Duplicates Using MAX Date Self-Join
Feb 6, 2014
Got a data set like this:
rowID PersonID Start Date End Date
===== ======== ========== ==========
001 6575556 19/06/2013 09/07/2013
001 6575556 20/06/2013 12/07/2013
001 6575556 21/06/2013 12/07/2013
002 9478522 15/05/2013 18/05/2013
003 7753423 22/08/2013 01/09/2013
Person can have more than one start/end date therefore I get multiple of the same row ID and Person ID when looking at their dates.
I want to display the most recent end date and associated data if there is more than one start/end date for the same person. I decided to do a self join with max Date aggregate using this against a main select from the Table1:
SELECT PersonID,
MAX([End Date]) AS MaxEndDate
FROM Table1
GROUP BY
PersonID
And join it this way:
select RowID,
PersonID,
[End Date]
FROM Table1 INNER JOIN (
SELECT PersonID,
MAX([End Date]) AS MaxEndDate
[Code] ....
When I run the sub-query on its own it gives me the single PersonID and Max Date but on self-joining with Table1 I still get the duplicates values.
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Oct 22, 2004
Can some kind person out there please help me, I've been stuck on this for daaaa-y-s.
I have a database that allows users to search for pdf's of technical drawings.
Basically I have one huge table with multiple columns, which the user can only search on any combination of one of these two columns
"drawing_series" eg 0100, 0046, 1000
"drawing_number" eg 0076000, 0000123, 0000004
There is also a Revision column(which the user can't see) that goes up by 1 each time a drawing has been modified and resubmitted to the database.
"revision" eg 01, 02, 03, ....... 99
So a search on 0046 series might pull back drawings
0046-0010000-01
0046-0010000-02
0046-0010000-03
0046-0076000-01
0046-0076888-01
0046-0076888-02
The problem is that I only want drawings with the highest revisions returned eg
0046-0010000-03
0046-0076000-01
0046-0076888-02
The code below worked like a charm in the test stages pulling back a few hundred records but now that i've uploaded 10's of thousands of records to the DB the whole lot dies if the search result pulls back more than a few thousand records.
SELECT * FROM dbo.Drawing_Database
where dbo.Drawing_Database.revision=(select max(revision) from dbo.Drawing_Database self where self.drawing_series + self.drawing_number = dbo.Drawing_Database.drawing_series + dbo.Drawing_Database.drawing_number) Drawing_Series like '0046' order by Drawing_Series, Drawing_Number
There must be a simpler way of doing this as i can pull out duplicate series + numbers using " HAVING Count(*)>1" but dont know where to go from there.
Help!
TheMaster
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Jul 23, 2005
Hi All,I am banging my head against a brick wall over this problem, so anyhelp in the correct direction would be muchly appreciated!I have 2 SQL (MS SQL) server tables, realated to -a Property,Sales of that property.A property is uniquely identifed by its Roll, valuation Number andSuffix (not my choosing).Each property can only appear in the property table once, and can onlyhave 1 assessment - but can have multiple sales (ie - over theannalysis period the same property can sell more than once).There is approximatly 19000 properties relating to about 8000 sales.When creating a query to list property and most recent sale (if thereis any) I end up with somthing like this -SELECT [roll], [valuation], [suffix], [sale date]FROM [property]LEFT JOIN [sales]ON[property].[roll] = [sales].[roll] AND[property].[valuation] = [sales].[valuation] AND[property].[suffix] = [sales].[suffix](table names simplifed).I get rows where there is all the property data there, but sale date(etc.) is null (as I would expect from a left join), but the problem is- when there is more than 1 sale for a property it pulls out anothercopy of the property data.In short, because of that I come out with more records than properties.ie -roll valuation suffix sale date12 456789 A 1/1/200312 788988 B NULL14 123456 A 1/1/200314 123456 A 1/1/2004(Note - the last two are the same property).I didn't know that the left join can affect both joined tables!Is there any way around this? Any suggestions/hints in the rightdirection would be very much appreciated!THANKS!
