Question

INSERT INTO dbo.SummerCourse(AgeMax, AgeMin, CashDiscount, EndCourse, InitCourse, Link,
     Name, Photo, SchoolId, ThematicId, SalesforceId)
SELECT 16, 6, '2019-07-02 00:00:00.0000000', '2019-07-27 00:00:00.0000000',
       '2018-07-02 00:00:00.0000000', 'ww.link.com', S.Nombre_Convocatoria,
       'img-little.jpg', S.IdCentro, 4, '01s4E00001222AQQAY'
FROM dbo.AuxTab S 
WHERE  S.Nombre_Convocatoria NOT IN (SELECT Name FROM dbo.SummerCourse);

我想从aux db插入，只是第一次出现s.Nombre_Convocatoria，现在第一次脚本添加17行（每个名称多次），第二次0但是应该只添加7第一次排，第二次排0。谢谢

实施例 SummerCourse有列名和更多，auxtab有列（nombre convocatoria）以及更多我想只添加第一次名称在auxtab中＆＃34;佩佩＆＃34; ＆＃34;路易斯＆＃34; ＆＃34;路易斯＆＃34; ＆＃34;路易斯＆＃34; ＆＃34;添＆＃34; ＆＃34;添＆＃34; 所以SummerCourse应该只有Pepe，Luis，Tim行

Answer 1

使用ROW_NUMBER()每个名称只需1个。

;WITH NameRanking AS
(
    SELECT
        S.*,
        NameRanking = ROW_NUMBER() OVER (PARTITION BY S.Nombre_Convocatoria ORDER BY (SELECT NULL)) -- Your ordering criteria here
    FROM
        dbo.AuxTab AS S
)
INSERT INTO dbo.SummerCourse(AgeMax, AgeMin, CashDiscount, EndCourse, InitCourse, Link,
     Name, Photo, SchoolId, ThematicId, SalesforceId)
SELECT 16, 6, '2019-07-02 00:00:00.0000000', '2019-07-27 00:00:00.0000000',
       '2018-07-02 00:00:00.0000000', 'ww.link.com', S.Nombre_Convocatoria,
       'img-little.jpg', S.IdCentro, 4, '01s4E00001222AQQAY'
FROM NameRanking S 
WHERE  
    S.Nombre_Convocatoria NOT IN (SELECT Name FROM dbo.SummerCourse) AND
    S.NameRanking = 1

如果您需要为每个名称插入特定行，请修改ORDER BY中的OVER()以确定哪一行先行。

Answer 2

考虑到S.IdCentro是int并且需要取最小值。

INSERT INTO dbo.SummerCourse(AgeMax, AgeMin, CashDiscount, EndCourse, InitCourse, Link,Name, Photo, SchoolId, ThematicId, SalesforceId)
SELECT 16, 6, '2019-07-02 00:00:00.0000000', '2019-07-27 00:00:00.0000000','2018-07-02 00:00:00.0000000', 'ww.link.com', S.Nombre_Convocatoria,'img-little.jpg', MIN(S.IdCentro), 4, '01s4E00001222AQQAY' 
        FROM dbo.AuxTab S 
        Group By S.Nombre_Convocatoria
        Having S.Nombre_Convocatoria 
        NOT IN (SELECT Name FROM dbo.SummerCourse);

仅当列的值为“唯一”时才从表中插入

2 个答案: