Find Nearest Date Record Without Cross Apply

Oct 13, 2012

Table :

ChangeID ChangeDate EquipmentID ModuleID EquipStatus
1 12/9/08 230 1789 Normal
2 13/9/08 450 1245 Normal
3 17/9/08 230 1789 Open
4 21/9/08 230 1899 Open
5 21/9/08 450 1674 Normal
6 22/9/08 450 2364 Normal

Given a date, what module was each equipment item in on that date?How do I get the date of the nearest previous event from a list like this? I got a query from one of the post in this Forum only using Cross Apply to find the nearest record from the above table based on Date i.e.

SELECT outerT.*
FROM your_table AS outerT
CROSS APPLY
(
SELECT TOP 1
equipment_id
, change_date
FROM your_table AS innerT
WHERE innerT.change_date <= @point_in_time
AND innerT.equipment_id = outerT.equipment_id
ORDER BY change_date DESC
) AS applicable_records
WHERE applicable_records.change_date = outerT.change_date

The problem is I need to get this query without using Cross Apply as i need to use the same for the LINQ which doesn't support Cross Apply.

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SQL Server 2012 :: CROSS APPLY Returning Records From Left Recordset Even When No Matching Record In Right One

Oct 7, 2014

Following is the query that I'm running:

create table a (id int, name varchar(10));
create table b(id int, sal int);
insert into a values(1,'John'),(1,'ken'),(2,'paul');
insert into b values(1,400),(1,500);

select *
from a
cross apply( select max(sal) as sal from b where b.id = a.id)b;

Below is the result for the same:

idname sal
1John500
1ken500
2paulNULL

Now I'm not sure why the record with ID 2 is coming using CROSS APPLY, shouldn't it be avoided in case of CROSS APPLY and only displayed when using OUTER APPLY.

One thing that I noticed was that if you remove the Aggregate function MAX then the record with ID 2 is not shown in the output. I'm running this query on SQL Server 2012.

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CROSS APPLY Vs OUTER APPLY Example Messed Up?

Nov 27, 2007

Hi... I'm reading the MS Press 70-442 Self-Paced Training kit, and I'm having problems with this example.
I'd like help getting it to work correctly, or understand why it is isn't working the way I planned.

On page 67, the lab is about the APPLY operator (CROSS APPLY and OUTER APPLY). I first have to input a sample table-valued function into the AdventureWorks database:




Code Block
CREATE FUNCTION fnGetAvgCost(@ProdID int)
RETURNS @RetTable TABLE (AvgCost money)
AS
BEGIN
WITH Product(stdcost)
AS
(
SELECT avg(standardcost) as AvgCost
FROM Production.ProductCostHistory
WHERE ProductID = @ProdID
)
INSERT INTO @RetTable
SELECT * FROM Product
RETURN
END



and then run a sample T-SQL statement





Code Block
SELECT p.Name, p.ProductNumber,
Convert(varchar, cost.AvgCost,1) AS 'Average Cost'
FROM Production.Product p
CROSS APPLY fnGetAvgCost(p.ProductID) AS cost
WHERE cost.AvgCost IS NOT NULL
ORDER BY cost.AvgCost desc

My problem is with the WHERE clause... According to page 56, CROSS APPLY returns only rows from the outer table that produces a result set, so why do I need to explicitly filter NULL values?

When I remove the WHERE clause, the query retrieves lots of NULL AvgCost values.

Again, according to page 56, it is the OUTER APPLY that returns all rows that return a result set and will include NULL values in the columns that are returned from the table-valued function.

So, in short, I don't see the difference between CROSS APPLY and OUTER APPLY, using this example, when I remove the WHERE clause?

(Please refrain from introducing another example into this question.)

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May 22, 2008

What is Cross Apply, when it will be used ?

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Apr 28, 2008

Hi,

Why am I getting a different numbers of distinct ids in those queries?


USE AdventureWorks
go
Declare @myXml as xml
set @myXml = '
<lol>omg</lol>
<lol>rofl</lol>
';

select locations.*, T.c.value('.','nvarchar(max)') from
(
select newid() as Id
from Production.ProductModel
where ProductModelID in (7, 8)
) as locations cross apply @myXml.nodes('(/lol)') T(c);

select mytable.* , T.c.value('.','nvarchar(max)') from
(
select newid() as Id
union
select newid()
) as mytable cross apply @myXml.nodes('(/lol)') T(c);


Thanks,

Victor

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Apr 29, 2008

I have a question, is there any equivalent for the CROSS APPLY operator in SQL server 2000?



I have the following code in SQL Server 2005 and it works fine, but I need an equivalent code in SQL server 2000.





SELECT *

FROM Customers Cust CROSS APPLY dbo.GetAccountAttributes(Cust.AccountNo) Att





what I need is to join a function and passing it a dynamic parameter.



