SQL rounding to decimal places - sql

I have a dataset which i need to do a calculation on price and round to decimal places. But the results aren't quite what is expected. The calculation is in the case statement
CREATE TABLE #Temp ( ID INT IDENTITY(1,1), Price DECIMAL(7,2) )
INSERT INTO #TEMP ( Price )
VALUES ( 119.99 )
, ( 48.99 )
SELECT
ID
, Price
, CASE WHEN Price > 10 THEN CONVERT( DECIMAL(7,2), Price * 1.08 - 0.05 ) END AS RRP
FROM #Temp
DROP TABLE #Temp
with the results
ID Price RRP
1 119.99 129.54
2 48.99 52.86
I need to get the 129.54 to 129.55 and the 52.86 to 52.85 within the same case statement if that is possible to match up with another data set

Are you rounding to the nearest 5 cents because your country has gotten rid of the penny? This is the only logic that we can seem to follow with your expected results.
SELECT ID
,Price
,CASE
WHEN Price > 10
THEN ROUND(CONVERT(DECIMAL(7, 2), Price * 1.08 - 0.05) * 20, 0) / 20
END AS RRP
FROM #Temp

Assuming you want to round to the nearest 5 cents or nearst 5 in 100ths decimal position.
INSERT INTO #TEMP ( Price )
VALUES ( 119.99 )
, ( 48.99 )
SELECT
ID
, Price
, Price * 1.08 - 0.05
, CASE WHEN Price > 10 THEN CONVERT( DECIMAL(7,2), round((Price * 1.08 - 0.05)*20,0)/20) END AS RRP
FROM #Temp
DEMO:http://rextester.com/QIM12944

Related

Calculate average rate in SQL Server

declare #table as table
(
LedgerId int,
Transaction_Type varchar(50),
Inward_qty decimal (18,3),
Inward_rate decimal (18,3)
)
insert into #table
values (1, 'Issue', 67.320, 473.66),
(2, 'Receipt', 201.290, 657.90),
(3, 'Receipt', 94.860, 473.66)
select * from #table
I want to calculate the average rate the formula is finding the receipt and subtract from issue remaining will be multiplied by the rate we will have the value than total value divided by total receipt qty and we will get an inward rate I have no clue how to do this
Formula
201.290 - 67.320 = 133.970 (receipt - issue)
133.970 * 657.900 = 88,138.863(remaining receipt qty * rate) will get value
94.860 * 473.660 = 44,931.3876(receipt * rate) will get value
88,138.863 + 44,931.3876 = 1,33,070.2506 (sum of total value)
133.970 + 94.860 = 228.83(sum of total qty )
1,33,070.2506 / 228.83 (sum of total value) / (sum of total qty )
= 581.5244967880086 thus 581.524 is average rate
output layout as per above calculation
declare #table1 as table
(
LedgerId int,
Transaction_Type varchar(50),
Inward_qty decimal (18,3),
Inward_rate decimal (18,3)
)
insert into #table1 values(1,'Issue',67.320,473.66),(2,'Receipt',133.970,657.90),(3,'Receipt',94.860,473.66)
select * , inward_Value = Inward_qty * Inward_rate into #temp from #table1
declare #Qty decimal (18,3)
declare #value decimal (18,3)
set #Qty= (select sum(Inward_qty) from #temp where Transaction_Type ='Receipt' )
set #value =(select sum(inward_Value) from #temp where Transaction_Type ='Receipt' )
declare #Rate decimal (18,3) = #Value/#Qty
select #Rate
drop table #temp

