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BI SQL # 155 : SQL Server DBA Scripts : Foreign Keys Overview

Hi Geeks,

In this article we are going to cover all Foreign Keys Overview.

In this post we are going to discuss following points:

  • Problem Statement of SQL Script:
  • Description of SQL Script:
  • SQL Script Output Column
  • SQL Script Code
  • SQL Script Output Screenshot
  • User Level to execute

    Problem Statement of SQL Script:

    Get foreign key overview.

    Description of SQL Script:

    This Transact-SQL script lists all foreign key details.

    SQL Script Output Column

    image

    SQL Script Code

    SELECT FK.NAME AS ForeignKeyName
        ,FK.delete_referential_action_desc AS DeleteAction
        ,FK.update_referential_action_desc AS UpdateAction
        ,FK.is_disabled AS IsDisabled
        ,FK.is_not_trusted AS IsNotTrusted
        ,IDX.NAME AS IndexName
        ,PARSCH.NAME + '.' + PAR.NAME AS ParentName
        ,PARCOL.NAME AS ParentColumn
        ,REFSCH.NAME + '.' + REF.NAME AS ReferenceName
        ,REFCOL.NAME AS ReferenceColumn
    FROM sys.foreign_keys AS FK
    INNER JOIN sys.foreign_key_columns AS FKC ON FK.object_id = FKC.
        constraint_object_id
    INNER JOIN sys.objects AS PAR ON FKC.parent_object_id = PAR.
        object_id
    INNER JOIN sys.schemas AS PARSCH ON PAR.schema_id = PARSCH.
        schema_id
    LEFT JOIN sys.indexes AS IDX ON FKC.parent_object_id = IDX.
        object_id
        AND FK.key_index_id = IDX.index_id
    INNER JOIN sys.columns AS PARCOL ON FKC.parent_object_id = PARCOL.
        object_id
        AND FKC.parent_column_id = PARCOL.column_id
    INNER JOIN sys.objects AS REF ON FKC.referenced_object_id = REF.
        object_id
    INNER JOIN sys.schemas AS REFSCH ON REF.schema_id = REFSCH.
        schema_id
    INNER JOIN sys.columns AS REFCOL ON FKC.referenced_object_id = 
        REFCOL.object_id
        AND FKC.referenced_column_id = REFCOL.column_id
    ORDER BY ParentName
        ,ForeignKeyName
        ,ParentColumn
        ,ReferenceName
        ,ReferenceColumn

    SQL Script Output Screenshot

    image

    User Level to execute

    200

    Hope you will like Foreign Keys Overview.

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