I have a query output showing a list of orders. Some orders might occupy more then one record in the query output if those orders consist of sub-orders.Each sub-order occupies a separate line in the output. There is the OrderID column which has the same value for all sub-orders in the output:
OrderID Sub-Order Price
1 1 100
1 2 50
2 1 30
3 1 50
I need to add a column "Discount" to the output and fill it by following rules:
If certain order has one sub-order - the discount is 10% of the Price
If certain order has more than one sub-order, the discount is 20% on all sub-orders'
My query is a UNION of two SELECTs.
I use mssql with ms sql studio
Use CASE and COUNT window function
SELECT OrderID, Sub-Order, Price,
CASE WHEN (count(*) OVER (PARTITION BY OrderID)) > 1
THEN Price * 0.8
ELSE Price * 0.9
END
FROM ( table or <query> )
Related
I have a SQL statement that imports my product inventory from a Access.MDB file. The select statement is below. (well a portion of it)
SELECT
Brand, DESCRIPTION AS Model,
SECONDDESCRIPTION AS Description,
PRODUCT AS [Product Code], TYPE AS Batch, INACTIVE,
CORE AS [Core Range],
IIF([CUSTORD] IS NULL, ROUND(ON_HAND), (IIF(TYPE = 'DISP',ROUND(ON_HAND),ROUND(ON_HAND)-CUSTORD))) AS SOH
You may notice that the select statement will minus any items that are on a customer order from the SOH values. for clarity below is the line that does just that.
IIF([CUSTORD] IS NULL, ROUND(ON_HAND), (IIF(TYPE = 'DISP',ROUND(ON_HAND),ROUND(ON_HAND)-CUSTORD))) AS SOH
The problem i have is, that 1 product code, can have multiple batches, and if an item only has a qty of 1 in each batch, and then the customer order column also contains a 1, this results in 1 - 1 = 0.
However the customer orders column is really indicating that only 1 of the product codes in on a customer order, not that specific batch.
Is there a way to check if that product code has already been "Selected" and has a Customer Order Qty against it and if it does then ignore the customer order qty against this next batch in the table?
To help explain it a little here is a rough idea of the table that would be imported.
Product
Batch_Number
ON_HAND
CUSTORD
Apples
123456
5
1
Apples
234567
1
1
Apples
587554
1
1
Bananas
1548777
1
0
so in the table above with my existing select statement, my results would be
Apples 4 in batch 123456
Bananas 1 in batch 1548777
As the next two lines of apples would actually end up with a value of 0 in batches 234567 and 587554
my program is set to then only return to the user values of items they can sell with a SOH qty > 0
so i need the final datatable in my program to look like this:
Product
Batch_Number
ON_HAND
CUSTORD
Apples
123456
5
1
Apples
234567
1
0
Apples
587554
1
0
Bananas
1548777
1
0
In my table Batch Number is the unique identifier and does not occur twice in the table.
Im working in VB.NET so if it could not be done in the SQL select statement i could be open to the idea of adjusting the values in the dataset datatable, however that would probably be made harder by the fact that the SQL Select statement i'm using never actually imports the CUSTORD column of data into my datatable. As i was trying to handle the SOH values directly at the select statement level.
Hope i have not confused anyone, and explained it as simple as possible.
I have no idea what your initial code has to do with the question. But let me assume that you have a table in the format shown in the question and you want to set on_hand to 0 for all but the first row for each product. You can use:
select product, batch_number, custord,
iif( t.batch_number = (select top 1 t2.batch_number
from t as t2
where t2.product = t.product
order by t2.on_hand desc, t2.batch_number
),
t.on_hand, 0
) as adjusted_on_hand
from t
order by product, on_hand desc, batch_number
my apologies if this is a duplicate but I could not find an answer to my particular question. I have a table that lists products on a sales order, and their various quantities. Some products are components for other products and are denoted so with a flag. I would like to know if there is a way to have a running total for the parent/normal items that would reset on each parent/normal item.
Here is an example of the table data and my desired output:
OrderNo Item Qty Regular Line
349443 AFU20451-KIT1 1 Y 1
349443 AFU20451 0 N 2
349443 HAWKE-14252 1 N 3
349443 RGPM-25H4 1 N 4
349443 AV-003-265 1 Y 5
349443 AV-A00090-KIT 1 Y 6
349443 AV-A00091 1 N 7
349443 AV-A00090 1 N 8
349443 AV-00043 1 N 9
349443 AV457/310GR/FP 2 Y 10
desired output:
OrderNo Item Qty
349433 AFU20451-KIT1 3
349433 AV-003-265 1
349433 AV-A00090-KIT 4
349433 AV457/310GR/FP 2
As you can see, I would like to reset the sum every time it says Y, only include the parent item (I could get around this as I can keep the order of the items the same, could maybe use row number). I have been trying to use Over and Partition by in order to do this, but to no avail. Let me know if this is even possible or if you need any further information.
with cte as
(
select OrderNo,
-- only return the main item
case when Regular = 'Y' then Item end AS Item,
Qty,
-- assign a unique number to each `YNNN..` component group
-- needed for GROUP BY in next step
sum(case when Regular = 'Y' then 1 else 0 end)
over (partition by OrderNo
order by Line
rows unbounded preceding) as grp
from myTable
)
select OrderNo,
-- find the matching value for the main component
max(Item),
sum(Qty)
from cte
group by OrderNo, grp
Current representation is against 1st Codd's rule.
Rule 1: The information rule: All information in a relational data
base is represented explicitly at the logical level and in exactly one
way – by values in tables.
