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994 OCLC-MARC Transaction Code (NR)
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Input Standards |
| Required if applicable/Required if applicable |
| 1st Indicator Undefined |
 |
Undefined |
| 2nd Indicator Undefined |
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Undefined |
| Subfields (R=Repeatable NR=Nonrepeatable) |
Input Standards |
| ‡a |
Transaction code (NR)
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Required if applicable/Required if applicable |
| ‡b |
Institution symbol (NR)
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Required if applicable/Required if applicable |
Definition |
Field 994 contains the codes that identify the transaction that created the record. Field 994 is system generated on export or OCLC-MARC record output. This field cannot be edited or input manually. |
| History |
The history of the fields in which transaction codes have been stored:
| Date |
Transaction codes stored in |
| Before June 6, 1999 |
Leader byte 22 (Transaction Type Code) |
| June 6, 1999-December 31, 1999 |
Field 994 and Leader byte 22
Note: This was the transitional period during which field 994 was implemented in various OCLC products and services at various times. Transaction codes continued to be stored in Leader byte 22 during this time. |
| January 1, 2000-November 11, 2006 |
Field 994 and Leader byte 22 |
| November 12, 2006-present |
Field 994
Note: Connexion client 1.60 used both field 994 and Leader byte 22 until it was discontinued on April 1, 2007. |
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1st Indicator |
Undefined. The 1st indicator position is undefined and contains a blank ( ). |
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Undefined | |
2nd Indicator |
Undefined. The 2nd indicator position is undefined and contains a blank ( ). |
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Undefined | |
Subfields |
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‡a Transaction code |
A 2-character code that identifies the transaction that created the record. Transaction codes and types are given below: |
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| Code |
Type |
| 01 |
Produce |
| 02 |
Update |
| 03 |
Delete Holdings |
| 10 |
Add |
| 11 |
Replace |
| 12 |
Delete |
| 50 |
All produce |
| 90 |
Offline retrieve |
| 91 |
Offline produce |
| 92 |
Offline update |
| 93 |
Offline delete holdings |
| A1 |
Bibliographic Record Snapshot (formerly, Local Database Creation, PRISM Keying Service record creation
1) |
| C0 |
Exported from Connexion (formerly, CORC
1) |
| E0 |
Exported from OCLC Cataloging Service (formerly, e) |
| X0 |
Exported from CatME or OCLC CJK (formerly, x)
1 |
| Z0 |
Z39.50 Cataloging records |
1 Discontinued service(s)
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‡b Institution symbol |
OCLC institution symbol for the institution generating the transaction. |
Catalog card printing |
Field 994 does not print. |
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