I need it urgently





Thanks in advance,

Imad Elayyan

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CROSS APPLY Equivalent

Apr 29, 2008



I have a question, is there any equivalent for the CROSS APPLY operator in SQL server 2000?

I have the following code in SQL Server 2005 and it works fine, but I need an equivalent code in SQL server 2000.



SELECT *

FROM Customers Cust CROSS APPLY dbo.GetAccountAttributes(Cust.AccountNo) Att



what I need is to join a function and passing it a dynamic parameter.

I need it urgently


Thanks in advance,
Imad Elayyan

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Nov 7, 2007

I am trying to add Extended properties to each of the columns in my table('MyTable')to the columns

DECLARE @NewTableName as nvarchar(128);

SET @NewTableName = 'MyTable'


SELECT ColumnName FROM(

SELECT c.name as ColumnName

FROM syscolumns c

INNER JOIN sysobjects o

ON o.id = c.id

WHERE o.name = @NewTableName) as T

OUTER APPLY

sp_addextendedproperty( 'Caption', ColumnName,





'user', 'dbo',

'table', @NewTableName,

'column', ColumnName)


I am getting an invalid object name 'sp_addextendedproperty' error.


Jaime

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Apr 28, 2008

I've been trying to figure out why these two return a different amount of distinct ids...
Is that a bug in optimization?




Code Snippet


USE AdventureWorks
go
Declare @myXml as xml
set @myXml = '
<lol>omg</lol>
<lol>rofl</lol>
';

WITH locations as
(
select newid() as Id
from Production.ProductModel
where ProductModelID in (7, 8)
)
select locations.*, T.c.value('.','nvarchar(max)') from locations cross apply @myXml.nodes('(/lol)') T(c);

with mytable as
(
select newid() as Id
union
select newid()
)
select mytable.* , T.c.value('.','nvarchar(max)') from mytable cross apply @myXml.nodes('(/lol)') T(c);

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Nov 14, 2006

Good Afternoon,

I'm attempting to leverage SQL's new 'APPLY" operator and I guess I don't fully understand it proper usage.

This is a relatively simple request, first i want to count the models produced within a valid period of time. The first 'Cross Apply' gets the valid starting and ending dates and looks ups the number of models produced for the period of time. This section of code works perfectly fine.

The problem appears to be with the second "Cross Apply".  What I'm attempting to accomplish is to count all models produced, regardless of time frame.

When executed the query appears to go into an loop and I end up canceling out the request.

Any ideas where I went wrong?? Any help is greatly appreciated!

 

select b1.model                            as Model 
      ,b1.MinDate                            as Mfg_Str_Date
      ,b1.MaxDate                           as Mfg_End_Date
      ,Count(b2.Model+B2.Serial) as Mfg_Date_Valid
      ,Count(b3.Model+B3.Serial) as All_Units

from        (select b.model, min(b.build_date) as MinDate ,max(b.build_date) as MaxDate
             from etbl_models_Serial as b
             group by b.model) as b1

--These are Units produced within Valid Window
cross apply (select b2.model,b2.Serial
             from etbl_Production as b2
             where b2.Model = b1.Model
               and b2.Mfg_Date between b1.MinDate and b1.MaxDate) as b2

--These are all units produced
cross apply (select b3.model,b3.Serial
             from etbl_Production as b3
             where b3.Model = b2.Model) as b3
      
Group by b1.Model, b1.MinDate, b1.MaxDate
Order by b1.Model

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May 28, 2008

I can't figure out what can be causing this.

When I use this query

Select top 1000 a.EmployeeID,b.*
from #TmpActiveEmployeesWSeverance a
cross apply
dbo.fn_Severance_AccountItemsTable(a.EmployeeID,a.BenefitTypeID,null,null,null,null) b
order by a.EmployeeID,a.BenefitTypeID


It runs 4 seconds

If I try to insert the results into anything It runs > 5 minutes (I have yet to let it finish)

I have tried the two following pieces of code, both with the same results


Select top 1000 a.EmployeeID,b.*
into #Tmp
from #TmpActiveEmployeesWSeverance a
cross apply
dbo.fn_Severance_AccountItemsTable(a.EmployeeID,a.BenefitTypeID,null,null,null,null) b
order by a.EmployeeID,a.BenefitTypeID

--and
Insert Into TRP_ActiveEmployeesWSeverance
(EmployeeID
,PK
,BeginningBalance
,BenefitInterestRowID
,BenefitInterestID
,BenefitTypeID
,DateReceived
,InvoiceDate
,Amount
,Hours
,Fraction1
,Fraction2
,Interest
,InterestAmount
,StartDate
,EndDate
,PeriodApplied
,Offset
,Reserve
,Account
,BenefitClosedID
,PaidOut
,ClosedAccount
,ai
,ClosedDate
,StartAgain
,PartialDividend
,PartialFraction
,SameDateCount)
Select top 1000 a.EmployeeID,b.*
from #TmpActiveEmployeesWSeverance a
cross apply
dbo.fn_Severance_AccountItemsTable(a.EmployeeID,a.BenefitTypeID,null,null,null,null) b
order by a.EmployeeID,a.BenefitTypeID


Any thoughts as to what can be disrupting this?

