MS query to obtain a single row of data with multile rows
Dear experts,
I would like to find out how can I modify my query to change the way my query result displays.
Here is my query:
SELECT product_id, warehouse_loc
FROM inventory
ORDER BY product_id
My display result will look like this:
product_id warehouse_loc
NX-1233-01 B1-2
NX-1223-01 B2-2
Nx_1223-01 B3-1
Is there a way that I can modify my result to look like this:
product_id warehouse_loc
NX-1233-01 B1-2
B2-2
B3-1
Thanks
I would like to find out how can I modify my query to change the way my query result displays.
Here is my query:
SELECT product_id, warehouse_loc
FROM inventory
ORDER BY product_id
My display result will look like this:
product_id warehouse_loc
NX-1233-01 B1-2
NX-1223-01 B2-2
Nx_1223-01 B3-1
Is there a way that I can modify my result to look like this:
product_id warehouse_loc
NX-1233-01 B1-2
B2-2
B3-1
Thanks
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Not without a fair amount of pain. It is the opinion of most developers that cosmetics like this are better served in whatever reporting application you are using as opposed to in T-SQL, as doing it that way in a set would hose up grouping/sorting.
For example, in SQL Server Reporting Services (SSRS) in the textbox for the product_id column the HideDuplicates property can be set to True, which would blank out all 'duplicates' beyond the first row.
For example, in SQL Server Reporting Services (SSRS) in the textbox for the product_id column the HideDuplicates property can be set to True, which would blank out all 'duplicates' beyond the first row.
SELECT CASE WHEN rn = 1 THEN product_id END product_id, warehouse_loc
FROM (SELECT product_id,
warehouse_loc,
ROW_NUMBER() OVER(PARTITION BY product_id ORDER BY warehouse_loc) rn
FROM inventory)
ORDER BY product_id, warehouse_loc;
This simply numbers each row 1,2,3,... for each product id,
if row number = 1 (i.e. the first row for that product) then display the id, otherwise return NULL (blank) for the product id
FROM (SELECT product_id,
warehouse_loc,
ROW_NUMBER() OVER(PARTITION BY product_id ORDER BY warehouse_loc) rn
FROM inventory)
ORDER BY product_id, warehouse_loc;
This simply numbers each row 1,2,3,... for each product id,
if row number = 1 (i.e. the first row for that product) then display the id, otherwise return NULL (blank) for the product id
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