I have the following issue. I have products with 3 different states. Parent, Child and products which are orphans. I am setting Parents as 1, Children as 2 and Orphans as 0. I am struggling to get the Orphan to set to 0. I realise that counting the amount of Parent PLU's is where I am going wrong but I do not know how to resolve this issue. Any help would be appreciated. (As you maybe able to tell, I am a noob and constructive criticism would be appreciated)
Kind Regards,
Jason.
Picture of results from query
declare #OrderID int = 1635
declare #Store char(3) = '001'
declare #SortedBy smallint = 2
DECLARE #tbl TABLE (DetailID int, OrderID int, PLU nvarchar(35), ParentPLU nvarchar(35))
INSERT INTO #tbl (DetailID, OrderID, PLU, ParentPLU)
SELECT DetailID, OrderDetails.OrderID, OrderDetails.PLU, OrderDetails.ParentPLU
FROM OrderDetails
INNER JOIN PLU
ON PLU.PLU = OrderDetails.PLU
WHERE OrderDetails.OrderID = #OrderID
AND OrderDetails.OrderStore = #Store
SELECT DetailID, OrderID, PLU, ParentPLU,
CASE WHEN ( SELECT COUNT(DISTINCT ParentPLU)
FROM #tbl
WHERE ParentPLU IN (SELECT PLU FROM #tbl)
) > 0 AND ParentPLU = '' THEN 1
WHEN ( SELECT COUNT(DISTINCT ParentPLU)
FROM #tbl
WHERE ParentPLU IN (SELECT PLU FROM #tbl)
) > 0 THEN 2
ELSE
0
END AS ParentChild,
ROW_NUMBER() OVER (ORDER BY
CASE WHEN #SortedBy = 1 THEN OrderID END ASC,
CASE WHEN #SortedBy = 2 THEN DetailID END ASC
) AS ID
FROM #tbl
You can use coalesce to get your desired result. First subquery checks for parent state, second for children. If both are null, then it is orphan
select
DetailID, OrderID, PLU, ParentPLU
, coalesce((
select
distinct 1
from
#tbl b
where
a.PLU = b.ParentPlu
)
, (
select
distinct 2
from
#tbl b
where
b.PLU = a.ParentPlu
), 0)
from
#tbl a
I am getting an error on this create function code in Postgresql. The error says it is happening around Line 2 at DELETE, but it happens at WITH if I remove that line so I think it is a problem with the format of my Creat Function
create or replace function retention_data(shopId integer) returns void as $$
delete from retention where shop_id = shopId;
WITH ret_grid_step1 as (
select * from (
SELECT
order_id as order_name,
cust_name as cust_name,
email as email,
date(order_date) as created_at,
count(*) as num_items_in_order,
sum(total_price) as sales ,
rank() over (partition BY order_id ORDER BY cust_name ASC) as rnk_shipping_name,
rank() over (partition BY order_id ORDER BY email ASC) as rnk_email
FROM orders
WHERE shop_id = shopId
and order_date is not null and order_date > now()::date - 365 and order_date < now()::date + 1
group by 1,2,3,4
) x
where rnk_shipping_name = 1 and rnk_email = 1
)
insert into retention(shop_id, cust_name, email, last_purchase_dt, total_sales, num_orders, days_since_last_order)
select
shopId as shop_id,
coalesce(b.cust_name,'null') as cust_name,
a.email,
a.last_purchase_dt,
total_sales,
num_orders,
current_date - last_purchase_dt as days_since_last_order
from (
select
email,
max(created_at) as last_purchase_dt,
count(*) as num_orders,
sum(sales) as total_sales
from ret_grid_step1
group by 1
) as a
left join (
select
email,
cust_name,
rank() over (partition BY email ORDER BY created_at DESC) as rnk
from ret_grid_step1
--where cust_name is not null
group by 1,2,created_at
) as b
on a.email = b.email
where b.rnk = 1
and a.email <> '';
$$ language plpgsql;
I want to insert a dynamic number of rows into a table, based on information in that table.
I can do it using the code below, but I'm wondering if there's a way to avoid the loop.
The commented out section was my best attempt at what I was trying to do, but it gave me an error of:
"The reference to column "iCount" is not allowed in an argument to a TOP, OFFSET, or FETCH clause. Only references to columns at an outer scope or standalone expressions and subqueries are allowed here."
