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Database .BAK file Export Failed

  • January 23, 2026
  • 7 comments
  • 26 views
waqasali
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While trying to export.BAK file while using Veeam Explorer, it gives the following message what could be the issue.

 

This same error appear by using instant recovery, recovering to the same location and alternate location, in addition to restore DB file to the same location and alternate location.

 

DB Unable to attach database. | Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression. | The statement has been terminated.

 

Waqas Ali

    7 comments

    waqasali
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    • waqasali
    • Author
    • On the path to Greatness
    • January 23, 2026

     

     

    Waqas Ali
    MicoolPaul
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    • MicoolPaul
    • January 23, 2026

    What is the name of the database? Does it have any special characters? Do you have any other databases with the same name?

    Michael Paul - Opinions are my own and do not necessarily reflect the opinion of Veeam | https://micoolpaul.com | Mastodon: @micoolpaul@masto.nu | Bluesky: @micoolpaul.com
      waqasali
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      • waqasali
      • Author
      • On the path to Greatness
      • January 23, 2026

      What is the name of the database? Does it have any special characters? Do you have any other databases with the same name?

       

      yes i have the DB with the same name but in another instance. 

      Waqas Ali
      matheusgiovanini
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      This error is not caused by a manual SQL Server operation, but by internal SQL queries executed by Veeam during restore workflows (Explorer and Instant Recovery).

      The message “Subquery returned more than 1 value” indicates that one of these internal queries returns multiple records where Veeam expects a single result, which causes the operation to fail.

      Since the issue occurs across all restore methods, opening a Veeam Support case is recommended so the failing query can be identified and checked for known issues or required hotfixes.

      Matheus Giuliano Giovanini | Senior Backup Analyst | Veeam Legend | Blog: techdirectarchive.com
        waqasali
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        • waqasali
        • Author
        • On the path to Greatness
        • January 27, 2026

        This error is not caused by a manual SQL Server operation, but by internal SQL queries executed by Veeam during restore workflows (Explorer and Instant Recovery).

        The message “Subquery returned more than 1 value” indicates that one of these internal queries returns multiple records where Veeam expects a single result, which causes the operation to fail.

        Since the issue occurs across all restore methods, opening a Veeam Support case is recommended so the failing query can be identified and checked for known issues or required hotfixes.

         

        i already open a case with support 

        Waqas Ali
        waqasali
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        • waqasali
        • Author
        • On the path to Greatness
        • January 27, 2026
        I exported the related database files (.MDL and .LDF) to another location as part of the troubleshooting process. The DB team then used these exported files, and the database issue has now been successfully resolved.
        Waqas Ali
        waqasali
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        • waqasali
        • Author
        • On the path to Greatness
        • January 27, 2026

        Thank you, guys, for your feedback on this question. 

        Waqas Ali
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