Skip to main content
  • Subscribe by RSS
  • Ex Libris Knowledge Center

    Oracle error: io_z103_write: unique constraint (XXX01.Z103_ID) violated

    • Article Type: Q&A
    • Product: Aleph
    • Product Version: 20


    After running „Create Links Between Records (manage-12)” error message
    "Oracle error: io_z103_write: unique constraint (XXX01.Z103_ID) violated"
    appears some times in the log file. Why? Error message occurs for records with linking field where the target record is not available.


    Message "unique constraint (SGB01.Z103_ID) violated" is a warning in this case because of the missing target record. It may be ignored.

    Category: Background processing (500)

    Subject: Indexing (500)

    • Article last edited: 10/8/2013