Removing Old Records While Retaining Recent Ones
Apr 12, 2006
Hey guys, I have a table full of data that has duplicate records except for two date columns (date1 and date2). What I would like to do is remove the duplicates while retaining the most recent record, how can I do this?
So record 1 looks like this:
Code:
John | Smith | 08/08/2000 | 10/10/2000
Record 2 looks like this:
Code:
John | Smith | 08/10/2005 | 10/10/2005
I'd like to remove the first instance and keep the second (most recent one).
Ideas?
Thanks!
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May 15, 2008
Hi All,
I am writing a SP where I need to pass an value to maintain records of last n days. In this SP I am deleting a couple of tables based on the value passed to this SP. For e.g. If the SP is passed the value 10, then only TOP 10 records is maintained, the rest are deleted.
I have formed the following logic, which I feel can be improved vastly.
I create a temp table and
CREATE TABLE #TempAuditTbl (Rownum int PRIMARY KEY, Orderid uniqueidentifier)
INSERT INTO #TempAuditTbl
SELECT ROW_NUMBER() OVER (ORDER BY orderdate desc) AS rownum, Orderid FROM Orders
DELETE Orders FROM Orders INNER JOIN #TempAuditTbl adt ON adt.Orderid = Orders.Orderid AND rownum > @TopnRows
DROP TABLE #TempAuditTbl
OR
DELETE FROM Orders WHERE orderid NOT IN ( SELECT TOP @TopnRows OrderID FROM Orders ORDER BY OrderDate desc)
This way I am able to keep the top n records.
Which of these two solutions is more efficient? Is there a more efficient way to achieve the same.
Please help.
Thanks & regards
Sunil
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Sep 28, 2007
I have tested the code below to remove duplicate table entries based on the field IntOOS. This code works; however, I want to ensure I am removing the oldest entries and keeping the most recent entry. The field to key on this would be something like Max(ID). What would be the best way to ensure I keep the most recent table entry?
/*** Removes duplicate rows from ampfm.rpt_AdtVisitDiag table
by Chuck King 20070928
***/
;WITH CTE
as
(
SELECT
ROW_NUMBER() OVER (Partition By IntOOS Order BY IntOOS) AS ROWID
,DischDate
,AdmDiagCode
,ID
,AdmDiagCodeDesc
,AdmittingDiagnosis
,AnyDx
,DischDx
,ECode
,IntOOS
,PrinDxAnesDesc
,PrinDxAnesInd
,PrinDxCode
,PrinDxCondDesc
,PrinDxCondInd
,PrinDxDesc
,PrinDxEqualsAdmDxYnu
,SecDx10AnesDesc
,SecDx10AnesInd
,SecDx10Code
,SecDx10CondDesc
,SecDx10CondInd
,SecDx10Description
,SecDx11AnesDesc
,SecDx11AnesInd
,SecDx11Code
,SecDx11CondDesc
,SecDx11CondInd
,SecDx11Description
,SecDx12AnesDesc
,SecDx12AnesInd
,SecDx12Code
,SecDx12CondDesc
,SecDx12CondInd
,SecDx12Description
,SecDx13AnesDesc
,SecDx13AnesInd
,SecDx13Code
,SecDx13CondDesc
,SecDx13CondInd
,SecDx13Description
,SecDx14AnesDesc
,SecDx14AnesInd
,SecDx14Code
,SecDx14CondDesc
,SecDx14CondInd
,SecDx14Description
,SecDx15Code
,SecDx15Description
,SecDx1AnesDesc
,SecDx1AnesInd
,SecDx1Code
,SecDx1CondDesc
,SecDx1CondInd
,SecDx1Description
,SecDx2AnesDesc
,SecDx2AnesInd
,SecDx2Code
,SecDx2CondDesc
,SecDx2CondInd
,SecDx2Description
,SecDx3AnesDesc
,SecDx3AnesInd
,SecDx3Code
,SecDx3CondDesc
,SecDx3CondInd
,SecDx3Description
,SecDx4AnesDesc
,SecDx4AnesInd
,SecDx4Code
,SecDx4CondDesc
,SecDx4CondInd
,SecDx4Description
,SecDx5AnesDesc
,SecDx5AnesInd
,SecDx5Code
,SecDx5CondDesc
,SecDx5CondInd
,SecDx5Description
,SecDx6AnesDesc
,SecDx6AnesInd
,SecDx6Code
,SecDx6CondDesc
,SecDx6CondInd
,SecDx6Description
,SecDx7AnesDesc
,SecDx7AnesInd
,SecDx7Code
,SecDx7CondDesc
,SecDx7CondInd
,SecDx7Description
,SecDx8AnesDesc
,SecDx8AnesInd
,SecDx8Code
,SecDx8CondDesc
,SecDx8CondInd
,SecDx8Description
,SecDx9AnesDesc
,SecDx9AnesInd
,SecDx9Code
,SecDx9CondDesc
,SecDx9CondInd
,SecDx9Description
,VisitTypeCode
,accountnumber
,DischVisitTypeCode
FROM ampfm.rpt_AdtVisitDiag
)
--Select * From CTE
Delete From CTE Where ROWID > 1
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Feb 6, 2007
i have a datetime field in the post tables.
