Let's suppose I have balance 2000, and want to select balance as
balance=balance-Cr+Dr
So my balance column will give values as below.
balance DR Cr
40000 0 60000
100000 60000 0
0 0 100000
How is this possible in SQL query?
Please check similar question like me
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Here is a recursive CTE that calculates the balance using the balance from the previous row. You need something that defines the order of the rows. I use the ID column in the sample table.
-- Test table
declare #T table
(
ID int identity primary key,
DR int,
Cr int
)
-- Sample data
insert into #T (DR, Cr)
select 0, 60000 union all
select 60000, 0 union all
select 0, 100000
-- In value
declare #StartBalance int
set #StartBalance = 100000
-- Recursive cte calculating balance as a running sum
;with cte as
(
select
T.ID,
#StartBalance - T.Cr + T.DR as Balance,
T.DR,
T.Cr
from #T as T
where T.ID = 1
union all
select
T.ID,
C.Balance - T.Cr + T.DR as Balance,
T.DR,
T.Cr
from cte as C
inner join #T as T
on C.ID+1 = T.ID
)
select Balance, DR, Cr
from cte
option (maxrecursion 0)
Result:
Balance DR Cr
----------- ----------- -----------
40000 0 60000
100000 60000 0
0 0 100000
This should work:
SELECT (T.BALANCE-T.CR+T.DR) as "Balance", T.DR, T.CR
FROM <table-name> T
If you use Oracle, there is a function called LAG to reach the previous row data: http://www.adp-gmbh.ch/ora/sql/analytical/lag.html
If you read this link I think you will see that this is exactly what you need. But only if you use Oracle..
Related
Given the following data:
sequence | amount
1 100000
1 20000
2 10000
2 10000
I'd like to write a sql query that gives me the sum of the current sequence, plus the sum of the previous sequence. Like so:
sequence | current | previous
1 120000 0
2 20000 120000
I know the solution likely involves windowing functions but I'm not too sure how to implement it without subqueries.
SQL Fiddle
select
seq,
amount,
lag(amount::int, 1, 0) over(order by seq) as previous
from (
select seq, sum(amount) as amount
from sa
group by seq
) s
order by seq
If your sequence is "sequencial" without holes you can simply do:
SELECT t1.sequence,
SUM(t1.amount),
(SELECT SUM(t2.amount) from mytable t2 WHERE t2.sequence = t1.sequence - 1)
FROM mytable t1
GROUP BY t1.sequence
ORDER BY t1.sequence
Otherwise, instead of t2.sequence = t1.sequence - 1 you could do:
SELECT t1.sequence,
SUM(t1.amount),
(SELECT SUM(t2.amount)
from mytable t2
WHERE t2.sequence = (SELECT MAX(t3.sequence)
FROM mytable t3
WHERE t3.sequence < t1.sequence))
FROM mytable t1
GROUP BY t1.sequence
ORDER BY t1.sequence;
You can see both approaches in this fiddle
I have a table with the following data
Bldg Suit SQFT Date
1 1 1,000 9/24/2012
1 1 1,500 12/31/2011
1 2 800 8/31/2012
1 2 500 10/1/2005
I want to write a query that will sum the max date for each suit record, so the desired result would be 1,800, and must be in one cell/row. This will ultimately be part of subquery, I am just not getting what I expect with the queries I have writtren so far.
Thanks in advance.
You can use the following (See SQL Fiddle with Demo):
select sum(t1.sqft) Total
from yourtable t1
inner join
(
select max(dt) mxdt, suit, bldg
from yourtable
group by suit, bldg
) t2
on t1.dt = t2.mxdt
and t1.bldg = t2.bldg
and t1.suit = t2.suit
; With Data As
(
Select Bldg, Suit, SQFT, Row_Number() Over (Partition By Bldg, Suit Order By Date DESC) As RowID
From YourTableNameHere
)
Select Bldg, Sum(SQFT) As TotalSQFT
From Data
Where RowId = 1
Group By Bldg
It's kind of hard to explain, but from this example it should be clear.
Table TABLE:
Name State Time
--------------------
A 1 1/4/2012
B 0 1/3/2012
C 0 1/2/2012
D 1 1/1/2012
Would like to
select * from TABLE where state=1 order by Time desc
plus an additional column 'Skipped' containing the number of rows after one where state=1 in state 0, in other words the output should look like this:
Name State Time Skipped
A 1 1/4/2012 2 -- 2 rows after A where State != 1
D 1 1/1/2012 0 -- 0 rows after D where State != 1
0 should also be reported in case of 2 consecutive rows are in state = 1, i.e. there is nothing between these rows in a state other than 1.