Simpler way to solve a scenario without cursor

Lets consider one table
Date Type TransId Qty UnitCost Total
01/01/2020 OPEN IN33433 100 12 1200 --IN,UnitCost is fixed
19/03/2020 PUR IN31134 200 12.5 2500 --IN,UnitCost is fixed
21/03/2020 DEL OUT24443 250 12.33 3082.5 --OUT unit cost calculated
25/03/2020 DEL OUT28668 10 12.33 123.3 --OUT unit cost calculated
26/03/2020 SAL OUT35448 23 12.33 283.59 --OUT unit cost calculated
30/03/2020 TRSFR IN83588 12 12.45 149.4 --IN, UnitCost is fixed
The table depicts an inventory transaction records. Lets say IN types are OPEN,PUR,TRSFR,ADJIN and OUT Types are DEL,SAL,ADJOUT
Here the Unit cost for all IN transaction are fixed. Which means we will get this value from somewhere and do not need to worry about it.
But for OUT transactions, the unit costs are calculated. For better understanding of the calculation lets consider an example. The first OUT transaction which is on 21/03/2020 with type DEL. The formula for calculating the unitcost for this OUT transaction is:
sum of all Totals of IN transaction happened before and after any OUT / sum of Qty of all IN transaction happened before and after any OUT
So the unitcost=(1200+2500)/(100+200)=12.33.
And then an IN transaction happened on 30/03/2020 with type TRSFR. For this, as I said earlier the unit cost is fixed. Now for any out transaction happened we will consider the unit cost of 12.45 (149.4/12).
Hope its clear. I need a solution to calculate and get the unit cost without CURSOR. Lets say I need to get the unit cost for a transaction which is supposed to happen on 20/04/2020 of type DEL (which is OUT)
You can do it using multiple subqueries like below.
DECLARE #SampleTable TABLE
(
Date DATETIME,
Type VARCHAR(100),
TransId VARCHAR(100),
Qty INT,
UnitCost MONEY,
Total MONEY
)
INSERT INTO #SampleTable VALUES
('2020-01-01', 'OPEN', 'IN33433', 100 , 12 , 1200 ), --IN,UnitCost is fixed
('2020-03-19', 'PUR', 'IN31134', 200 , 12.5 , 2500 ), --IN,UnitCost is fixed
('2020-03-21', 'DEL', 'OUT24443', 250 , 12.33 , 3082.5), --OUT unit cost calculated
('2020-03-25', 'DEL', 'OUT28668', 10 , 12.33 , 123.3 ), --OUT unit cost calculated
('2020-03-26', 'SAL', 'OUT35448', 23 , 12.33 , 283.59), --OUT unit cost calculated
('2020-03-30', 'TRSFR', 'IN83588', 12 , 12.45 , 149.4 ) --IN, UnitCost is fixed
SELECT
*,
(SELECT SUM(Total) FROM #SampleTable S2 WHERE S2.Date < S1.Date AND S2.TransId LIKE 'IN%' AND S1.TransId LIKE 'OUT%') AS SumOutTransaction,
(SELECT SUM(Qty) FROM #SampleTable S2 WHERE S2.Date < S1.Date AND S2.TransId LIKE 'IN%' AND S1.TransId LIKE 'OUT%') AS SumQtyTransaction,
CASE
WHEN S1.TransId LIKE 'OUT%' THEN
(
(SELECT SUM(Total) FROM #SampleTable S2 WHERE S2.Date < S1.Date AND S2.TransId LIKE 'IN%' AND S1.TransId LIKE 'OUT%')
/
(SELECT SUM(Qty) FROM #SampleTable S2 WHERE S2.Date < S1.Date AND S2.TransId LIKE 'IN%' AND S1.TransId LIKE 'OUT%')
)
ELSE Total/Qty
END AS CalculatedUnitCost
FROM #SampleTable S1
Apart from this, there could be other more optimized options as well.
Sample data
create table #purchases
(
Date varchar(20),
Type varchar(10),
Transid varchar(100),
Qty int,
UnitCost float,
Total float
)
insert into #purchases values('01/01/2020','OPEN', 'IN33433', 100 , 12 , 1200)
insert into #purchases values('19/03/2020','PUR' , 'IN31134', 200 , 12.5 , 2500)
insert into #purchases values('21/03/2020','DEL' , 'OUT24443', 250 , 12.33 , 3082.5)
insert into #purchases values('25/03/2020','DEL' , 'OUT28668', 10 , 12.33 , 123.3)
insert into #purchases values('26/03/2020','SAL' , 'OUT35448', 23 , 12.33 , 283.59)
insert into #purchases values('30/03/2020','TRSFR' , 'IN83588' , 12 , 12.45 , 149.4)
Query
select ROW_NUMBER() over (order by Date desc) as Rn,* into #temp
from #purchases
declare #latestOut int
select #latestOut=Rn from #temp where Type in ('DEL','SAL','ADJOUT') order by Rn desc
select SUM(Total)/Sum(Qty) as [Output] from #temp where RN<#latestOut

SQL Server How to insert when not exist?

