alter session set nls_date_format = 'dd/mm/yyyy';
ACCEPT input_year PROMPT 'Enter the year to check the quantity of each menu item ordered by customers (YYYY): '
col menu_id format a10
col description format a50
col total_sales_amount format 9999.99
TTITLE CENTER 'Sales of Menu Item ordered by customers in ' &input_year ' compared with previous year' RIGHT 'Page:' SQL.PNO SKIP 2
WITH YearlyOrderData AS (
SELECT
m.MENU_ID,
m.DESCRIPTION AS MENU_DESCRIPTION,
TO_CHAR(o.ORDER_DATE, 'YYYY') AS ORDER_YEAR,
SUM(oi.QUANTITY * oi.UNIT_PRICE) AS TOTAL_SALES_AMOUNT
FROM
orders o
JOIN order_item oi ON o.ORDER_NO = oi.ORDER_NO
JOIN menus m ON oi.MENU_ID = m.MENU_ID
GROUP BY
m.MENU_ID, m.DESCRIPTION, TO_CHAR(o.ORDER_DATE, 'YYYY')
),
DistinctMenuItems AS (
SELECT DISTINCT MENU_ID, DESCRIPTION
FROM menus
),
SELECT
dmi.MENU_ID,
dmi.DESCRIPTION AS MENU_DESCRIPTION,
TO_CHAR(MAX(CASE WHEN yod.ORDER_YEAR = '&input_year' THEN yod.TOTAL_SALES_AMOUNT ELSE 0 END), '$999,999.99') AS "&input_year",
TO_CHAR(MAX(CASE WHEN yod.ORDER_YEAR = TO_CHAR(TO_NUMBER('&input_year') - 1) THEN yod.TOTAL_SALES_AMOUNT ELSE 0 END), '$999,999.99') AS "Prev Year"
FROM
DistinctMenuItems dmi
LEFT JOIN YearlyOrderData yod ON dmi.MENU_ID = yod.MENU_ID
AND (yod.ORDER_YEAR = '&input_year' OR yod.ORDER_YEAR = TO_CHAR(TO_NUMBER('&input_year') - 1))
GROUP BY
dmi.MENU_ID, dmi.DESCRIPTION
ORDER BY
dmi.MENU_ID;
以上是我的代码。输出将显示“&input_year”年和“上一年”中每个菜单项的total_sales_amount，如下所示：
Sales of Menu Item ordered by customers in 2023 compared with previous year Page: 1
MENU_ID MENU_DESCRIPTION 2023 Prev Year
---------- -------------------------------------------------------------------------------- ------------ ------------
BBSL Blanched Bean Sprout Large $4.50 $12.00
BBSS Blanched Bean Sprout Small $4.00 $7.00
BR1 Sourdough Potato Bread $10.00 $9.00
BR2 Sourdough Loaf $59.50 $.00
BR3 Sourdough Cheese Bread $5.50 $9.00
C1C CHAM O COLD $16.00 $47.00
C1H CHAM O HOT $35.00 $21.00
C2C CHAM COLD $.00 $26.00
C2H CHAM HOT $.00 $.00
C3C CHAM C COLD $36.50 $40.00
C3H CHAM C HOT $16.00 $.00
CF2 Chee Cheong Fun Set $.00 $.00
CF3 Chee Cheong Fun Set + CharSiu $37.50 $152.00
DHC Drumstick Hainan Chicken Rice $.00 $.00
G01 Chicken and Pork Horfun $11.90 $59.50
G02 Old Style Ipoh Gai Si Horfun $111.80 $114.80
GP1 Special Horfun $150.00 $72.00
HC0 Hainan Chicken Rice $.00 $13.00
HHC one half Hainan Chicken $.00 $.00
K1C KOPI O COLD $.00 $20.00
K1H KOPI O HOT $28.00 $31.00
K2C KOPI COLD $6.50 $36.00
K2H KOPI HOT $16.00 $4.30
K3C KOPI C COLD $.00 $.00
K3H KOPI C HOT $20.00 $3.00
K4C KOPI SARAWAK COLD $27.50 $22.50
K4H KOPI SARAWAK HOT $.00 $46.00
KB1 Black Kampua (With Kampua Daoyu) $25.00 $.00
KB2 Black Kampua with Gyoza $.00 $90.00
KB3 Black Kampua withHainan Chicken $70.40 $83.50
它们是两列。我想显示这两列中每一列的总计。有人可以帮我解决这个问题吗？我应该使用 COMPUTE 语法吗？
