I want to use left outer join like this:
SELECT ...
FROM Table1
LEFT OUTER JOIN
(SELECT only e.g. 3rd record... , SomeField FROM Table2) tbl2
ON Table1.SomeField = tbl2.SomeField
How can I do that, if I need the subquery to select not just the 3rd record from Table2, but the 3rd record among the Table2 records that have SomeField = Table1.SomeField?
Thanks.
If this is sql server 2005 or newer, you might use row_number():
LEFT JOIN
(
select *
from
(
select *,
row_number() over (order by something) rn
from Table2
where Table2.Column = Table1.Column
) a
where a.rn = 3
) a
Unfortunately you need to nest it a level deeper because you cannot use row_number in a condition directly.
EDIT:
My bad - i didn't really notice the join part. If you want to join derived table, use this:
LEFT JOIN
(
select *,
row_number() over (partition by SomeField order by something) rn
from Table2
) tbl2
ON Table1.SomeField = tbl2.SomeField
AND tbl2.rn = 3
Note: you need ORDER BY in row_number() to keep things consistent.
Related
SELECT DISTINCT(t1.Ticker),t2.SecurityID,t2.ClosePrice,t2.QuoteDateTime FROM [Hub].[SecurityMaster].[SecurityMasterDetails] as t1
INNER JOIN [Hub].[SecurityMaster].[SecurityPrices] as t2
ON t2.SecurityID =t1.SecurityID
WHERE t2.QuoteDateTime IN (SELECT max(QuoteDateTime) FROM [Hub].[SecurityMaster].[SecurityPrices]) AND t1.SecurityTypeName = 'REIT'
I get an output with no data. The subquery doesn't run along with the other filter in the WHERE clause. I am not sure what I am doing wrong. Can somebody please help!
If you are trying to get the lastest row from SecurityPrices for each Ticker, one option is to use cross apply():
select --distinct /* distinct not needed if `Ticker` is unique on `smd`
smd.Ticker
, sp.SecurityID
, sp.ClosePrice
, sp.QuoteDateTime
from [Hub].[SecurityMaster].[SecurityMasterDetails] as smd
cross apply (
select top 1
i.SecurityID
, i.ClosePrice
, i.QuoteDateTime
from [Hub].[SecurityMaster].[SecurityPrices] i
where i.SecurityID = smd.SecurityID
order by i.QuoteDateTime desc
) as sp
where SecurityTypeName = 'REIT' /* which table does this column belong to? */
I think your query would be
SELECT DISTINCT TOP 1 WITH TIES
t1.Ticker,
t2.SecurityID,
t2.ClosePrice,
t2.QuoteDateTime
FROM [Hub].[SecurityMaster].[SecurityMasterDetails] as t1
INNER JOIN [Hub].[SecurityMaster].[SecurityPrices] as t2 ON t2.SecurityID =t1.SecurityID
WHERE SecurityTypeName = 'REIT'
ORDER BY t2.QuoteDateTime DESC
You aren't getting results because the max(QuoteDateTime) record doesn't have SecurityTypeName = 'REIT'. I think you want the max(QuoteDateTime) for this SecurityTypeName, so this can be done with an INNER JOIN.
SELECT DISTINCT
(t1.Ticker),
t2.SecurityID,
t2.ClosePrice,
t2.QuoteDateTime
FROM [Hub].[SecurityMaster].[SecurityMasterDetails] as t1
INNER JOIN [Hub].[SecurityMaster].[SecurityPrices] as t2
ON t2.SecurityID =t1.SecurityID
INNER JOIN
(SELECT max(QuoteDateTime) DT FROM [Hub].[SecurityMaster].[SecurityPrices]) P on P.DT = t2.QuoteDateTime
WHERE SecurityTypeName = 'REIT'
EDIT
Your data doesn't have what you think it does, I suspect. Here is how you can check...
--Find the SecurityID that matches the max date
SELECT
SecurityID ,
max(QuoteDateTime) DT
FROM [Hub].[SecurityMaster].[SecurityPrices]
GROUP BY SecurityID
--I'm betting this ID isn't in your SecurityMasterDetails where the Type is REIT
SELECT DISTINCT
SecurityID
FROM SecurityMasterDetails
WHERE SecurityTypeName = 'REIT'
Since the SecurityID returned in the first query isn't in the second query result set, you are going to get NULL results.