I have two tables, one is called Invoices and another is called Records.
CREATE TABLE Invoices
(
InvoiceNum INT NOT NULL,
Amount DECIMAL,
RecordPK UNIQUEIDENTIFIER NOT NULL
)
CREATE TABLE Records(
RecordPK UNIQUEIDENTIFIER NOT NULL PRIMARY KEY,
StartNum INT NOT NULL,
NextNum INT NOT NULL,
MaxNum INT NOT NULL,
InvPrefix VARCHAR(2) NOT NULL
)
The records table will record the invoice start number, how many invoices we have created(NextNum) and how many invoices we can create(MaxNum).
For example, Assume we have several records in two tables.
Invoice Table:
InvoiceNum Amount RecordPk
1 19.00 EDFA0541-5583-4CDD-BDFF-21D6F6504522
2 50.00 EDFA0541-5583-4CDD-BDFF-21D6F6504522
3 3.00 EDFA0541-5583-4CDD-BDFF-21D6F6504522
10 1.00 D64EFF0E-65D5-467E-8C82-BFBB6A24AAC9
11 99.00 D64EFF0E-65D5-467E-8C82-BFBB6A24AAC9
12 13.00 D64EFF0E-65D5-467E-8C82-BFBB6A24AAC9
Records Table:
RecordPk StartNum NextNum MaxNum Prefix
EDFA0541-5583-4CDD-BDFF-21D6F6504522 1 4 10 AA
D64EFF0E-65D5-467E-8C82-BFBB6A24AAC9 10 13 14 AA
My question is when I search the invoice table with Prefix AA, how can I get the result like below, the InvoiceNum should reach the MaxNum, the Amount and RecordPK of not exist rows should left blank, the Remark column should fill with Blank.
InvoiceNum Amount RecordPk Remark
1 19.00 EDFA0541-5583-4CDD-BDFF-21D6F6504522
2 50.00 EDFA0541-5583-4CDD-BDFF-21D6F6504522
3 3.00 EDFA0541-5583-4CDD-BDFF-21D6F6504522
4 Blank
5 Blank
6 Blank
7 Blank
8 Blank
9 Blank
10 1.00 D64EFF0E-65D5-467E-8C82-BFBB6A24AAC9
11 99.00 D64EFF0E-65D5-467E-8C82-BFBB6A24AAC9
12 13.00 D64EFF0E-65D5-467E-8C82-BFBB6A24AAC9
13 Blank
14 Blank
You need to generate a table with numbers to cover the range of numbers that you need (for each row in Records table, from StartNum to MaxNum). You can do this for example, by selecting from some existing table with enough rows and using ROW_NUMBER window function. Then filter this sequence to include only the numbers you need. Left join the Invoices table to show the data for the corresponding invoice and use IIF function to check is there invoice with this number or not.
declare #Invoices table(InvoiceNum INT NOT NULL, Amount DECIMAL, RecordPK UNIQUEIDENTIFIER NOT NULL)
declare #Records table(RecordPK UNIQUEIDENTIFIER NOT NULL PRIMARY KEY, StartNum INT NOT NULL, NextNum INT NOT NULL, MaxNum INT NOT NULL, InvPrefix VARCHAR(2) NOT NULL)
insert into #Invoices(InvoiceNum, Amount, RecordPk) values
(1 , 19.00, 'EDFA0541-5583-4CDD-BDFF-21D6F6504522'),
(2 , 50.00, 'EDFA0541-5583-4CDD-BDFF-21D6F6504522'),
(3 , 3.00 , 'EDFA0541-5583-4CDD-BDFF-21D6F6504522'),
(10, 1.00 , 'D64EFF0E-65D5-467E-8C82-BFBB6A24AAC9'),
(11, 99.00, 'D64EFF0E-65D5-467E-8C82-BFBB6A24AAC9'),
(12, 13.00, 'D64EFF0E-65D5-467E-8C82-BFBB6A24AAC9')
insert into #Records(RecordPk, StartNum, NextNum, MaxNum, InvPrefix) values
('EDFA0541-5583-4CDD-BDFF-21D6F6504522', 1 , 4 , 10, 'AA'),
('D64EFF0E-65D5-467E-8C82-BFBB6A24AAC9', 10, 13, 14, 'AA')
;with numbers as (select ROW_NUMBER() over(order by object_id) as No from sys.objects)
select
n.No as InvoiceNum
, inv.Amount
, inv.RecordPK
, IIF(inv.InvoiceNum is null, 'Blank', null) as Remark
from numbers n
left join #Invoices inv on n.No = inv.InvoiceNum
