使用Access SQL进行分组排名 [英] Use Access SQL to do a grouped ranking

问题描述

如何按部门划分的#em个客户对销售人员进行排名(包括联系)?

How do I rank salespeople by # customers grouped by department (with ties included)?

例如，给定此表，我想在右侧创建等级"列.我应该如何在Access中执行此操作?

销售人员部门#客户排名
Bill DeptA 20 1
特德DeptA 30 2
Jane DeptA 40 3
法案部B 50 1
玛丽部B 60 2

For example, given this table, I want to create the Rank column on the right. How should I do this in Access?
SalesPerson Dept #Customers Rank
Bill        DeptA     20    1
Ted         DeptA     30    2
Jane        DeptA     40    3
Bill        DeptB     50    1
Mary        DeptB     60    2

我已经知道如何使用此SQL代码进行简单排名.但是我不知道该如何重做以接受分组.
I already know how to do a simple ranking with this SQL code. But I don't know how to rework this to accept grouping.
Select Count(*) from [Tbl] Where [#Customers] <  [Tblx]![#Customers] )+1

此外，使用SQL Server的Rank()函数对此有很多答案，但是我需要在Access中做到这一点.有建议吗?
Also, there's plenty of answers for this using SQL Server's Rank() function, but I need to do this in Access.  Suggestions, please?
推荐答案
 
SELECT *, (select count(*) from tbl as tbl2 where
tbl.customers > tbl2.customers and tbl.dept = tbl2.dept) + 1 as rank from tbl

只需将dept字段添加到子查询中... 
Just add the dept field to the subquery...

                        
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