In a single database, I have three tables as below:
I want to concatenate them in some single table, any suggestion?
If I am understanding correctly your answer you want something like this:
CREATE TABLE COMBINED (/*Insert the set of fields here*/);
GO
INSERT INTO COMBINED
SELECT Table1.ProposalId
, /*all other Table1 fields*/
, Table2.ProposalId
/*all other Table2 fields*/
, Table3.ProposalId
, /*all other Table2 fields*/
FROM Table1
FULL JOIN Table2
ON Table1.ProposalId = Table2.ProposalId
FULL JOIN Table3
ON Table1.ProposalId = Table3.ProposalId;
This will match the rows with the same proposal id (but keep the all the its values as proposalid_1,proposalid_2... and for those that do not match will bring the full row and NULL for every other fields of the rest of the tables.
Thanks for your help the issue has been solved.
SELECT mtlreq.proposalid, mtlreq.prp_mtlreq_taskgrp,mtlreq.prp_mtlreq_taskcode,mtlreq.prp_mtlreq_itemcode,mtlreq.prp_mtlreq_rateper,mtlreq.prp_mtlreq_qty,mtlreq.prp_mtlreq_Inter_MaterCost,mtlreq.prp_mtlreq_UOM,mtlreq.item_short_desc, resreq.proposalid,resreq.prp_resreq_taskcode ,resreq.prp_resreq_resource,resreq.prp_resreq_usage,resreq.prp_resreq_uom,resreq.prp_resreq_rate,resreq.prp_resreq_overhd_pers
FROM (
SELECT proposalid,prp_mtlreq_taskgrp,prp_mtlreq_taskcode,prp_mtlreq_itemcode,prp_mtlreq_rateper,prp_mtlreq_qty,prp_mtlreq_Inter_MaterCost,prp_mtlreq_UOM,item_short_desc,
ROW_NUMBER() OVER (ORDER BY proposalid) AS rn
FROM prjdet_prp_taskwork_mtlreq ) AS mtlreq
FULL OUTER JOIN (
SELECT proposalid,prp_resreq_taskcode ,prp_resreq_resource,prp_resreq_usage,prp_resreq_uom,prp_resreq_rate,prp_resreq_overhd_pers,
ROW_NUMBER() OVER (ORDER BY proposalid) AS rn
FROM prjdet_prp_taskwork_resreq) AS resreq
ON mtlreq.rn = resreq.rn
FULL OUTER JOIN (
SELECT proposalid,mtprp_delv_lineno,mtprp_delv_itemcode,mtprp_delv_cost,mtprp_delv_linelevelmrg,mtprp_delv_proposedamt,
ROW_NUMBER() OVER (ORDER BY proposalid) AS rn
FROM prjproposal_delidtl ) AS delidtl
on mtlreq.rn = delidtl.rn and resreq.rn=delidtl.rn
I have the following tables:
MASTER table (ID(PK), NAME, etc)
DETAIL table (ID(PK), IDMASTER(FK), VALUE1, DATE1, etc)
What I need is a SQL query or a way to do a select like
I work with SQL Server.
What I need is a SQL query or a way to do a select like
SELECT
M.ID, M.NAME,
(SELECT TOP 1 DT.ID, DT.VALUE1
FROM DETAIL D
WHERE D.IDMASTER = M.ID
ORDER BY DATE 1 DESC)
-- more than one column with a where clause and an order clause
FROM
MASTER M
Use OUTER APPLY:
SELECT M.ID,
M.NAME
D.ID,
D.VALUE1
FROM dbo.[MASTER] M
OUTER APPLY(SELECT TOP 1 ID, VALUE1
FROM dbo.DETAIL
WHERE IDMASTER = M.ID
ORDER BY [DATE] DESC) D;
You do this with APPLY operator:
select * from master m
outer apply(select top 1 * from detail d where d.masterid = m.id order by d.date1 desc)oa
My first stored procedure (in sql-server). I'm not able to make it work, it raises a warning in a.Id
After reading, and not really understand much, I'm not even sure if I can use this inner join inside a stored procedure.
select top 1 b.*, a.*
FROM Bids b
INNER JOIN Auctions a
ON b.Auction_Id = a.Id
(NOLOCK) WHERE ( a.Ends IS NOT NULL AND a.Starts IS NOT NULL AND a.Starts < #Now AND a.Ends > #Now)
ORDER BY b.CreationTime DESC
Actually, I'll need just b.* but I assume I have to retrieve all the fields?.