where exists(select * from #Records r where r.StartNum <= n.No and n.No <= r.MaxNum)
#Andrey Nikolov has it covered, however I've been working on this for the last 15 minutes so I thought I'd post it anyway.
Essentially an intermediary table should be used to count up the values you don't have, then in my version of this answer I've used a union query to generate the "Blank" value. I have not included the unique identifier for brevity but the application is the same.
if OBJECT_ID('tempdb..#invoice') is not null drop table #invoice;
if OBJECT_ID('tempdb..#rowcount') is not null drop table #rowcount;
create table #invoice
(
invoicenum int,
amount decimal
);
insert into #invoice (invoicenum, amount)
values
(1, 19.00),
(2, 50.00),
(3, 3.00),
(10, 1.00),
(11, 99.00),
(12, 13.00);
create table #rowcount
(
rownumber int
);
declare #max int = 1;
select #max=count(*) from #invoice;
declare #runs int = 1;
while #runs<=#max
begin
insert into #rowcount (rownumber)
values (#runs);
select #runs=#runs+1;
end
select invoicenum, cast(amount as nvarchar(25)) as amount from #invoice
union
select rownumber, 'BLANK' from #rowcount r left join #invoice i on
r.rownumber=i.invoicenum where i.invoicenum is null
order by invoicenum;
drop table #invoice, #rowcount;
You need a LEFT JOIN
SELECT I.*,
CASE WHEN I.InvoiceNum IS NULL THEN 'Blank' END Remark
FROM (VALUES (1), (2), (3), (4), (5), (6), (7), (8), (9), (10), (11), (12), (13), (14)) RC (InvoiceNum)
LEFT JOIN Invoices I
ON RC.InvoiceNum = I.InvoiceNum;
The value 1 is the StartNum and 14 is the MAX MaxNum.
I used VALUES cause the number is know, you can use a RecursiveCTE to generate the missing InvoiceNum then LEFT JOIN the CTE with your table.
Demo
I will do it this way:
IF OBJECT_ID('tempdb..#Invoices') IS NOT NULL DROP TABLE #Invoices
CREATE TABLE #Invoices
(
InvoiceNum INT NOT NULL,
Amount DECIMAL,
RecordPK UNIQUEIDENTIFIER NOT NULL
)
IF OBJECT_ID('tempdb..#Records') IS NOT NULL DROP TABLE #Records
CREATE TABLE #Records(
RecordPK UNIQUEIDENTIFIER NOT NULL PRIMARY KEY,
StartNum INT NOT NULL,
NextNum INT NOT NULL,
MaxNum INT NOT NULL,
InvPrefix VARCHAR(2) NOT NULL
)
INSERT INTO #Invoices
SELECT 1, 19.00, 'EDFA0541-5583-4CDD-BDFF-21D6F6504522'
UNION SELECT 2 , 50.00, 'EDFA0541-5583-4CDD-BDFF-21D6F6504522'
UNION SELECT 3 , 3.00 , 'EDFA0541-5583-4CDD-BDFF-21D6F6504522'
UNION SELECT 10 , 1.00 , 'D64EFF0E-65D5-467E-8C82-BFBB6A24AAC9'
UNION SELECT 11 , 99.00, 'D64EFF0E-65D5-467E-8C82-BFBB6A24AAC9'
UNION SELECT 12 , 13.00, 'D64EFF0E-65D5-467E-8C82-BFBB6A24AAC9'
INSERT INTO #Records
SELECT 'EDFA0541-5583-4CDD-BDFF-21D6F6504522', 1, 4, 10, 'AA'
UNION SELECT 'D64EFF0E-65D5-467E-8C82-BFBB6A24AAC9', 10, 13, 14, 'AA'
DECLARE #MAX_NUM INT = (SELECT MAX(MaxNum) FROM #Records)
DECLARE #TEMP_INV TABLE (InvoiceNum INT)
INSERT INTO #TEMP_INV
SELECT Num
FROM
(
SELECT ROW_NUMBER() OVER(ORDER BY object_id) AS Num FROM sys.objects
) A
WHERE Num <= #MAX_NUM
IF OBJECT_ID('tempdb..#TEMP') IS NOT NULL DROP TABLE #TEMP
SELECT I.InvoiceNum, I.Amount, I.RecordPK
INTO #TEMP
FROM #Invoices I
INNER JOIN #Records R
ON I.RecordPK = R.RecordPK
WHERE R.InvPrefix = 'AA'
SELECT A.InvoiceNum, B.Amount, B.RecordPK, CASE WHEN B.InvoiceNum IS NULL THEN 'BLANK' END AS Remark
FROM #TEMP_INV A
LEFT JOIN #TEMP B
ON A.InvoiceNum = B.InvoiceNum

