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Asked: 2026-06-05T18:44:35+00:00

I know that can’t use left join in indexed view. but I don’t understand

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I know that can’t use left join in indexed view. but I don’t understand why?

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  1. Editorial Team

    Q. Why can’t I use OUTER JOIN in an indexed view?

    A. Rows can logically disappear from an indexed view based on OUTER JOIN when you insert data into a base table. This makes
    incrementally updating OUTER JOIN views relatively complex to
    implement, and the performance of the implementation would be slower
    than for views based on standard (INNER) JOIN.

    Credits go to http://blog.sqlauthority.com/2009/09/25/sql-server-outer-join-in-indexed-view-question-to-readers/

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