Thanks
Change the locking hint to this:
INNER JOIN Auctions a WITH(NOLOCK)
Full query would be:
select top 1 b.*, a.*
FROM Bids b
JOIN Auctions a WITH(NOLOCK) ON b.Auction_Id = a.Id
WHERE ( a.Ends IS NOT NULL
AND a.Starts IS NOT NULL
AND a.Starts < #Now
AND a.Ends > #Now)
ORDER BY b.CreationTime DESC
Take the (Nolock) out, or put it after the table name if you need it.
You can use Select to select any fields you want from any table in your query.
When I run the code below the ROWID is always 1.
I need to the ID to start at 1 for each item with the same Credit Value.
;WITH CTETotal AS (SELECT
TranRegion
,TranCustomer
,TranDocNo
,SUM(TranSale) 'CreditValue'
FROM dbo.Transactions
LEFT JOIN customers AS C
ON custregion = tranregion
AND custnumber = trancustomer
LEFT JOIN products AS P
ON prodcode = tranprodcode
GROUP BY
TranRegion
,TranCustomer
,TranDocNo)
SELECT
r.RegionDesc
,suppcodedesc
,t.tranreason as [Reason]
,t.trandocno as [Document Number]
,sum(tranqty) as Qty
,sum(tranmass) as Mass
,sum(transale) as Sale
,cte.CreditValue AS 'Credit Value'
,RANK() OVER (PARTITION BY cte.CreditValue ORDER BY cte.CreditValue)AS ROWID
FROM transactions t
LEFT JOIN dbo.Regions AS r
ON r.RegionCode = TranRegion
LEFT JOIN CTETotal AS cte
ON cte.TranRegion = t.TranRegion
AND cte.TranCustomer = t.TranCustomer
AND cte.TranDocNo = t.TranDocNo
GROUP BY
r.RegionDesc
,suppcodedesc
,t.tranreason
,t.trandocno
,cte.CreditValue
ORDER BY CreditValue ASC
EDIT
All the credit values with 400 must have the ROWID set to 1. And all the credit values with 200 must have the ROWID set to 2. And so on and so on.
Do you need something like this?
with cte (item,CreditValue)
as
(
select 'a',8 as CreditValue union all
select 'b',18 union all
select 'a',8 union all
select 'b',18 union all
select 'a',8
)
select CreditValue,dense_rank() OVER (ORDER BY item)AS ROWID from cte
Result
CreditValue ROWID
----------- --------------------
8 1
8 1
8 1
18 2
18 2
In your code replace
,RANK() OVER (PARTITION BY cte.CreditValue ORDER BY cte.CreditValue)AS ROWID
by
,DENSE_RANK() OVER (ORDER BY cte.CreditValue)AS ROWID
You just don't have to use PARTITION, just DENSE_RANK() OVER (ORDER BY cte.CreditValue)
I think the problem is with the RANK() OVER (PARTITION BY clause
you have to partition it by item not by CreditValue
Try this
RANK() OVER (PARTITION BY cte.CreditValue ORDER BY cte.RegionDesc)AS ROWID
Edit: The issue here isn't actually the nesting of the subquery, it's potentially based on partition by having columns that truly make each row unique (or 1)
Rather than ranking within your complex query like this
select
rank() over(partition by...),
*
from
data_source
join table1
join table2
join table3
join table4
order by
some_column
Try rank() or row_number() on the resulting data set, not within it.
For example, using the query above, remove rank() and implement it this way:
select
rank() over(partition by...),
results.*
from (
select
*
from
data_source
join table1
join table2
join table3
join table4
order by
some_column
) as results