Price calculation based on the unit entered

Table Schema:
CREATE TABLE [dbo].[TblPriceDetails](
[PriceID] [int] IDENTITY(1,1) NOT NULL,
[VID] [int] NOT NULL,
TypeID int not null,
[RangeStart] [decimal](18, 3) NOT NULL,
[RangeEnd] [decimal](18, 3) NOT NULL,
[Price] [decimal](18, 2) NOT NULL,
[ExtraLoad] [decimal](18, 3) NULL,
[ExtraPrice] [decimal](18, 2) NULL
)
GO
Sample Data
Insert into dbo.TblPriceDetails values (1,1, 0,0.250,10,0,0)
Insert into dbo.TblPriceDetails values (1,1, 0.251,0.500,15,0.500,15)
Insert into dbo.TblPriceDetails values (1,1, 3,5,40,1,25)
GO
Insert into dbo.TblPriceDetails values (1,2, 0,0.250,15,0,0)
Insert into dbo.TblPriceDetails values (1,2, 0.251,0.500,20,0.500,20)
Insert into dbo.TblPriceDetails values (1,2, 3,5,50,1,30)
GO
Expected Output:
For VID = 1 and TypeID = 1 and a given value 0.300
As the input unit falls between RangeStart 0.251 and RangeEnd 0.500
the resultant price will be 15
For VID = 1 and TypeID = 1 and a given value 0.600
As per the data until 0.500 the price is 15 and for every extraLoad
of upto 0.500 its another 15. So the final price will be 30
For VID = 1 and TypeID = 1 and given value 1.500
As per the data until 0.500 the price is 15. For every extra 0.500
its another 15, so for the remaining 1 unit it would be 15 * 2. The
final price will be 45
For VID = 1 and TypeID = 1 and given value 5.5
As per the data until 5.000 the price is 40. For every extra 1 unit its another 25, so the final price will be 65
Need help in writing a query for this. Unlike my other questions I don't have a query yet to show what I have come up with till now. As of now I am not able to frame a logic and come up with a generic query for this.
It looks like you are looking to calculate postage price. The trick is to join on the RangeStart of the next weight tier. LEAD will help you do that:
;WITH
AdjustedPriceDetails AS
(
SELECT VID, TypeID, RangeStart, RangeEnd, Price, ExtraLoad, ExtraPrice
, ISNULL(LEAD(RangeStart, 1) OVER (PARTITION BY VID, TypeID ORDER BY RangeStart), 1000000) AS NextRangeStart
FROM TblPriceDetails
)
SELECT T.*
, A.Price + IIF(T.Value <= A.RangeEnd, 0, CEILING((T.Value - A.RangeEnd) / A.ExtraLoad) * A.ExtraPrice)
AS FinalPrice
FROM #TestData T
INNER JOIN AdjustedPriceDetails A ON A.RangeStart <= T.Value AND T.Value < A.NextRangeStart
Explanation:
LEAD(RangeStart, 1) OVER (PARTITION BY VID, TypeID ORDER BY RangeStart) gets the RangeStart of the next row that has the same VID and TypeID
You will eventually reach the highest weight tier. So ISNULL(..., 1000000) make this tier appear to end at 1M. The 1M is just a stand-in for infinity.
Edit: if you want to make this work with SQL Server 2008, change the CTE:
;WITH
tmp AS
(
SELECT VID, TypeID, RangeStart, RangeEnd, Price, ExtraLoad, ExtraPrice
, ROW_NUMBER() OVER (PARTITION BY VID, TypeID ORDER BY RangeStart) AS RowNumber
FROM TblPriceDetails
),
AdjustedPriceDetails AS
(
SELECT T1.VID, T1.TypeID, T1.RangeStart, T1.RangeEnd, T1.Price, T1.ExtraLoad, T1.ExtraPrice
, ISNULL(T2.RangeStart, 1000000) AS NextRangeStart
FROM tmp T1
LEFT JOIN tmp T2 ON T1.VID = T2.VID AND T1.TypeId = T2.TypeID AND T1.RowNumber + 1 = T2.RowNumber
)
If you wonder what #TestData is (you may not need it)
CREATE TABLE #TestData
(
VID int
, TypeID int
, Value float
)
INSERT INTO #TestData
( VID, TypeID, Value)
VALUES ( 1, 1, 0.3 )
, ( 1, 1, 0.6 )
, ( 1, 1, 1.5 )
, ( 1, 1, 5.5 )

