其中有三列

Question

相同的數據返回行我有以下模式

CREATE TABLE [dbo].[personas](
    [id_persona] [int] IDENTITY(1,1) NOT NULL, 
    [nombres] [nvarchar](50) NOT NULL, 
    [apellido_paterno] [nvarchar](50) NULL, 
    [apellido_materno] [nvarchar](50) NULL, 
    [fecha_nacimiento] [date] NOT NULL, 
    [sexo] [varchar](1) NOT NULL, 
    [estado_civil] [nvarchar](50) NOT NULL, 
    [calle] [nvarchar](200) NULL, 
    [colonia] [nvarchar](100) NULL, 
    [codigo_postal] [char](5) NOT NULL, 
    [telefonos] [varchar](50) NULL, 
    [celular] [varchar](25) NULL, 
    [email] [varchar](50) NULL, 
) 

表我如何在SQL Server查詢返回那裏​​，apellido_paterno和apellido_materno重複行？我的意思是兩列或更多行在這些列中具有相同的數據。

我想我期待相反的東西DISTINCT子句

Answer 1

你想......

SELECT nombre, apellido_paterno, apellido_materno 
    FROM dbo.personas 
GROUP BY nombre, apellido_paterno, apellido_materno 
HAVING COUNT(*) > 1 

如果你想看看實際的行，然後用它作爲內部查詢，加入到它。所以，像

SELECT * 
    FROM personas pOuter INNER JOIN 
    (SELECT nombre, apellido_paterno, apellido_materno 
     FROM dbo.personas 
    GROUP BY nombre, apellido_paterno, apellido_materno 
    HAVING COUNT(*) > 1) pInner 
    ON pInner.nombre = pOuter.nombre 
    AND pInner.apellido_paterno = pOuter.apellido_paterno 
    AND pInner.apellido_materno = pOuter.apellido_materno 

Answer 2

;WITH x AS 
(
    SELECT id_personas, rn = ROW_NUMBER() OVER 
    (
    PARTITION BY nombre, apellido_paterno, apellido_materno 
    ORDER BY id_personas 
) 
    FROM dbo.personas 
) 
SELECT <col list> 
FROM dbo.personas AS p 
WHERE EXISTS 
(
    SELECT 1 FROM x 
    WHERE x.id_personas = p.id_personas 
    AND x.rn > 1 
);