DECLARE #TableX TABLE (
TDate DATE
, TType INT
, Fruit NVARCHAR(20)
, Vegetable NVARCHAR(20)
, Meat NVARCHAR(20)
, Bread NVARCHAR(20)
)
INSERT INTO #TableX VALUES
('2016-11-10',1,'Apple','Artichoke',NULL,NULL)
, ('2016-11-10',1,'Banana','Beet',NULL,NULL)
, ('2016-11-10',1,'Canteloupe','Cauliflower',NULL,NULL)
, ('2016-11-10',1,'Durian','Daikon',NULL,NULL)
, ('2016-11-10',2,NULL,NULL,'Rabbit','Rye')
, ('2016-11-10',2,NULL,NULL,'Sausage','Sourdough')
, ('2016-11-11',1,'Elderberry','Eggplant',NULL,NULL)
, ('2016-11-11',2,NULL,NULL,'Turkey','Tortilla')
, ('2016-11-11',2,NULL,NULL,'Venison','Vienna')
SELECT * FROM #TableX
DECLARE #BlankRow TABLE (
ID INT IDENTITY
, TDate DATE
, TType INT
, iCount INT
)
DECLARE #Counter1 INT = 0
, #RowCount INT
; WITH BR1
AS (
SELECT TDate, TType, COUNT(*) AS iCount
FROM #TableX
WHERE TType = 1
GROUP BY TDate, TType
)
, BR2
AS (
SELECT TDate, TType, COUNT(*) AS iCount
FROM #TableX
WHERE TType = 2
GROUP BY TDate, TType
)
INSERT INTO #BlankRow
SELECT ISNULL(BR1.TDate, BR2.TDate) AS TDate,
CASE WHEN ISNULL(BR1.iCount,0) < ISNULL(BR2.iCount,0) THEN 1 ELSE 2 END AS TType,
ABS(ISNULL(BR1.iCount,0) - ISNULL(BR2.iCount,0)) AS iCount
FROM BR1
FULL JOIN BR2
ON BR1.TDate = BR2.TDate
WHILE #Counter1 < (SELECT MAX(ID) FROM #BlankRow)
BEGIN
SET #Counter1 += 1
SET #RowCount = (SELECT iCount FROM #BlankRow WHERE ID = #Counter1)
INSERT INTO #TableX
SELECT TOP (#RowCount) tx.TDate, br.TType, NULL, NULL, NULL, NULL
FROM #TableX tx
LEFT JOIN #BlankRow br
ON tx.TDate = br.TDate
WHERE br.ID = #Counter1
END
/*INSERT INTO #TableX
SELECT TOP (tx.iCount) tx.TDate, br.TType, NULL, NULL, NULL, NULL
FROM #TableX tx
JOIN #BlankRow br
ON tx.TDate = br.TDate*/
SELECT *
FROM #TableX
ORDER BY TDate, TType,
ISNULL(Fruit,REPLICATE(CHAR(255),20)),
ISNULL(Vegetable,REPLICATE(CHAR(255),20)),
ISNULL(Meat,REPLICATE(CHAR(255),20)),
ISNULL(Bread,REPLICATE(CHAR(255),20))
The data is silly, I know, but my end goal is to have two different Tablix's in ReportBuilder that end up with the same number of rows so the headers of my groups show up at the same place on the page.
Something like this:
declare #TableX table(TDate date
,TType int
,Fruit nvarchar(20)
,Vegetable nvarchar(20)
,Meat nvarchar(20)
,Bread nvarchar(20)
);
insert into #TableX values
('2016-11-10',1,'Apple','Artichoke',NULL,NULL)
,('2016-11-10',1,'Banana','Beet',NULL,NULL)
,('2016-11-10',1,'Canteloupe','Cauliflower',NULL,NULL)
,('2016-11-10',1,'Durian','Daikon',NULL,NULL)
,('2016-11-10',2,NULL,NULL,'Rabbit','Rye')
,('2016-11-10',2,NULL,NULL,'Sausage','Sourdough')
,('2016-11-11',1,'Elderberry','Eggplant',NULL,NULL)
,('2016-11-11',2,NULL,NULL,'Turkey','Tortilla')
,('2016-11-11',2,NULL,NULL,'Venison','Vienna');
with DataRN as
(
select *
,row_number() over (partition by TDate, TType order by TDate) rn
from #TableX
)
,RowsRN as
(
select tt.TDate
,tt.TType
,td.rn
from (select distinct TDate, TType
from #TableX
) tt
full join (select distinct t1.TDate
,row_number() over (partition by t1.TDate, t1.TType order by t1.TDate) rn
from #TableX t1
) td
on(tt.TDate = td.TDate)
)
select r.TDate
,r.TType
,d.Fruit
,d.Vegetable
,d.Meat
,d.Bread
from DataRN d
full join RowsRN r
on(d.TDate = r.TDate
and d.TType = r.TType
and d.rn = r.rn
)
order by r.TDate
,r.TType
,isnull(d.Fruit,REPLICATE(CHAR(255),20))
,isnull(d.Vegetable,REPLICATE(CHAR(255),20))
,isnull(d.Meat,REPLICATE(CHAR(255),20))
,isnull(d.Bread,REPLICATE(CHAR(255),20))
In response to your comment, here is how you would use another cte to generate the full list of dates that you would need, if you havn't got a Dates reference table already (These are tremendously useful):
declare #MinDate date = (select min(TDate) from #TableX);
declare #MaxDate date = (select max(TDate) from #TableX);
with Dates as
(
select #MinDate as DateValue
union all
select dateadd(d,1,DateValue)
from Dates
where DateValue < #MaxDate
)
select DateValue
from Dates
option (maxrecursion 0);
I need to write a T-SQL group by query for a table with multiple dates and seq columns:
DROP TABLE #temp
CREATE TABLE #temp(
id char(1),
dt DateTime,
seq int)
Insert into #temp values('A','2015-03-31 10:00:00',1)
Insert into #temp values('A','2015-08-31 10:00:00',2)
Insert into #temp values('A','2015-03-31 10:00:00',5)
Insert into #temp values('B','2015-09-01 10:00:00',1)
Insert into #temp values('B','2015-09-01 10:00:00',2)
I want the results to contains only the items A,B with their latest date and the corresponding seq number, like:
id MaxDate CorrespondentSeq
A 2015-08-31 10:00:00.000 2
B 2015-09-01 10:00:00.000 2
I am trying with (the obviously wrong!):
select id, max(dt) as MaxDate, max(seq) as CorrespondentSeq
from #temp
group by id
which returns:
id MaxDate CorrespondentSeq
A 2015-08-31 10:00:00.000 5 <-- 5 is wrong
B 2015-09-01 10:00:00.000 2
How can I achieve that?