I would like to get the records within the latest 7 days.
Are there any functions for doing something like this?
my current query is something like
select * from post where creation_time ....
Thank you
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Mar 11, 2008
Ok, I was able to find the most recent Effective date and it works well. The only problem I am having is with the CarrierName. See there are different Carriers with so then it makes us have Mult effective dates. I need to pull the most recent effective date with carrier. So, I though to max the pcsiNumber2, but that didn’t work. Do you have any other ideas? Let me know.
Select Distinct
--PCSNumber,
PCSINumber1,
max(PCSINumber2) as mostrecentPCS,
LastName,
FirstName,
State,
--InsuranceCarrier,
CarrierName,
MAX(CoverageEffectiveDate)as MostRecentEff,
MAX(TerminationDate) as MostRecentTerm,
AmtPerClaim,
Aggreg
FROM VW_Medical_Malpractice_Project
Where
State = 'PA'
Group By PCSINumber1, LastName,FirstName,State,CarrierName,AmtPerClaim,Aggreg
Order By PCSINumber1
Example
000043010003MUSSER WILLIAM American Professional Agency2002-06-01
000043010002MUSSERWILLIAM Columbia Casualty2000-02-20
000043010001MUSSERWILLIAMMCIC Vermont Inc.1998-07-01
000043010004MUSSERWILLIAMProMutual Insurance Co.2005-05-16
000043010005MUSSERWILLIAMTri-Century Insurance Company2007-01-01
So, what I need is the most recent effective date which would be 2007-01-01, which I have but what is not letting me do this is the names, the 5ith column. I was trying to use the 2nd column to use the max , but it is not working. What am I doing wrong. I need the whole last row, but that number 0005 can change because there may only be 2 dup records.
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Mar 31, 2008
If I have tables like Customer (Id, First, Last, Address, etc.), CustomerEvent (EventCode, EventDate, CustomerId), EventTypes(Code, Description) how would I get all of the CustomerIds where the latest CustomerEvent record is a cancel and it happened within the last 60 days?
If I just do a select max(EventDate) and put EventTypes.Code='cancel' in the where clause it picks up records where the customer has done other things since the cancel.
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Jul 12, 2006
I want to display some horse racing results I have on a page but I only want to show the results for the last 7 days.
I have fields for date, time of race, horses name and result.
How can I just get records within the last 7 days to display?
I'm new to this SQL malarky so please be gentle!
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Dec 15, 2007
Using MS SQL 2005, how can I SELECT only the records whos date field is equal to the most recent date held in that field?
For example:
date item colour
---- ---- ------
12/15/2007 shirt red
12/13/2007 shirt black
12/15/2007 shirt blue
result(s) expected:
12/15/2007 shirt red
12/15/2007 shirt blue
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Nov 5, 2014
The database consists of the following tables:
create table dbo.customer (
customer_id int identity primary key clustered,
customer_name nvarchar(256) not null
)
create table dbo.purchase_order (
purchase_order_id int identity primary key clustered
customer_id int not null,
amount money not null,
order_date date not null
)
Implement a query for the report that will provide the following information: for each customer output at most 5 different dates which contain abnormally high or low amounts (bigger or less than 3 times SDTDEV from AVG), for each of these dates output minimum and maximum amounts as well.
