鉴于以下情况:
Create Table Person
(
ID int ,
Lastname varchar(32),
Firstname varchar(32)
);
Create Table Families
(
ID int,
PersonId_fk int,
IsHeadOfHousehold bit
);
Insert into Person Values(1, 'Smith', 'John');
Insert into Person Values(4, 'Johnson', 'Sue');
Insert into Person Values(2, 'Smith', 'Jane');
Insert into Person Values(3, 'Towmater', 'Billy');
Insert into Families Values(1, 1, 1);
Insert into Families Values(1, 2, 0);
Insert into Families Values(1, 3, 0);
Insert into Families Values(1, 4, 0);
我无法按以下顺序显示结果。我想做的是让户主首先出现,然后是任何同姓的人,最后是其他人按姓氏排序
Smith John 1
Smith Jane 0
Johnson Sue 0
Towmater Billy 0
我已经尝试过了
SELECT LastName, FirstName, IsHeadOfHousehold
FROM families f
join person p
on f.PersonID_fk = p.ID
where f.Id = 1
Order by IsHeadOfHousehold DESC, LastName, FirstName
这让我很接近,但没有得到我想要的。
最佳答案
由于您使用的是 SQL Server,如果您使用的是 2005+,您应该能够使用 row_number()
对数据进行排序:
SELECT LastName, FirstName, IsHeadOfHousehold
FROM families f
join person p
on f.PersonID_fk = p.ID
where f.Id = 1
order by IsHeadOfHousehold desc,
row_number() over(partition by lastname order by IsHeadOfHousehold desc) desc,
lastname, firstname;
关于sql - 查询的正确排序依据,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/16591047/