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Sep 29, 2015

Will the order of inner joins and cross apply effect the results of a query?

Example:
FROM dbo.vw_Info v
CROSS APPLY dbo.usf_LastFee(v.StoreID, v.AgreementID, v.CustomerID, ABS(v.PrePaymentBalance), cp.ConfirmationNo) lf
INNER JOIN dbo.Customers c

[Code] ....

I want to change the position of doing "CROSS APPLY". Will it effects query results?

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 I have this query:

SELECT res.res_id,
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It works just fine in SQL Query.After placing this into a view in SSDT November 2012 update, I get a compilation error.

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Apr 29, 2008



Hello,

is it possible to use CROSS APPLY like this:



SELECT [x]

FROM [Order] CROSS APPLY (SELECT .OrderNo + 3) [x]



i know you need [x].* but is it possible to use a function so that only [x] is needed?

thx in advance for help
MattGo

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May 13, 2008



Hello,

I am doing a report that uses paging and in order to optimize it, i used row_number() so i could make it return x rows per page, so, in order to compute the number of pages needed, i have to count the total number of rows, which gets very slow because i'm using a cross apply with a table-valued function. Is there any way so i can get the number of rows processed by row_number() so i dont have the need to do count?

Thanks in advance !

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Nov 10, 2006

Hey guys. This is one of the queries pasted from BOL. I'm having problems excuting this query. The problem lies in the CROSS APPLY part. When I copy this query and run it in SSMS, it gives me an error saying 'Incorrect syntax near .' It doesn't like the qs.sql_handle part. If I remove that and pass the actual handle in for some query, it works. Can someone please tell me what I'm doing wrong?????? Also, I've sp1 installed on my SQL Server 2005 Enterprise, just in case if this matters. Below is the query pasted which is giving me problems. Thank you.

SELECT TOP 5 total_worker_time/execution_count AS [Avg CPU Time],

SUBSTRING(st.text, (qs.statement_start_offset/2)+1,

((CASE qs.statement_end_offset

WHEN -1 THEN DATALENGTH(st.text)

ELSE qs.statement_end_offset

END - qs.statement_start_offset)/2) + 1) AS statement_text

FROM sys.dm_exec_query_stats AS qs

CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS st

ORDER BY total_worker_time/execution_count DESC;

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Jul 10, 2015

If I Have a table like

Id(identity), PupilPersonId, EducationTypeId,VehicleTypeId,EducationDate, EducatorId,Canceled
661187       9242382         2                       1                2015-07-07 00:00:00.000 O_2 False
661183       9242382         2                       1            2015-07-08 00:00:00.000 O_2 False
661186       9242382         1                       1                2015-07-08 00:00:00.000 O_2 False
661178       9242382         2                       1                2015-07-10 00:00:00.000 O_2 False
661185       9242382         2                       1                2015-07-10 00:00:00.000 O_2 False

The result I want is the unique rows from columns:  

PupilPersonId, EducationTypeId,VehicleTypeId AND there MAX EducationDate
SELECT er1.* FROM EducationResult er1
INNER JOIN
(
SELECT
er.PupilPersonId, er.EducationTypeId, er.VehicleTypeId, MAX(er.EducationDate) as EducationDate

[Code] ....

I like to know is there another approach with CTE and or Cross Apply I can use instead?

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Jan 15, 2014

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CREATE TABLE #TxCycle(
Cycle INT NOT NULL,
PatientID INT NOT NULL,
ALOPECIA TINYINT,
Causality1 TINYINT,
Relatedness1 TINYINT,

[Code] ....

The one thing I was wondering was this: how do I extract the symptom names from the field list without knowing them all beforehand? Dwain does this

-- DDL and sample data for UNPIVOT Example 2
CREATE TABLE #Suppliers
(ID INT, Product VARCHAR(500)
,Supplier1 VARCHAR(500), Supplier2 VARCHAR(500), Supplier3 VARCHAR(500)
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Can this be adapted if you don't know all the column names beforehand? (Likely not). Back in the dark ages, when I was working on a database like this, it was in Access, and I could loop over the fields collection and evaluate each field name. (Yes, I know you're not supposed to store information in field names, but I inherited that mess!)

