贷款分组数50

Question

我想写一个查询，将捕获0和50的计数，形成贷款组1，计数为51和100，计数贷款等组2。我试图以50个增量计算每个银行的贷款，并将它们分组到50个。我需要列出所有的贷款编号。

SELECT DISTINCT 
    DLR_NAME, 
    ACCOUNT, 
    COUNT(*) AS GROUPCOUNT, 
    CASE WHEN COUNT BETWEEN 1 AND 50 Then 'Group 1' 
     WHEN COUNT BETWEEN 51 AND 100 THEN 'Group 2' 

就像这样。目前我是新手。

Answer 1

我不知道我理解你正确，但试试这个：

declare @GroupSize decimal = 50.0 
select BankID, 
    LoanID, 
    floor((_row - 1)/@GroupSize) as [GroupNum] 
from (
    select BankID, 
     LoanID, 
     row_number() over (partition by BankID order by BankID, LoanID) as _row 
    from Loan 
) a 

SQL Fiddle

Answer 2

不知道你真正需要的，但也许这样的事情？

select 
    DLR_NAME, 
    ACCOUNT, 
    CASE WHEN GROUPCOUNT BETWEEN 1 AND 50 Then 'Group 1' 
     WHEN GROUPCOUNT BETWEEN 51 AND 100 THEN 'Group 2' 
    END 
from 
(
    select, 
     DLR_NAME, 
     ACCOUNT, 
     COUNT(*) AS GROUPCOUNT 
    from 
     account 
    group by 
     DLR_NAME, 
     ACCOUNT 
) X 

这将计算每个DLR_NAME + ACCOUNT在表帐户中有多少行，然后根据该行分配组名。

Answer 3

Select DLR_NAME, ACCOUNT , 'Group ' + Convert(varchar(10), (Convert(int, GROUPCOUNT/50) + 1)) as Group From 
(
SELECT DISTINCT 
    DLR_NAME, 
    ACCOUNT, 
    COUNT(*) AS GROUPCOUNT 
From Account 
Group by DLR_NAME, ACCOUNT 
)T 

说明：

Convert(varchar(10), (Convert(int, GROUPCOUNT/50) + 1)) 

GROUPCOUNT = 57 then 
1). Convert(varchar(10), (Convert(int, 57/50) + 1)) 
2). Convert(varchar(10), (Convert(int, 1.14) + 1)) 
3). Convert(varchar(10), (1 + 1)) 
4). 2 as Varchar 

没有必要的情况下，当管理情况。