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.
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.
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.)
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);
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);
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
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
SELECT res.res_id, sub.value('(./@id)[1]', 'char(2)') id FROM vwResult res CROSS APPLY report.nodes('/clue_personal_auto/report/search_dataset/subjects/*') report(sub)
It works just fine in SQL Query.After placing this into a view in SSDT November 2012 update, I get a compilation error.
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?
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],
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?
I was reading Kenneth Fisher's and Dwain Camps' articles on unpivoting using cross apply... And I can actually get them to work....
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) ,City1 VARCHAR(500), City2 VARCHAR(500), City3 VARCHAR(500))
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!)
See sample data below. I'm trying to count the number of occurrences of strings stored in table @word without a while loop.
DECLARE @t TABLE (Id INT IDENTITY(1,1), String VARCHAR(MAX))
INSERT INTO @t SELECT 'There are a lot of Multidimensional Expressions (MDX) resources available' AS String UNION ALL SELECT 'but most teaching aids out there are geared towards professionals with cube development experience' UNION ALL
I'm unable to reproduce the error. when they upgrade their OS and SQL EXPRESS to a more recent version the error disappears.
The error is: Incorrect syntax near '.'
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
I've tried to reproduce the error by setting up virtual machines with same OS and SQL but, again, can't reproduce.
Looking to see if thier is a better way to find the last record entered in a group of records.
What I'm doing now is finding the max for the secound column and then doing a sub query to find the max of the third column having the second columns equal.
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
The parent program addes a row every time the data is changed. To make things worst; the records arn't always in sqenal order like the above table and some time edits the row instead.
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 )
Explain the current code. It uses the two sub queries to find the correct record ID that has the data needed.
The "Last" function in the query below (line 4 & 5) is not exactly what I'm after. The last function finds the last record in that table, but i need to find the most recent record in the table according to a date field.
Code: SELECT tblinmate.statusid, tblinmate.activedate, Last(tblclassificationhistory.classificationid) AS LastOfclassificationID, Last(tblsquadhistory.squadid) AS LastOfsquadID, tblperson.firstname, tblperson.middlename, tblperson.lastname,
[Code] ....
The query below finds the most recent record in a table according to a date field, my problem is i dont know how to integrate this Query into the above to replace the "Last" function
Code: SELECT a.inmateID, a.classificationID, b.max_date FROM ( SELECT tblClassificationHistory.inmateID, tblClassificationHistory.classificationID,
I am using CROSS APPLY instead of UNPIVOT to unpivot > one column. I am wondering if I can dynamically replace column names based on different tables? The example code that I have working is based on the "Allergy" table. I have thirty more specialty tables to go. I'll show the working code first, then an example of another table's columns to show differences:
select [uplift specialty], [member po],[practice unit name], [final nomination status] ,[final uplift status], [final rank], [final uplift percentage] ,practiceID=row_number() over (partition by [practice unit name] order by Metricname) ,metricname,Metricvalue, metricpercentilerank
[code]....
Rheumatology Table:The columns that vary start with "GDR" and [GDR Percentile Rank] so I'm just showing those:
Hi, I'm making a birthdays database where I want to list everyone in it ordered by the firstcoming birthdays according to the current date.
I have all the birthday records stored in a table called bursdager and the person name is stored in the navn column and the persons birthday date is stored in the dato column.
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()) ORDER BY DATEPART(month, dato), DATEPART(day, dato)
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:
AND DATEPART(day, dato) >= DATEPART(day, getdate())
in the WHERE clause of the SELECT statement but that won't be correct either because it then just lists everyone based on whether the day number the person was born is higher or less than the day number of the current date.
Anyone have any suggestions? Is there an easier way to do it?
I have the following tableCREATE TABLE Readings(ReadingTime DATETIME NOT NULL DEFAULT(GETDATE()) PRIMARY KEY,Reading int NOT NULL)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20050101', 1)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20050201', 12)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20050301', 15)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20050401', 31)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20050801', 51)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20051101', 106)GO-- list the tableSELECT ReadingTime, Reading FROM ReadingsGOIt is a table of readings of a free-running counter that istime-stamped. I need to determine the value of the reading thatcorresponds to the closest date to the supplied dateAre there more optimal/efficient ways of accomplishing this than thefollowing?DECLARE @when DATETIMESET @when = '20050505'SELECT TOP 1 ReadingTime, Reading FROM ReadingsORDER BY abs(DATEDIFF(minute, ReadingTime, @when))The above gives me the desired result of ('20050401', 31).Any suggestions would be appreciated
I have a database that keeps track of pledges, scheduled reminders, and payments. A user sets up a pledge and then sets up a schedule for reminders to be sent for each payment of the pledge. Pledge table - PledgeID,PledgeDate,PledgeAmount,etc... ScheduledReminders table - ScheduleID,PledgeID,DueDate,ReminderDate,ReminderPrintedDate,ReminderPaidDate AppliedPayments table - ScheduleID,PaymentID,PaidAmount,PaidDate (Junction table between ScheduledReminders and PledgePayments PledgePayments table PaymentID,PaymentAmount,PaymentDate What I need to know is, when a payment is being Inserted I need the payment amount applied to the oldest scheduled reminder record that has not been paid. But if the payment is more than the amount shown in the schedule reminder record, I need the balance to be applied to the next oldest schedule reminder record, etc... Can anyone offer some good suggestions or examples on how to do this?
I would like to return the nearest date of Table B in my table like for
ID W001 in table B should return ID A002 CreatedDatetime: 2014-06-03 20:05:48.000 ID W002 in table B should return ID A004 CreatedDatetime: 2014-06-04 01:05:48.000
I tried checking to see if the point at which the reader was, that if it was the record I am looking for to go ahead and add the table data to a label. But for some reason it's only taking the first record in the database and not the one I thought I was at.[CODE] public void UpdateMaleHistLbl() { SqlConnection conn = new SqlConnection("Server=localhost\SqlExpress;Database=MyFamTree;" + "Integrated Security=True"); SqlCommand comm = new SqlCommand("SELECT * FROM FatherHistTable, MotherHistTable, UsersTable WHERE UsersTable.UserName = @usrnmeLbl ", conn); comm.Parameters.AddWithValue("@usrnmeLbl", usrnmeLbl.Text); conn.Open(); SqlDataReader reader = comm.ExecuteReader(); while (reader.Read()) { string usr = reader["username"].ToString(); usr = usr.TrimEnd(); string pss = reader["password"].ToString(); pss = pss.TrimEnd(); if (usrnmeLbl.Text == usr) { if (hiddenpassLbl.Text == pss) { maleHistLbl.Text = reader["GG_Grandfather"] + " > "; maleHistLbl.Text += reader["G_Grandfather"] + " > "; maleHistLbl.Text += reader["Grandfather"] + " > "; maleHistLbl.Text += reader["Father"] + " > "; maleHistLbl.Text += reader["Son"] + " > "; maleHistLbl.Text += reader["Grandson"] + " > "; maleHistLbl.Text += reader["G_Grandson"] + " > "; maleHistLbl.Text += reader["GG_Grandson"] + "<br /><br />"; } } break; //exit out of the loop since user found } reader.Close(); conn.Close(); }}[/CODE]Thanks in advance
Can anyone advise me as to how I can add the date and time to 2 columns in the sql server database for each record that is added. I'd prefer not to use the webform. Can sql server add the date automatically to the row? thanks
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
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...)