我尝试使用 COMPUTE 但不知何故它不起作用。也许我写错了。
您可以使用如下所示的 MODEL 子句。首先是一些示例数据和要使用的 CTE：
WITH
orders AS
( Select 20220001 "ORDER_NO", To_Date('01.09.2022', 'dd.mm.yyyy') "ORDER_DATE" From Dual Union All
Select 20220002 "ORDER_NO", To_Date('01.09.2022', 'dd.mm.yyyy') "ORDER_DATE" From Dual Union All
Select 20220003 "ORDER_NO", To_Date('01.09.2022', 'dd.mm.yyyy') "ORDER_DATE" From Dual Union All
Select 20230001 "ORDER_NO", To_Date('01.09.2023', 'dd.mm.yyyy') "ORDER_DATE" From Dual Union All
Select 20220002 "ORDER_NO", To_Date('01.09.2023', 'dd.mm.yyyy') "ORDER_DATE" From Dual
),
order_item AS
( Select 20220001 "ORDER_NO", 101 "UNIT_ID", 1101 "MENU_ID", 5 "QUANTITY", 12 "UNIT_PRICE" From Dual Union All
Select 20220002 "ORDER_NO", 102 "UNIT_ID", 1102 "MENU_ID", 4 "QUANTITY", 12 "UNIT_PRICE" From Dual Union All
Select 20220003 "ORDER_NO", 103 "UNIT_ID", 1103 "MENU_ID", 3 "QUANTITY", 12 "UNIT_PRICE" From Dual Union All
Select 20230001 "ORDER_NO", 101 "UNIT_ID", 1101 "MENU_ID", 2 "QUANTITY", 10 "UNIT_PRICE" From Dual Union All
Select 20230002 "ORDER_NO", 102 "UNIT_ID", 1102 "MENU_ID", 1 "QUANTITY", 10 "UNIT_PRICE" From Dual
),
menus AS
( Select 1101 "MENU_ID", 'Description of 101' "DESCRIPTION" From Dual Union All
Select 1102 "MENU_ID", 'Description of 102' "DESCRIPTION" From Dual Union All
Select 1103 "MENU_ID", 'Description of 103' "DESCRIPTION" From Dual
),
YearlyOrderData AS
(
SELECT m.MENU_ID,
m.DESCRIPTION AS MENU_DESCRIPTION,
TO_CHAR(o.ORDER_DATE, 'YYYY') AS ORDER_YEAR,
SUM(oi.QUANTITY * oi.UNIT_PRICE) AS TOTAL_SALES_AMOUNT
FROM orders o
JOIN order_item oi ON o.ORDER_NO = oi.ORDER_NO
JOIN menus m ON oi.MENU_ID = m.MENU_ID
GROUP BY m.MENU_ID, m.DESCRIPTION, TO_CHAR(o.ORDER_DATE, 'YYYY')
),
DistinctMenuItems AS
(
SELECT DISTINCT MENU_ID, DESCRIPTION
FROM menus
)
现在对主 SQL 进行建模（将金额类型更改为用于求和的数字）
Select *
From ( SELECT dmi.MENU_ID,
dmi.DESCRIPTION AS MENU_DESCRIPTION,
MAX(CASE WHEN yod.ORDER_YEAR = '&input_year' THEN yod.TOTAL_SALES_AMOUNT ELSE 0 END) AS "ACT_YEAR",
MAX(CASE WHEN yod.ORDER_YEAR = TO_CHAR(TO_NUMBER('&input_year') - 1) THEN yod.TOTAL_SALES_AMOUNT ELSE 0 END) AS "PREV_YEAR"
FROM DistinctMenuItems dmi
LEFT JOIN YearlyOrderData yod ON dmi.MENU_ID = yod.MENU_ID AND
(yod.ORDER_YEAR = '&input_year' OR yod.ORDER_YEAR = TO_CHAR(TO_NUMBER('&input_year') - 1))
GROUP BY dmi.MENU_ID, dmi.DESCRIPTION
ORDER BY dmi.MENU_ID
)
MODEL Dimension By (MENU_ID)
Measures (MENU_DESCRIPTION, ACT_YEAR, PREV_YEAR)
RULES ( MENU_DESCRIPTION[Null] = 'T o t a l :',
ACT_YEAR[Null] = Sum(ACT_YEAR)[MENU_ID Is Not Null],
PREV_YEAR[Null] = Sum(PREV_YEAR)[MENU_ID Is Not Null]
)
-- R e s u l t :
-- MENU_ID MENU_DESCRIPTION ACT_YEAR PREV_YEAR
-- ---------- ------------------ ---------- ----------
-- 1101 Description of 101 20 60
-- 1102 Description of 102 48 48
-- 1103 Description of 103 0 36
-- T o t a l : 68 144