Possible result: [URL] ......
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Dec 2, 2005
Hi,
Need to remove the duplicated rows from a table which has text/ntext/image type columns. The table does not have any PK/Unique column. (I accept its a bad data model). But currently changing the data model is not possible. Hence doing changes in application.
I couldn't do 'SELECT DISTINCT * from table', since the table has text columns. Though there is no PK constraint, If I know that col1 and col2 are join PKs in the table, Is that possible to select the distinct rows from such a table.
Please advise,
Thanks,
MiraJ
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Dec 5, 2007
Dear All
This is query i have written is giving following output.
FormCodeRefCodeSerialnoDateTime
R1-196H1-68A12232138/6/2007 19:38:11
R1-196H1-68A12232138/6/2007 19:38:14
R1-205H1-67XS23124148/6/2007 19:36:08
R1-205H1-67XS23124148/6/2007 19:36:10
R1-220H1-66F433365348/6/2007 19:30:27
R1-220H1-66F433365348/6/2007 19:30:29
R1-400H1-64ER53436648/6/2007 19:24:23
R1-400H1-64ER53436648/6/2007 19:24:26
R1-408H1-65TE4626268/6/2007 19:24:23
R1-408H1-65TE4626268/6/2007 19:25:00
I want the output like this,it should take only Min Datecreated
FormCodeRefCodeSerialnoDateTime
R1-196H1-68A12232138/6/2007 19:38:14
R1-205H1-67XS23124148/6/2007 19:36:08
R1-220H1-66F433365348/6/2007 19:30:27
R1-400H1-64ER53436648/6/2007 19:24:23
R1-408H1-65TE4626268/6/2007 19:24:23
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Jul 11, 2006
I have a table that holds the following
1 7530568 87143 OESCHD 1/5/2006 6:31:58 AM
1 7530568 87143 OESCHD 1/5/2006 7:02:36 AM
for each 7530568 ordernumber there should only be one OESCHD status.
This is the query I'm using to insert the data sent to me.
INSERT INTO ORDER_EVENTS
SELECT d.division as division,
dt.orderNum as orderNum,
dt.poNum as poNum,
dt.statusCode as statusCode,
dt.statusChangeDate as statusChangeDate
FROM dt_Order_Events dt INNER JOIN
division d ON dt.division = d.divisionShort INNER JOIN
status s ON s.division = d.division AND s.statCode = dt.statusCode
WHERE directive <> 'C' AND
dt.orderNum IN (SELECT orderNum FROM ORDER_HEADER)
This works fine when used with in the hourly transactional update. But When I ran it for the Bulk UpDate (so we'd have historical data) it allowed orders to have statuses to many times.
I am not a SQL guru, I have no idea how to write a sql statement or stored proc that will remove the duplicate records. or how to change what I have to prevent further ones.
Any help would be apreciated.
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May 10, 2004
Hello all,
A little question regarding SQL Server DB's.
I have a two tables containing customers invoices, one for the invoices header (ie: customer #, invoice date,... KEY: invoice # + invoice date) and another for the details of the invoices (ie: each invoice line details KEY: invoice # + line #). I need to periodically remove invoices older than a certain timeframe (ex: all invoices older than 48 months).
How can I proceed?
I am fairly new with SQL server.... Please help!
Thanks,
Eric
:(
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Mar 9, 2015
I have regular work that requires me to extract a bunch of customer records from our database, and then remove duplicate address destinations (so we dont mail the same address more than once).
I can currently achieve this using a combination of my poor SQL skills and Excel, but it's really not working out for me, so looking for SQL wizardry necessary to do it just in SQL.
Relevant fields:
Member.AddressBarcode (This is a unique barcode (Text representation of a base-3 number) based on the customer address. So if there's more than one record in the pulled records with the same barcode, we then look at Member.MemberTypeID to determine whether to include this record in the results or discard it as a duplicate. Note that AddressBarcode may be blank if the mailing address couldn't be validated, if it is blank we don't discard it since there is no easy way to detect duplicate addresses without the barcode)
Member.MemberTypeID (This is the type of member account. We have 3 types - Single, Joint Primary, Joint Secondary, represented in this field by the numbers 1/2/3. This is also the order of preference of who to mail. So if there is a Joint Primary and Joint Secondary with the same mailing barcode, we want to discard the Joint Secondary from the results, so that the Joint Primary is the record we include in the results of who to mail.)
Member.ID (Unique numeric ID for each customer. Kind of irrelevant here, but it's a key)
So some pseudo code for what I'm trying to achieve is:
(Member.MemberTypeID = 1)
OR (Member.MemberTypeID = 2 AND Member.AddressBarcode not in results of Member.MemberTypeID = 1)
OR (Member.MemberTypeID = 3 AND Member.AddressBarcode not in results of Member.MemberTypeID = 2 AND Member.AddressBarcode not in results of Member.MemberTypeID = 1)
I suspect it requires some sort of join...
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Mar 26, 2008
How do i eliminate records which has spaces
i tried with
select * from table
where col1 !='' or
col1 is not null
which doesn't work.. any help.
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Oct 9, 2007
hi All,
I have to remove non-useful and duplicate records containing NULL , Blanks and extra spaces (either on left or right side of the column values) etc from all the tables in my server's DB XYZ weekly thru a a scheduled job with the help of a Stored Proc, that s i guess called Purging og DB. Plz help how i can do it with T-SQL.
Also i have to find out and remove all the duplicate DB objects(tables) from the DB .e.g. a table existing with name TABLE_TEST or TABLE_DEBUG etc for an original table TABLE , making sure no any of the base table is dropped.
Plz help me reagrding these two problems.
Thanks in advance for the quick replies.
Mohit
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Jan 26, 2015
I ran this query to populate a field with random numbers but it keeps populating with some duplicate records. how I can remove the duplicates?
UPDATE APRFIL
SET ALTATH = CONVERT(int, RAND(CHECKSUM(NEWID())) * 10000);
Below are sample output that I need the dupes not show. The table already exist and its sql 2008
155957
155957
155968
155974
155976
15599
155990
155997
155997
156005
156008
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Aug 18, 2015
I wanted to remove duplicate records from SSRS report. I set the "Hide Duplicates" to True. It is now working, But i am getting the space between the two records, which i want to get rid of. How to get rid of extra spaces between two records ( Please find the details below).
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Jul 15, 2014
I need to get all customer records with the most recent tDate. A customer should never have duplicate tDate records, as only one record per day is allowed per customer, yet there somehow there are duplicates. Given this, I need to get the record with the Max date and Max ID. the ID column is an auto-incrementing Identity column.Below is the code without the Max ID column logic
SELECT tCustID, MAX(tDate) AS tDate--get MAX tDate records
FROM table1
GROUP BY tCustID
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Apr 15, 2015
Have a table that list item#, date the standard cost went into effect and the standard cost. How do I find the difference in StdCost on the last EffectiveDate and second to last EffectiveDate. 5.59 (01/05/2015) minus 5.81 (09/29/.014) = -.22.
Item#     EffectiveDate   StdCost
1152Â Â Â Â Â Â Â 01/01/2009Â Â Â Â Â 5.50
1152Â Â Â Â Â Â Â 09/29/2014Â Â Â Â Â 5.81
1152Â Â Â Â Â Â Â 04/04/2011Â Â Â Â Â 5.56
[code]....
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Sep 6, 2007
For my db connection managers the password is not being saved. I have 'remember password' checked for each connection manager, but when I close down the BIDS and open it again, I have to re-enter the password again. Even when I import the dtsx file into SQL IS, its not in the connection manager information. I have to re-enter the password again every time prior to running it,.
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Apr 7, 2007
Hello,
I need some help to solve an issue we have with SSIS, perhaps someone could help us.
We need to extract data from a remote database. We would like to use SSIS to extract data from that DB. But our actions are very restricted in that DB; we can query the DB views and create (local, global) temp tables only.
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Any ideas how to solve this problem? Any hints and recommendations are much appreciated.
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Thanks and regards,
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Dec 30, 1999
Is is possible to upgrade from 6.5 to 7.0 and have all the logins that have been granted the ability to make a trusted connection to 6.5 be created the same capability in 7.0?
