Question

我需要编写一个显示所有帐号的查询，然后我需要显示未来10天内特定开始日期的下一个10个期末余额。

我有一个帐户维度，一个带日期的维度和一个事实余额表，用于存储每个帐户的期初余额和期末余额。

输出需要如下所示：

我试图写一个这样的查询：

    select information.bankname,information.branchname,information.holdername,information.accountnumber, information.CURRENCY, CB1.amount1, CB2.amount2, CB3.amount3, CB4.amount4, CB5.amount5, CB6.amount6, CB7.amount7,  CB8.amount8, CB9.amount9, CB10.amount10
from 
--eerste gegevens selecteren
(select a.BANK_NAME bankname, a.BRANCH_NAME branchname, a.HOLDER_NAME holdername, a.ACCOUNT_NUMBER accountnumber, a.CURRENCY currency
--relaties worden gelegd
from DIM_ACCOUNT a, FACT_AS_BALANCE b, DIM_DATE d 
where
b.balance_date_id = d.ID and
b.account_id = a.ID and
) information,

(select FACT_AS_BALANCE.CB_AMOUNT amount1
--relaties worden gelegd
from DIM_ACCOUNT a, FACT_AS_BALANCE b, DIM_DATE d 
where
b.balance_date_id = d.ID and
b.account_id = a.ID and
(d.CAL_DATE = TO_DATE ('20130101', 'YYYYMMDD'))) CB1,

(select FACT_AS_BALANCE.CB_AMOUNT amount2
--relaties worden gelegd
from DIM_ACCOUNT a, FACT_AS_BALANCE b, DIM_DATE d 
where
b.balance_date_id = d.ID and
b.account_id = a.ID and
(d.CAL_DATE = TO_DATE ('20130101', 'YYYYMMDD') + 1)) CB2,

(select FACT_AS_BALANCE.CB_AMOUNT amount3
--relaties worden gelegd
from DIM_ACCOUNT a, FACT_AS_BALANCE b, DIM_DATE d 
where
b.balance_date_id = d.ID and
b.account_id = a.ID and
(d.CAL_DATE = TO_DATE ('20130101', 'YYYYMMDD') + 2)) CB3,

(select FACT_AS_BALANCE.CB_AMOUNT amount4
--relaties worden gelegd
from DIM_ACCOUNT a, FACT_AS_BALANCE b, DIM_DATE d 
where
b.balance_date_id = d.ID and
b.account_id = a.ID and
(d.CAL_DATE = TO_DATE ('20130101', 'YYYYMMDD') + 3)) CB4,

(select FACT_AS_BALANCE.CB_AMOUNT amount5
--relaties worden gelegd
from DIM_ACCOUNT a, FACT_AS_BALANCE b, DIM_DATE d 
where
b.balance_date_id = d.ID and
b.account_id = a.ID and
(d.CAL_DATE = TO_DATE ('20130101', 'YYYYMMDD') + 4)) CB5,

(select FACT_AS_BALANCE.CB_AMOUNT amount6
--relaties worden gelegd
from DIM_ACCOUNT a, FACT_AS_BALANCE b, DIM_DATE d 
where
b.balance_date_id = d.ID and
b.account_id = a.ID and
(d.CAL_DATE = TO_DATE ('20130101', 'YYYYMMDD') + 5)) CB6,

(select FACT_AS_BALANCE.CB_AMOUNT amount7
--relaties worden gelegd
from DIM_ACCOUNT a, FACT_AS_BALANCE b, DIM_DATE d 
where
b.balance_date_id = d.ID and
b.account_id = a.ID and
(d.CAL_DATE = TO_DATE ('20130101', 'YYYYMMDD') + 6)) CB7,

(select FACT_AS_BALANCE.CB_AMOUNT amount8
--relaties worden gelegd
from DIM_ACCOUNT a, FACT_AS_BALANCE b, DIM_DATE d 
where
b.balance_date_id = d.ID and
b.account_id = a.ID and
(d.CAL_DATE = TO_DATE ('20130101', 'YYYYMMDD') + 7)) CB8,

(select FACT_AS_BALANCE.CB_AMOUNT amount9
--relaties worden gelegd
from DIM_ACCOUNT a, FACT_AS_BALANCE b, DIM_DATE d 
where
b.balance_date_id = d.ID and
b.account_id = a.ID and
(d.CAL_DATE = TO_DATE ('20130101', 'YYYYMMDD') + 8)) CB9,

(select FACT_AS_BALANCE.CB_AMOUNT amount10
--relaties worden gelegd
from DIM_ACCOUNT a, FACT_AS_BALANCE b, DIM_DATE d 
where
b.balance_date_id = d.ID and
b.account_id = a.ID and
(d.CAL_DATE = TO_DATE ('20130101', 'YYYYMMDD') + 9)) CB10;

我不知道这是否是正确的方法。但我真的没有别的办法。

我该怎么做？

Answer 1

如果您使用的是Oracle 11+，则可以使用PIVOT子句，这些内容如下：

WITH Date_Range as (SELECT id, cal_Date
                    FROM dim_Date
                    WHERE cal_Date >= TO_DATE('20130101', 'yyyymmdd')
                          AND cal_Date < TO_DATE('20130101', 'yyyymmdd') + 10)
SELECT *
FROM (SELECT Account.bank_name, Account.branch_name, 
             Account.holder_name, Account.account_number,
             Account.currency, Balance.cb_amount, Date_Range.cal_Date
      FROM dim_Account Account
      JOIN fact_as_Balance Balance
        ON Balance.account_id = Account.id
      JOIN Date_Range
           ON Date_Range.id = Balance.balance_date_id) Information
PIVOT(MAX(cb_amount)) FOR cal_Date IN (SELECT cal_Date FROM Date_Range)

未经测试，因为没有样本数据可供使用。这应该动态生成所有日期的列（请注意，我反对SELECT *的使用，但我不确定如果不指定透视列仍然会包含它们 - 它不像我们必须猜测列名...）

Answer 2

我想你想要这样的东西：

SELECT 
    a.bank_name bankname, 
    a.branch_name branchname, 
    a.holder_name holdername, 
    a.account_number accountnumber, 
    a.currency currency,
    SUM(CASE WHEN d.cal_date = to_date ('20130101', 'yyyymmdd')
             THEN fact_as_balance.cb_amount 
             ELSE 0 end) amount1,
    SUM(CASE WHEN d.cal_date = to_date ('20130101', 'yyyymmdd') + 1
             THEN fact_as_balance.cb_amount 
             ELSE 0 end) amount2,
    SUM(CASE WHEN d.cal_date = to_date ('20130101', 'yyyymmdd') + 1
             THEN fact_as_balance.cb_amount 
             ELSE 0 end) amount3,
    (continue for columns 4-10)
FROM 
    dim_account a
    JOIN fact_as_balance b ON a.id = b.account_id
    JOIN dim_date d ON b.balance_date_id = d.id 
GROUP BY    
    a.bank_name bankname, 
    a.branch_name branchname, 
    a.holder_name holdername, 
    a.account_number accountnumber, 
    a.currency currency

每行10个计算字段

2 个答案: