |
Defined for local use or as relationship. For information about subfield ǂ4 as relationship, see Control Subfields. |
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| ǂ5 Defined for local use/ Institution to which field applies |
Defined for local use or as institution to which field applies. For information about subfield ǂ5 as institution to which field applies, see Control Subfields. |
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| ǂ6 Linkage | Data that link fields when non-Latin script is entered. This subfield is system supplied and does not appear in OCLC online displays. Do not manually add subfield ǂ6. For more information about subfield ǂ6, see Control Subfields. |
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| ǂ7 Defined for local use/ Control subfield |
Defined for local use or as control subfield. For information about subfield ǂ7 as control subfield, see Control Subfields. |
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| ǂ8 Defined for local use/ Field link and sequence number |
Defined for local use or as field link and sequence number. For information about subfield ǂ8 used as field link and sequence number, see Control Subfields. |
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| ǂ9 Defined for local use/ Special entry |
Defined for local use or as special entry. For information about subfield ǂ9 as special entry, see Control Subfields. |
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Punctuation |
Include or omit punctuation as needed. For more information on punctuation, including OCLC policy, see section 2.8, Punctuation. |
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Indexing |
Fields 945-949 are not indexed. |
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MARC 21 |
Fields 945-949 are OCLC-defined and therefore not included in MARC 21 Format for Bibliographic Data. |
This page last revised: December 28, 2020