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Apr 10, 2008
I have a table employee_test having the sample data. The rows with EmployeeID=6 are duplicate rows. I want to delete the duplicates retaining one row for the employeeid=6.
Note :- I don't want to use a temporary table. I want to do this using a single query or at the most in a SP query batch. Please advise.
EMPLOYEEID
ENAME
SALARY
MANAGERID
1
Anee
1000
11
2
Rick
1200
12
3
JOHN
1100
13
4
ABC
1300
14
5
DEF
1400
15
6
DEF
1400
15
6
DEF
1400
15
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Apr 12, 2007
I'm designing a database to store information about jobs that are in progress at a property. More than one job can be in progress at a property at one time and each different kind of job can contain different data, although they all share some common fields such as StartDate.
So I have a table that stores the property details PropertyDetails:
*ID
PropertyAddress
PropertyPostCode
Then I have a table that stores all of the jobs' shared details:
*PropertyID
*JobID - These three make up a compound primary key
*JobType
StartDate
EndDate
Then I have individual tables for each of the Jobs, for example BuildingWork:
*JobID
BuildingContractor
InsuranceCompany
Which works great, and enables me to query all basic job details from one table (JobDetails) rather than multiple tables for every job type.
BUT: I don't know how to enforce the referential integrity of the database. Obviously I can use a constraint to cascade deletes from the PropertyDetails table to the JobDetails table through the PropertyID, but there doesn't appear to then cascade the deletes from the JobDetails table to the individual Job tables as JobDetails has no idea what tables are there.
If I store the relevant individual table name as the JobType in the JobDetails table, could I use a trigger to somehow delete the related record from that table?
Littlecharva
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Jul 17, 2007
Dear Friends,
I want to retain the formulae defined in the Reporting Services to be retained when I export the report to Excel. I want to know the best possible way to achieve the same.
Scenario:
I have a report which has 4 Columns.Column 1 and Column 2 are fetched from Database. Column 3 is empty and Column 4 (Formulae defined using expressions) is computed with the formulae using the previous 3 Columns.
My requirement is that upon rendering of the report, I'll download the report to excel and the end user enters some values in the column 3 and based on the value entered, Column 4 Formula has to be computed. But when I download the Report to Excel, my Formulae expression is not retained.
Kindly let us know if there is any other means of doing this in reporting services itself. Else please suggest an appropriate alternative, either through third party or in any other way.
Thanks in Advance,
S Suresh
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Sep 17, 2007
Hi all,
I've developed few reports
I'm passing values to few parameters in a report from menu report.
when I click on "View Report" button values are changed to default for parameters eventhough I've not changed specifically any values for parameters. thus report is missing few parameters and not able to execute properly..
this error occurs only in web environment.. after publishing reports.. they are working fine in developer suite(Visual Studio)
please suggest any ways to overcome this issue..
seniors.. pls throw some light ..
thanks in advance
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Jul 23, 2005
HiI have been working since 2 days to device a method to export sql tableinto csv format. I have tried using bcp with format option to keep thecolumn names but I'm unable to transfer the file with column names. andalso I'm having problems on columns having decimal data.Can any one suggest me how to automate data transfer(by using SP) andretaining column names.ThanksNoor
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Aug 28, 2015
I have an SSIS package that uses an FTP connection manager. When running the package in BIDS, it runs fine and maintains the password for the remote ftp site's user account.
Once I deploy the package and attempt to run it, it fails with the following error:
Started:Â 4:06:15 PM
Error: 2015-08-27 16:06:20.09
  Code: 0xC001602A
  Source: Export and FTP New Jobs Connection manager "FTP Connection Manager"
  Description: An error occurred in the requested FTP operation. Detailed error description: The password was not allowed
End Error
Error: 2015-08-27 16:06:20.09
  Code: 0xC002918F
  Source: FTP Jobs Listing to Concur FTP Task
  Description: Unable to connect to FTP server using "FTP Connection Manager".
End Error
DTExec: The package execution returned DTSER_FAILURE (1).
I've tried Don't Save Sensitive With Password and that still fails.
Does the FTP connection manager just not retain passwords outside of BIDS?
