Get a List of all Primary Keys in a Database

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囚心锁ツ
囚心锁ツ 2021-02-02 00:21

Is this the best way to - Get a List of all Primary Keys in a Database - or is there something better?

SELECT
KCU.TABLE_NAME AS Table_Name,
KCU.CONSTRAINT_NAME A         


        
5条回答
  •  栀梦
    栀梦 (楼主)
    2021-02-02 00:27

    If you want the data type information as well:

    SELECT 
        so.name 'Table Name',
        c.name 'Column Name',
        t.Name 'Data type',
        c.max_length 'Max Length',
        c.precision ,
        c.scale ,
        c.is_nullable,
        ISNULL(i.is_primary_key, 0) 'Primary Key'
    FROM    
        sys.columns c
    INNER JOIN 
        sys.types t ON c.user_type_id = t.user_type_id
    LEFT OUTER JOIN 
        sys.index_columns ic ON ic.object_id = c.object_id AND ic.column_id = c.column_id
    LEFT OUTER JOIN 
        sys.indexes i ON ic.object_id = i.object_id AND ic.index_id = i.index_id
    INNER JOIN 
        sysobjects so ON c.object_id = so.id
    WHERE
        i.is_primary_key = 1 and 
        so.xtype = 'U'
    Order By 'Table Name', 'Column Name'
    

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