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For batch files containing 001 fields with a bare OCLC number or that has no useable 001, but does have 035 with OCLC numbers (OCoLC).

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1-MarcEdit

Clean up:

  • Delete any incorrect 001 fields (or 001s without prefixes) using Add/Delete Field

OCLC 001 number prefixes vary according to length:

The OCLC control number in field 001 is prefixed by ocm, ocn, or on.

OCLC numbers 1 through 99999999:

  • Have an ocm prefix

  • Composed of 8 digits, right justified, with leading zeros

  • Followed by a blank

OCLC numbers 100000000 and higher:

  • Have an ocn prefix

  • Composed of 9 digits

OCLC numbers 1000000000 and higher:

  • Have an on prefix

  • Composed of 10 or more digits

ocm00012345

ocn123456789

on1345345345

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  • While the Find all: screen is open

  • image-20240419-185529.png
  • Find the copy icon in the lower left side and click on it

    image-20240419-185616.png

3-Excel

  • And paste the copied find all text

  • image-20240419-185853.png
  • Clean up the text to just the OCLC number with the search of an asterix in front of it.

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  • Save it with an easy to find name

4-CONNEXION

Batch; Enter bibliographic search keys

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  • Do an F3; Return key search of the local save file; select the first bib; scroll to the end and Ctrl-Shift-Click to select entire file

  • Might as well go ahead and set our Holdings; Update Holdings

  • Export and give it an easy to find name: OCLCforGPOpilot001s or similar

  • It will have the suffix of .dat

MarcEdit

If you do MarcBreaker on it, you will see the lovely prefixed 001s

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  • Source file: the OCLC records with their proper 001 fields

  • Merge file: the GPO pilot project records (deleted 001s)

  • Save file: the new merged file name

  • Next

    • Select the 001 field only

    • Next

    • image-20240419-193543.png

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  • Click Edit records

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