从不同查询的结果更新列

Question

我有两张桌子（车辆和费用），我在费用表中引入了一个部门栏目 所以我想更新费用表中的部门列与车辆表中的部门

我的车辆表是这样的：

vehicle Department
S526    424
D097    402
D113    403
D111    430
C005    400
C003    403
C002    403

和成本tvle是这样的：

car     Dept
D097    
C005    
D113    
D113    
D111    
C005    
D113    
C005    
C003    
C002    
C005    
S526    
C002    
C002

如何更新费用表以包含相关部门

我试过这个但是没有用：

update costs as h,
(
  select v.vid as 'car',
  v.department as 'department',
  h.VID as 'newcar'
  from vehicles AS v
  join costs as h on v.vid = h.VID and v.costcentre = h.CostCenter
) as t2
set h.department = t2.department

Answer 1

update costs h,vehicles v
set h.Dept = v.Department
where v.vehicle = h.car;