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    How to retrieve records where subfield $a is missing in 461 tag

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    • Article Type: General
    • Product: Aleph
    • Product Version: 20

    Desired Outcome Goal:
    *Retrieve records where the subfield $a is missing for tag 461 (only subfields $1 are present)

    Procedure:
    * Run Retrieve Catalog Records (ret-01) for retrieve all the records that contain 461 field
    * Run Retrieve Catalog Records (ret-01) for retrieve only records where 461 field has subfield $a
    * Use the outputs of the previews services as input in the Cross Files(ret-10) service selecting the Boolean operator "NOT"
    * "NOT" operator takes all the records that are in the first input file but not in the second input file.

    Category: GUI ILL (500)

    • Article last edited: 10/8/2013