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INSERT INTO @t
SELECT 'There are a lot of Multidimensional Expressions (MDX) resources available' AS String UNION ALL
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Sep 9, 2015

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the query in question resembles this:

Select column1, column2
from Table1 T
cross apply function(t.column4,t.column5) F
where column3 = 'XXXX'

I made sure that the compatibility level is greater than 90 this error is happening on SQL2005 SP2 as well as SQL2008 with SP2 (but not all clients are suffering from the same problem)

Can it be the .net framework? Although the machines had .net framework 3.52.

Can the OS be an issue? The OS' seem to be old, Windows Server 2008 SP2

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Oct 1, 2007

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Table example using simplied data.






PolId

CoveragId

EffDate

Status

Limit1


2

1

9/7/2007

a

10000


2

2

9/7/2007

a

150000


2

2

10/1/2007

a

200000


3

1

9/7/2007

a

10000

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The current query returns a single value. from a single table.

Current code used in the select protion on a larger query. bpi = basicpolicyInformation.

( Select c1.limit1
From AFW_Coverage as c1
Where c1.PolId=bpi.PolId
and c1.CoverageId = (select max(CoverageId) as CoverageId
From AFW_Coverage as c
where c.PolId = c1.PolId
and c.CoverageCode = 'Dwelling'
and status <> 'D'
)
and c1.effDate = (select max(Effdate) as Effdate
From AFW_Coverage as c
where c.PolId = c1.PolId
and c.CoverageID = c1.CoverageId
)


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Code:
SELECT
tblinmate.statusid,
tblinmate.activedate,
Last(tblclassificationhistory.classificationid) AS LastOfclassificationID,
Last(tblsquadhistory.squadid) AS LastOfsquadID,
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tblperson.middlename,
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[Code] ....

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Code:
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FROM (
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[code]....

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GDR PGS (nvarchar(255), null)
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[Code] ....

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I'm having some problems, currently I have this statement:


Code:


DECLARE @tbl TABLE (navn VARCHAR(60), dato DATETIME)


INSERT INTO @tbl
SELECT navn, dato FROM bursdager
WHERE DATEPART(month, dato) >= DATEPART(month, getdate())
ORDER BY DATEPART(month, dato), DATEPART(day, dato)


INSERT INTO @tbl -- those are the one who allready have had birthday this year
SELECT navn, dato FROM bursdager
WHERE DATEPART(month, dato) < DATEPART(month, getdate())
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SELECT * FROM @tbl





It works *allmost* as it should-- except, it still lists the last persons who had birthday first, even the days after their birthday if the month is still the same.

I thought about adding an additional check:
Code:

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W001 CB112014-06-03 20:30:48.000
W002 CB112014-06-04 01:30:48.000

Table B

IDItemQtyCreatedDatetime
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Apr 19, 2015

My requirement is to get the earliest start date after a gap in a date column.My date field will be like this.

Table Name-XXX
StartDate(Column Name)
2014/10/01
2014/11/01
2014/12/01

[code]...

 In this scenario i need the latest start date after the gap ie. 2015/09/01 .If there is no gap in the date column i need 2014/10/01

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Transact SQL :: Find Latest Start Date After A Gap In Date Field For Each ID

Apr 23, 2015

My requirement is to get the latest start date after a gap in a month for each id and if there is no gap for that particular id minimum date for that id should be taken….Given below the scenario

ID          StartDate
1            2014-01-01
1            2014-02-01
1            2014-05-01-------After Gap Restarted
1            2014-06-01
1            2014-09-01---------After last gap restarted
1            2014-10-01
1            2014-11-01
2            2014-01-01
2           2014-02-01
2            2014-03-01
2            2014-04-01
2            2014-05-01
2            2014-06-01
2            2014-07-01

For Id 1 the start date after the latest gap is  2014-10-01 and for id=2 there is no gap so i need the minimum date  2014-01-01

My Expected Output
id             Startdate
1             2014-10-01
2             2014-01-01

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How To Find The Odd Record Out....

Mar 22, 2007

Code:


"SELECT " & _
"Asset_Number, Inv_ID " & _
"FROM " & _
"tbl_Asset "



OKay looking at this highly simplified query here is my problem.
We have a ton of Asset numbers that are the same and for each asset number the inv_id should also be the same.....

However, since this data gets entered by humans - sometimes the inv_id is wrong....
I need to figure out a query that fleshes out the rows where asset_nums are the same but inv_id is different than other rows...?

Of course this may be impossible.....
I mean what if there was only two records by the same asset_num and each inv_id was different?
How could the query know which was the right one......

I need to run a report that finds the invalid inv_id's so that they can corrected.....


any thoughts on how this is done?

My thoughts are - using an inner select...
something to the effect of :

SELECT ....
FROM
(SELECT * WHERE (inv_id = inv_id) > 1)
GROUP BY asset_num.........


I just dont know exactly what the correct syntax is....

muchas gracias....

(btw this is actually ms-sql but mysql forum is so much more popular and the syntaxes are similar enough....thank you...)

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