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Dec 26, 2007
Hi,
I am looking to implement a custom event handler that will also retain the original event arguments (in addition to several custom arguments).
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I have implemented a new Event Arguments class (derived from System.EventArgs), new Event class and delegate, but do not know how to retain the SqlDataSourceEventArgs. I would really appreciate your suggestions!
Thanks!
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Nov 29, 2006
I am using BI Dev Studio for SS2005 in a research (as opposed to a production) environment. Often I want to compare the results of multiple models using the same attributes. If I switch to a different model, the Design view completely resets. Is there any way to retain the same field names with different models in the Design view?
My current workaround is to give my models similar names with AR, DT, CL, LOG, NN suffixes and make global changes in the DMX.
I have consulted the following without finding an answer:
http://msdn2.microsoft.com/en-us/library/ms178445.aspx
http://msdn2.microsoft.com/en-us/library/ms175642.aspx
http://msdn2.microsoft.com/en-us/library/ms175678.aspx
http://msdn2.microsoft.com/en-us/library/ms175637.aspx
Thanks for your help,
Sam
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Mar 20, 2014
writing the query for the following, I need to collapse the continuity. If the termdate for an ID is one day less than the effdate of the next id (for the same ID) i need to collapse the records. See below example .....how should i write the query which will give me the desired output. i.e., get min(effdate) and max(termdate) if termdate is one day less than the effdate of next record.
ID effdate termdate
556868 1999-01-01 1999-06-30
556868 1999-07-01 1999-10-31
556869 2002-10-01 2004-01-31
556872 1999-02-01 2000-08-31
556872 2000-11-01 2004-01-31
556872 2004-02-01 2004-02-29
output should be ......
ID effdate termdate
556868 1999-01-01 1999-10-31
556869 2002-10-01 2004-01-31
556872 1999-02-01 2000-08-31
556872 2000-11-01 2004-02-29
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Sep 4, 2007
I am trying to think of the easiest solution to do this.
What it is, is that I am trying to be alerted, if an account has not had its daily reports ran for x days (for example, 3 days).
I have two tables.
One is a table, with a list of AccountIDs that are to have the report done.
Another is a Log Table, which a record is inserted whenever a report has run. So, if a report has not run, it will not have a record in that table.
Here is the table setup with sample data. I am only going into basics, as the tables are used for a couple other things which are not needed for this.
Code:
Table: Reports_AccountID
ReportID | AccountID
--------------------------
5 | 1234
5 | 987
4 | 1234
3 | 1234
5 | 5677
Log: Reports_Log
LogID | ReportID | AccountID | ReportRunDate
----------------------------------------
9876 | 5 | 1234 | 9/4/2007 10:35:43 AM
9875 | 5 | 987 | 9/4/2007 10:35:43 AM
9874 | 4 | 1234 | 9/4/2007 9:05:43 AM
9873 | 3 | 1234 | 9/4/2007 9:30:17 AM
9872 | 5 | 1234 | 9/3/2007 10:35:43 AM
9871 | 5 | 987 | 9/3/2007 10:35:43 AM
9870 | 4 | 1234 | 9/3/2007 9:05:43 AM
9869 | 3 | 1234 | 9/3/2007 9:30:17 AM
9868 | 5 | 1234 | 9/2/2007 10:35:43 AM
9867 | 5 | 987 | 9/2/2007 10:35:43 AM
9866 | 5 | 5677 | 9/2/2007 10:35:43 AM
9865 | 4 | 1234 | 9/2/2007 9:05:43 AM
9864 | 3 | 1234 | 9/2/2007 9:30:17 AM
so if i wanted to know what report for reportID 5 hasn't run in the past 2 days, it would be accountID of 5677 (last ran on 9/2/2007 10:35:43 AM)
I am not sure where to even start. I am thinking I can grab the latest report ran for all Accounts in the Reports_AccountID table (create temp table and insert most recent log record into that table), and do a date difference between the date and current datetime and select based on datedifference > 2 ?
or would the best way is to do an inner join between the 2 tables for all reports ran in the past 2 days, and then whatever account is not listed in that query, is a report that has not run (do a subquery?)
just trying to think of the best way to do this. any tips/advice would be appreciated
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