SQL Server window function for running percentage

I know there are several examples of recursion with CTE and so on, but how can this be accomplished just by using window functions in SQL Server 2012:
CREATE TABLE #temp
(
ID INT PRIMARY KEY IDENTITY(1,1) NOT NULL,
Percentage INT NOT NULL
)
DECLARE #Calculated MONEY = 1000
INSERT INTO #temp ( Percentage ) VALUES ( 100 )
INSERT INTO #temp ( Percentage ) VALUES ( 90)
INSERT INTO #temp ( Percentage ) VALUES ( 60)
INSERT INTO #temp ( Percentage ) VALUES ( 50)
INSERT INTO #temp ( Percentage ) VALUES ( 100)
And the result would be a running percentage like so (we are starting with $1000)
id percentage calculated
-- -------- ---------
1 100 1000
2 50 500
3 90 450
4 80 360
5 100 360
So the value for the next row is the percentage multiplied by the calculated value above that row. Can LAG be used on a computed alias?
Thanks,
You need a running product of the percentages instead of always comparing 2 consecutive rows, which is why LEAD and LAG won't work here.
You can use a windowed sum to keep a running product of the percentages against your variable to get your desired calculation:
SELECT
ID,
Expected,
EXP(SUM(LOG(CONVERT(FLOAT, Percentage) / 100)) OVER (ORDER BY ID)) * #Calculated AS Actual
FROM #Temp
Adding this to your sample code (with a column I added for your expected output):
CREATE TABLE #temp
(
ID INT PRIMARY KEY IDENTITY(1,1) NOT NULL,
Percentage INT NOT NULL,
Expected MONEY NOT NULL
)
DECLARE #Calculated MONEY = 1000
INSERT INTO #temp ( Percentage, Expected ) VALUES ( 100 , 1000)
INSERT INTO #temp ( Percentage, Expected ) VALUES ( 50, 500)
INSERT INTO #temp ( Percentage, Expected ) VALUES ( 90, 450)
INSERT INTO #temp ( Percentage, Expected ) VALUES ( 80, 360)
INSERT INTO #temp ( Percentage, Expected ) VALUES ( 100, 360)
SELECT
ID,
Expected,
EXP(SUM(LOG(CONVERT(FLOAT, Percentage) / 100)) OVER (ORDER BY ID)) * #Calculated AS Actual
FROM #Temp
This will yield your expected output:
ID Expected Actual
----------- --------------------- ----------------------
1 1000.00 1000
2 500.00 500
3 450.00 450
4 360.00 360
5 360.00 360
you can use recursive cte to get the desired result
with cte
as
(
select id, percentage, 1000 as calculated
from #temp
where id =1
union all
select t.id, t.percentage, t.percentage*cte.calculated/100 as calculated
from #temp t
join cte
on t.id = cte.id+1
)
select * from cte
I'm afraid, widow functions won't help here (at least they won't make it simple). The easiest way to achieve your goal is update statement with double assignment:
alter table #temp add VAL decimal
declare #val decimal = 1000
update t set
#val = VAL = #val * Percentage / 100
from (select top 100 percent * from #temp order by id) as t
select * from #temp