But I believe you can still create FUNCTION/PROCEDURE and iterate row one by one with IF statement for Y/N. E.g. you create new table, IF Y - add new row to table, IF N - add +1 to QTY to latest row.
I would create two separate tables: manufacturer & part, to get the values so you don't have to hand-jam each inventory, or care about where they fall in the invoice list.
[1
[]2
Then, all you would need to do is compare the values to the part table to get this data. It's more work upfront, but will pay off to have this all saved and stored. A future sample query would look something like:
SELECT OrderNo.OrderTable, Item.OrderTable, Sum(Qty.OrderTable) AS Quantity
FROM OrderTable INNER JOIN Part ON OrderTable.Item = Table.PartName
GROUP BY OrderNo.OrderTable, Item.OrderTable, Regular.OrderTable, Part.ParentID;
try this:
select orderno, item, sum(qty) over(partition by regular order by regular)
from your_table
group by orderno, item, regular
I would like to query my database to know which fraction/percentage of the elements of a table are larger/smaller than a given value.
For instance, let's say I have a table shopping_list with the following schema:
id integer
name text
price double precision
with contents:
id name price
1 banana 1
2 book 20
3 chicken 5
4 chocolate 3
I am now going to buy a new item with price 4, and I would like to know where this new item will be ranked in the shopping list. In this case the element will be greater than 50% of the elements.
I know I can run two queries and count the number of elements, e.g.:
-- returns = 4
SELECT COUNT(*)
FROM shopping_list;
-- returns = 2
SELECT COUNT(*)
FROM shopping_list
WHERE price > 4;
But I would like to do it with a single query to avoid post-processing the results.
if you just want them in single query use UNION
SELECT COUNT(*), 'total'
FROM shopping_list
UNION
SELECT COUNT(*),'greater'
FROM shopping_list
WHERE price > 4;
The simplest way is to use avg():
SELECT AVG( (price > 4)::float)
FROM shopping_list;
One way to get both results is as follows:
select count(*) as total,
(select count(*) from shopping_list where price > 4) as greater
from shopping_list
It will get both results in a single row, with the names you specified. It does, however, involve a query within a query.
I found the aggregate function PERCENT_RANK which does exactly what I wanted:
SELECT PERCENT_RANK(4) WITHIN GROUP (ORDER BY price)
FROM shopping_list;
-- returns 0.5
I have a query based on basic criteria that will return X number of records on any given day.
I'm trying to check the result of the basic query then apply a percentage split to it based on the total of X and split it in 2 buckets. Each bucket will be a percentage of the total query result returned in X.
For example:
Query A returns 3500 records.
If the number of records returned from Query A is <= 3000, then split the 3500 records into a 40% / 60% split (1,400 / 2,100).
If the number of records returned from Query A is >=3001 and <=50,000 then split the records into a 10% / 90% split.Etc. Etc.
I want the actual records returned, and not just the math acting on the records that returns one row with a number in it (in the column).
I'm not sure how you want to display different parts of the resulting set of rows, so I've just added additional column(part) in the resulting set of rows that contains values 1 indicating that row belongs to the first part and 2 - second part.
select z.*
, case
when cnt_all <= 3000 and cnt <= 40
then 1
when (cnt_all between 3001 and 50000) and (cnt <= 10)
then 1
else 2
end part
from (select t.*
, 100*(count(col1) over(order by col1) / count(col1) over() )cnt
, count(col1) over() cnt_all
from split_rowset t
order by col1
) z
Demo #1 number of rows 3000.
Demo #2 number of rows 3500.
For better usability you can create a view using the query above and then query that view filtering by part column.
Demo #3 using of a view.
I have a query similar to the following:
SELECT CASE WHEN (GROUPING(Name) = 1) THEN 'All' ELSE Name END AS Name,
CASE WHEN (GROUPING(Type) = 1) THEN 'All' ELSE Type END AS Type,
sum(quantity) AS [Quantity],
CAST(sum(quantity) * (SELECT QuantityMultiplier FROM QuantityMultipliers WHERE a = t.b) AS DECIMAL(18,2)) AS Multiplied Quantity
FROM #Table t
GROUP BY Name, Type WITH ROLLUP
I'm trying to return a list of Names, Types, a summed Quantity and a summed quantity multiplied by an arbitrary number. All fine so far. I also need to return a sub-total row per Name and per Type, such as the following
Name Type Quantity Multiplied Quantity
------- --------- ----------- -------------------
a 1 2 4
a 2 3 3
a ALL 5 7
b 1 6 12
b 2 1 1
b ALL 7 13
ALL ALL 24 40
The first 3 columns are fine. I'm getting null values in the rollup rows for the multiplied quantity though. The only reason I can think this is happening is because SQL doesn't recognize the last column as an aggregate now that I've multiplied it by something.
Can I somehow work around this without things getting too convoluted?
I will be falling back onto temporary tables if this can't be done.
In your sub-query to acquire the multiplier, you have WHERE a=b. Are either a or b from the tables in your main query?
If these values are static (nothing to do with the main query), it looks like it should be fine...
If the a or b values are the name or type field, they can be NULL for the rollup records. If so, you can change to something similiar to...
CAST(sum(quantity * (<multiplie_query>)) AS DECIMAL(18,2)).
If a or b are other field from your main query, you'd be getting multiple records back, not just a single multiplier. You could change to something like...
CAST(sum(quantity) * (SELECT MAX(multiplier) FROM ...)) AS DECIMAL(18,2))