It seems like CTE are must here, but can't figure out how to count rows where state != 1.
Any help will be appreciated.
(MS Sql Server 2008)
I've used a CTE to establish RowNo, so that you're not dependent on consecutive dates:
WITH CTE_Rows as
(
select name,state,time,
rowno = ROW_NUMBER() over (order by [time])
from MyTable
)
select name,state,time,
gap = isnull(r.rowno - x.rowno - 1,0)
from
CTE_Rows r
outer apply (
select top 1 rowno
from CTE_Rows sub
where sub.rowno < r.rowno and sub.state = 1
order by sub.rowno desc) x
where r.state = 1
If you just want to do it by date, then its simpler - just need an outer apply:
select name,state,r.time,
gap = convert(int,isnull(r.time - x.time - 1,0))
from
MyTable r
outer apply (
select top 1 time
from MyTable sub
where sub.time < r.time and sub.state = 1
order by sub.time desc) x
where r.state = 1
FYI the test data is used was created as follows:
create table MyTable
(Name char(1), [state] tinyint, [Time] datetime)
insert MyTable
values
('E',1,'2012-01-05'),
('A',1,'2012-01-04'),
('B',0,'2012-01-03'),
('C',0,'2012-01-02'),
('D',1,'2012-01-01')
Okay, here you go (it gets a little messy):
SELECT U.CurrentTime,
(SELECT COUNT(*)
FROM StateTable AS T3
WHERE T3.State=0
AND T3.Time BETWEEN U.LastTime AND U.CurrentTime) AS Skipped
FROM (SELECT T1.Time AS CurrentTime,
(SELECT TOP 1 T2.Time
FROM StateTable AS T2
WHERE T2.Time < T1.Time AND T2.State=1
ORDER BY T2.Time DESC) AS LastTime
FROM StateTable AS T1 WHERE T1.State = 1) AS U
Assume we have a table and we want to do a sum of the Expend column so that the summation only adds up values of the same Week_Name.
SN Week_Name Exp Sum
-- --------- --- ---
1 Week 1 10 0
2 Week 1 20 0
3 Week 1 30 60
4 Week 2 40 0
5 Week 2 50 90
6 Week 3 10 0
I will assume we will need to `Order By' Week_Name, then compare the previous Week_Name(previous row) with the current row Week_name(Current row).
If both are the same, put zero in the SUM column.
If not the same, add all expenditure, where Week_Name = Week_Name(Previous row) and place in the Sum column. The final output should look like the table above.
Any help on how to achieve this in T-SQL is highly appreciated.
Okay, I was eventually able to resolve this issue, praise Jesus! If you want the exact table I gave above, you can use GilM's response below, it is perfect. If you want your table to have running Cumulatives, i.e. Rows 3 shoud have 60, Row 5, should have 150, Row 6 160 etc. Then, you can use my code below:
USE CAPdb
IF OBJECT_ID ('dbo.[tablebp]') IS NOT NULL
DROP TABLE [tablebp]
GO
CREATE TABLE [tablebp] (
tablebpcCol1 int PRIMARY KEY
,tabledatekey datetime
,tableweekname varchar(50)
,expenditure1 numeric
,expenditure_Cummulative numeric
)
INSERT INTO [tablebp](tablebpcCol1,tabledatekey,tableweekname,expenditure1,expenditure_Cummulative)
SELECT b.s_tablekey,d.PK_Date,d.Week_Name,
SUM(b.s_expenditure1) AS s_expenditure1,
SUM(b.s_expenditure1) + COALESCE((SELECT SUM(s_expenditure1)
FROM source_table bs JOIN dbo.Time dd ON bs.[DATE Key] = dd.[PK_Date]
WHERE dd.PK_Date < d.PK_Date),0)
FROM source_table b
INNER JOIN dbo.Time d ON b.[Date key] = d.PK_Date
GROUP BY d.[PK_Date],d.Week_Name,b.s_tablekey,b.s_expenditure1
ORDER BY d.[PK_Date]
;WITH CTE AS (
SELECT tableweekname
,Max(expenditure_Cummulative) AS Week_expenditure_Cummulative
,MAX(tablebpcCol1) AS MaxSN
FROM [tablebp]
GROUP BY tableweekname
)
SELECT [tablebp].*
,CASE WHEN [tablebp].tablebpcCol1 = CTE.MaxSN THEN Week_expenditure_Cummulative
