我有三张桌子如下 - :
Create table #temp (id int, DepartmentName varchar(50))
insert into #temp (id,DepartmentName) values(1,'Account')
insert into #temp (id,DepartmentName) values(2,'IT')
select * from #temp
Create Table #temp1(customerid int, CustomerName varchar(50),DepartmentId int)
Insert into #temp1(customerid,CustomerName,DepartmentId)values(1,'Anil',1)
Insert into #temp1(customerid,CustomerName,DepartmentId)values(2,'Ankit',2)
Insert into #temp1(customerid,CustomerName,DepartmentId)values(3,'Mandeep',1)
Insert into #temp1(customerid,CustomerName,DepartmentId)values(4,'Rajesh',2)
Insert into #temp1(customerid,CustomerName,DepartmentId)values(5,'Rohit',1)
Insert into #temp1(customerid,CustomerName,DepartmentId)values(6,'Sharma',0)
Create Table #temp2(customerid int, salary int)
insert into #temp2(customerid,salary)values(1,2000)
insert into #temp2(customerid,salary)values(3,2399)
insert into #temp2(customerid,salary)values(4,4000)
insert into #temp2(customerid,salary)values(2,4500)
insert into #temp2(customerid,salary)values(5,7000)
select max(t2.salary) ,t.CustomerName,t1.DepartmentName
from #temp1 t
left join #temp t1 …