Question

I am trying to make a query whereby I can generate a list for the top 10 items per item group per.
It is for a supermarket chain whereby all items are divided into item groups. E.g Rice, Salt etc. There will be different brands of Rice and Different brands for Salt.

I need to get the data from a SAP Business One Table (MS SQL Server 2008)

Sample results from the Item Group table, OITB

SELECT * FROM OITB (showing first two columns for item groups)

ItmsGrpCod  ItmsGrpNam
101         RICE
102         SALT
103         SUGAR
104         FROZEN VEGETABLE

This returns 224 results.

SELECT * FROM OITB (showing first two columns for items)

ItemCode    ItemName          ItmsGrpCod    
2001        A1 GRAIN RICE     101
2001        ASHA BRAND RICE   101
2003        PISHORI RICE      101
2004        B7 GRADE RICE     101
2019        JIM SALT          102
2020        KAYKAY SALT       102

I also have this query below that gets the top 10 items but I have to specify the Item group code (field ItmsGrpCod)

SELECT TOP 100 T0.ItemCode, T0.ItemName, T1.DocDate, T6.Price AS COST,P3.Price AS POS,
((P3.Price-T6.Price)/T6.Price)*100 AS [Markup %], T2.OnHand, SUM(T1.Quantity) 
AS Quantity, SUM(T1.LineTotal) AS SALES,T6.Price *SUM(T1.Quantity) AS [Sales 
Cost],SUM(T1.LineTotal) - T6.Price *SUM(T1.Quantity) AS [GP Amount],
(SUM(T1.LineTotal) - T6.Price *SUM(T1.Quantity))/(T6.Price *SUM(T1.Quantity))
*100 as [GP %],T3.WhsName FROM OITM T0
INNER JOIN INV1 T1 ON T0.ItemCode = T1.ItemCode 
INNER JOIN OITW T2 ON T0.ItemCode = T2.ItemCode 
INNER JOIN OWHS T3 ON T1.WhsCode = T3.WhsCode 
INNER JOIN OINV T4 ON T1.DocEntry = T4.DocEntry 
INNER JOIN OITB T5 ON T0.ItmsGrpCod = T5.ItmsGrpCod 
INNER JOIN ITM1 T6 ON T0.ItemCode = T6.ItemCode  
INNER JOIN (SELECT P1.ItemCode, P2.Price FROM OITM P1 
INNER JOIN ITM1 P2 ON P1.ItemCode=P2.ItemCode WHERE 
P2.PriceList='1') P3 ON P3.ItemCode=T0.ItemCode WHERE T6.PriceList ='2' 
AND T2.WhsCode = '01' AND T1.WhsCode = '01' AND T4.DocDate 
= CONVERT(VARCHAR, GETDATE() -1, 101)
AND T0.ItmsGrpCod = '103'  --(Item Group Code)
GROUP BY T0.ItemCode, T0.ItmsGrpCod, T0.ItemName, T1.DocDate, T6.Price, P3.Price, ((P3.Price-T6.Price)
/NULLIF(T6.Price, 0))* 100, T2.OnHand, T3.WhsName ORDER BY Quantity DESC

What I need is a query that will first get all the Item Group Codes from OITB and store them temporarily in an array, and then run the 2nd query for each Item Group Code. Assuming that there are at least 10 items in each item group, the query should return 2240 results. However, some item group have less than 10 items. I have really not used arrays in SQl so how would I build a query to get what I want? Any help appreciated.

Answer 1

I think this statement will help:

Create table OITB (itmsGrpCod int ,ItmsGrpNam varchar(30) )

insert into OITB select 101,'RICE'
insert into OITB select 102,'SALT'
insert into OITB select 103,'SUGAR'
insert into OITB select 104,'FROZEN VEGETABLE'



Create table Item (ItemCode int ,ItemName varchar(20),ItmsGrpCod int )

insert into Item select 1011,'A RICE',101
insert into Item select 1012,'B RICE',101
insert into Item select 1013,'C RICE',101
insert into Item select 1014,'D RICE',101
insert into Item select 1015,'E RICE',101
insert into Item select 1016,'F RICE',101
insert into Item select 1017,'G RICE',101
insert into Item select 1018,'H RICE',101
insert into Item select 1019,'I RICE',101
insert into Item select 10111,'J RICE',101
insert into Item select 10112,'K RICE',101
insert into Item select 10113,'L RICE',101
insert into Item select 10114,'M RICE',101
insert into Item select 1020,'A SALT',102
insert into Item select 1021,'B SALT',102
insert into Item select 1042,'C SALT',102





WITH recordsList
AS
(
    SELECT  Item.*,
            ROW_NUMBER() OVER (PARTITION BY ItmsGrpNam
                                ORDER BY Item.itmsGrpCod ) rn
    FROM    OITB
  inner join 
  Item on OITB.ItmsGrpCod=Item.ItmsGrpCod
)
SELECT  *
FROM    recordsList
WHERE   rn <= 10