ELSE 0 END AS [RunWeeklySum]
FROM [tablebp]
JOIN CTE on CTE.tableweekname = [tablebp].tableweekname
I'm not sure why your SN=6 line is 0 rather than 10. Do you really not want the sum for the last Week? If having the last week total is okay, then you might want something like:
;WITH CTE AS (
SELECT Week_Name,SUM([Expend.]) as SumExpend
,MAX(SN) AS MaxSN
FROM T
GROUP BY Week_Name
)
SELECT T.*,CASE WHEN T.SN = CTE.MaxSN THEN SumExpend
ELSE 0 END AS [Sum]
FROM T
JOIN CTE on CTE.Week_Name = T.Week_Name
Based on the requst in the comment wanting a running total in SUM you could try this:
;WITH CTE AS (
SELECT Week_Name, MAX(SN) AS MaxSN
FROM T
GROUP BY Week_Name
)
SELECT T.SN, T.Week_Name,T.Exp,
CASE WHEN T.SN = CTE.MaxSN THEN
(SELECT SUM(EXP) FROM T T2
WHERE T2.SN <= T.SN) ELSE 0 END AS [SUM]
FROM T
JOIN CTE ON CTE.Week_Name = T.Week_Name
ORDER BY SN
I have tables with following structure
create table Doc(
id int identity(1, 1) primary key,
DocumentStartValue varchar(100)
)
create Metadata (
DocumentValue varchar(100),
StartDesignation char(1),
PageNumber int
)
GO
Doc contains
id DocumentStartValue
1000 ID-1
1100 ID-5
2000 ID-8
3000 ID-9
Metadata contains
Documentvalue StartDesignation PageNumber
ID-1 D 0
ID-2 NULL 1
ID-3 NULL 2
ID-4 NULL 3
ID-5 D 0
ID-6 NULL 1
ID-7 NULL 2
ID-8 D 0
ID-9 D 0
What I need to is to map Metadata.DocumentValues to Doc.id
So the result I need is something like
id DocumentValue PageNumber
1000 ID-1 0
1000 ID-2 1
1000 ID-3 2
1000 ID-4 3
1100 ID-5 0
1100 ID-6 1
1100 ID-7 2
2000 ID-8 0
3000 ID-9 0
Can it be achieved without the use of cursor?
Something like, sorry can't test
;WITH RowList AS
( --assign RowNums to each row...
SELECT
ROW_NUMBER() OVER (ORDER BY id) AS RowNum,
id, DocumentStartValue
FROM
doc
), RowPairs AS
( --this allows us to pair a row with the previous rows to create ranges
SELECT
R.DocumentStartValue AS Start, R.id,
R1.DocumentStartValue AS End
FROM
RowList R JOIN RowList R1 ON R.RowNum + 1 = R1.RowNum
)
--use ranges to join back and get the data
SELECT
RP.id, M.DocumentValue, M.PageNumber
FROM
RowPairs RP
JOIN
Metadata M ON RP.Start <= M.DocumentValue AND M.DocumentValue < RP.End
Edit: This assumes that you can rely on the ID-x values matching and being ascending. If so, StartDesignation is superfluous/redundant and may conflict with the Doc table DocumentStartValue
with rm as
(
select DocumentValue
,PageNumber
,case when StartDesignation = 'D' then 1 else 0 end as IsStart
,row_number() over (order by DocumentValue) as RowNumber
from Metadata
)
,gm as
(
select
DocumentValue as DocumentGroup
,DocumentValue
,PageNumber
,RowNumber
from rm
where RowNumber = 1
union all
select
case when rm.IsStart = 1 then rm.DocumentValue else gm.DocumentGroup end
,rm.DocumentValue
,rm.PageNumber
,rm.RowNumber
from gm
inner join rm on rm.RowNumber = (gm.RowNumber + 1)
)
select d.id, gm.DocumentValue, gm.PageNumber
from Doc d
inner join gm on d.DocumentStartValue = gm.DocumentGroup
Try to use query above (maybe you will need to add option (maxrecursion ...) also) and add index on DocumentValue for Metadata table. Also, it it's possible - it will be better to save appropriate group on Metadat rows inserting.
UPD: I've tested it and fixed errors in my query, not it works and give result as in initial question.
UPD2: And recommended indexes:
create clustered index IX_Metadata on Metadata (DocumentValue)
create nonclustered index IX_Doc_StartValue on Doc (DocumentStartValue)