EDIT
The dt datetime column has duplicated values (exactly same date!)
I am using SQL Server 2005
You can use a ranking subselect to get only the highest ranked entries for an id:
select id, dt, seq
from (
select id, dt, seq, rank() over (partition by id order by dt desc, seq desc) as r
from #temp
) ranked
where r=1;
SELECT ID, DT, SEQ
FROM (
SELECT ID, DT, SEQ, Row_Number()
OVER (PARTITION BY id ORDER BY dt DESC, seq DESC) AS row_number
FROM temp
) cte
WHERE row_number = 1;
Demo : http://www.sqlfiddle.com/#!3/3e3d5/5
With trial and errors maybe I have found a solution, but I'm not completely sure this is correct:
select A.id, B.dt, max(B.seq)
from (select id, max(dt) as maxDt
from #temp
group by id) as A
inner join #temp as B on A.id = B.id AND A.maxDt = B.dt
group by A.id, B.dt
Select id, dt, seq
From #temp t
where dt = (Select Max(dt) from #temp
Where id = t.Id)
If there are duplicate rows, then you also need to specify what the query processor should use to determine which of the duplicates to return. Say you want the lowest value of seq,
Then you could write:
Select id, dt, seq
From #temp t
where dt = (Select Max(dt) from #temp
Where id = t.Id)
and seq = (Select Min(Seq) from #temp
where id = t.Id
and dt = t.dt)
I am trying to get distinct rows from a temporary table and output them to an aspx page. I am trying to use the value of one column and get the last entry made into that column.
I have been trying to use inner join and max(). However i have been unsuccessful.
Here is the code i have been trying to do it with.
Declare #TempTable table (
viewIcon nvarchar(10),
tenderType nvarchar(20),
diaryIcon int,
customerName nvarchar(100),
projectName nvarchar(100),
diaryEntry nvarchar(max),
diaryDate nvarchar(20),
pid nvarchar(20)
)
insert into #TempTable(
viewIcon,
tenderType,
diaryIcon,
customerName,
projectName,
diaryEntry ,
diaryDate ,
pid
)
select p.viewicon,
p.[Tender Type],
1 diaryicon,
c.[Customer Name],
co.[Last Project],
d.Action,
co.[Diary Date],
p.PID
From Projects2 p Inner Join
(select distinct Pno, max(convert(date,[date of next call],103)) maxdate from ProjectDiary group by Pno
) td on p.PID = td.Pno
Inner Join contacts3 co on co.[Customer Number] = p.[Customer Number]
Inner Join Customers3 c on p.[Customer Number] = c.[Customer Number]
Inner Join ProjectDiary d on td.Pno = d.Pno
Where CONVERT(Date, co.[Diary Date], 103) BETWEEN GETDATE()-120 AND GETDATE()-60
DECLARE #contactsTable TABLE
(pid nvarchar(200),
diaryDate date)
insert into #contactsTable (t.pid, t.diarydate)
select distinct pid as pid, MAX(CONVERT(DATE, diaryDate, 103)) as diaryDate from # TempTable t group by pid
DECLARE #tempContacts TABLE
(pid nvarchar(200))
insert into #tempContacts(pid)
select pid from #contactsTable
DECLARE #tempDiaryDate TABLE (diaryDate date)
insert into #tempDiaryDate(diaryDate)
select distinct MAX(CONVERT(DATE, diaryDate, 103)) from #TempTable
select t.* from #TempTable t inner join (select distinct customerName, M AX(CONVERT(DATE, diaryDate, 103)) AS diaryDate from #TempTable group by customerName) tt on t t.customerName=t.customerName
where t.pid not in
(select Pno from ProjectDiary where convert(date,[Date Of Next Call],103) > GETDATE())
and t.viewIcon <> '098'
and t.viewIcon <> '163'
and t.viewIcon <> '119'
and t.pid in (select distinct pid from #tempContacts)
and CONVERT(DATE, t.diaryDate, 103) in (select distinct CONVERT(DATE, diaryDate, 103) f rom #tempDiaryDate)
order by CONVERT(DATE, tt.diaryDate, 103)
I am trying to get all the distinct customerName's using the max date to determine which record it uses.
Use a subquery. Without going through your entire sql statement, the general idea is:
Select [Stuff]
From table t
Where date = (Select Max(Date) from table
where customer = t.customer)