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Jul 20, 2005
When I run the attached query, I get duplicates when there is one tomany relationship between tableA and tableB. The query, tested schemaand the result is attached. Sorry for the long post.Here is tested Schema and Data inserts.----------------------create table TestTblA(ShipDate datetime,CPEID varchar(30),phonenum char(14))gocreate table TestTblB(CPEID varchar(30),itemID varchar(30),active char(1))gocreate table TestTblC(itemID varchar(30),descr varchar(50))goinsert into TestTblA values (getdate(),'TWMUA','(408)-555-1211')insert into TestTblA values (getdate(),'TWMUA','(408)-555-1212')insert into TestTblA values (getdate(),'TWMUB','(408)-555-1211')insert into TestTblA values (getdate(),'TWMUB','(408)-555-1212')insert into TestTblA values (getdate(),'TWMUB','(408)-555-1213')insert into TestTblA values (getdate(),'TWMUC','(408)-555-1211')insert into TestTblA values (getdate(),'TWMUC','(408)-555-1212')insert into TestTblA values (getdate(),'TWMUC','(408)-555-1213')insert into TestTblA values (getdate(),'WWEXI','(408)-555-1211')insert into TestTblA values (getdate(),'WWEXI','(408)-555-1212')insert into TestTblA values (getdate(),'WWEXI','(408)-555-1211')insert into TestTblB values ('TWMUA','1000-000043-000','Y')insert into TestTblB values ('TWMUB','1000-100002-001','Y')insert into TestTblB values ('TWMUC','1000-200005-000','Y')insert into TestTblB values ('WWEXI','1000-401001-000','Y')insert into TestTblB values ('WWEXI','1000-401002-000','Y')insert into TestTblC values ('1000-000043-000','descrUA')insert into TestTblC values ('1000-100002-001','descrUB')insert into TestTblC values ('1000-200005-000','descrUC')insert into TestTblC values ('1000-401001-000','descrWW')insert into TestTblC values ('1000-401002-000','descrWW')----------------Query follows------------SELECT A.ShipDate,A.CPEId,ItemId = CASEWHEN A.CPEId = 'TWMUA' THEN 'New - Single User'WHEN A.CPEID = 'TWMUB' THEN 'New - Multi User'WHEN A.CPEID = 'TWMUC' THEN 'New - Triple User'When B.ITEMID is NULL THEN 'Unknown'When B.ITEMID = ' ' THEN 'Unknown'else B.ItemIdend,MODEL_NO = CaseWhen B.ITEMID = '1000-000043-000' Then rtrim(C.DESCR)When B.ITEMID = '1000-100002-001' Then rtrim(C.DESCR)When B.ITEMID = '1000-200005-000' Then rtrim(C.DESCR)WHEN A.CPEId = 'TWMUA' THEN '1100'WHEN A.CPEID = 'TWMUB' THEN '1100'WHEN A.CPEID = 'TWMUC' THEN '1000SW'When C.DESCR is NULL THEN 'Unknown'else 'Unknown'end ,COUNT(A.phonenum)FROM TestTblA A LEFT OUTER JOIN TestTblB B ON A.CPEID=B.CPEID andb.active = 'Y'LEFT OUTER JOIN TestTblC C ON B.ItemId=C.ITEMIDGROUP BY A.ShipDate,A.CPEId,B.ItemId,C.DESCRORDER BY A.ShipDate,A.CPEId,B.ItemId,C.DESCR---- end of queryThe result (modified the output format to fit a single line)ShipDate CPEId ItemId MODEL_NO Count2003-07-18 TWMUA New - Single User descrUA 22003-07-18 TWMUB New - Multi User descrUB 32003-07-18 TWMUC New - Triple User descrUC 32003-07-18 WWEXI 1000-401001-000 NULL 32003-07-18 WWEXI 1000-401002-000 NULL 3** The problem **I need WWEXI or any similar entry to only show once, it shows twice.Thanks for your help.
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Sep 2, 2004
I really must be missing something here...
Trying to cross-update 2 tables.
Picture a checkbook reconcilliation without common check numbers. The checkbook has uniqueids and the bank has transaction ids but they are different. So the match is on date/payee and amount. So I wrote 2 checks to the same person, on the same day, for the same amount but forgot to enter one in the register.
when i run the update statement:
update b set b.bankid=c.myid
from checks c
join bank b on c.cdate=b.cdate
and c.payee=b.payee
and c.cost=b.cost
Both bank statement records would be updated to my one check record [can't happen]
Also: this will be running on a hundred thousand records per month with potential for duplication/ommission on either side.
What's a poor newbie missing??
I'm doing something similar on a lesser volume by running sequential statements through an ASP script but performance is poor. I know SQL can do this, just not how to approach it.
Thanks for any guidance
Dale
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Jun 8, 2015
I am doing some audit and i have below query, how can i get rid of duplicates from the below query any T SQL to get rid of duplicates...
I am using SP_Who2 and sql server Audit for auditing all data happening on sql server databases and dumping them to tables Audit_DBAudit abd Audit_sp_who2 and from then i am trying to get data which is not repeating/duplicate ...
SELECT
A.ProgramName
,a.HostName,[Server_principal_name],[Server_instance_name],[Database_name],[Object_name],F.Statement
FROM Audit_DBAudit as F
Join [Audit_sp_who2] AS a
on LTRIM(RTRIM(F.server_principal_name))=LTRIM(RTRIM(A.Login))
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Aug 12, 2014
join three tables and wont be duplicate records.
I have tried and attached the computed results and also expecting results.
IF OBJECT_ID('tempdb..#tmpExam1')IS NOT NULL DROP TABLE #tmpExam1
IF OBJECT_ID('tempdb..#tmpExam2')IS NOT NULL DROP TABLE #tmpExam2
IF OBJECT_ID('tempdb..#tmpExam3')IS NOT NULL DROP TABLE #tmpExam3
[Code]....
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Mar 9, 2015
I have this statement:
SELECT top 100 P.LastName ,
P.FirstName,
P.MiddleName,
P.PractitionerTypeID,
P.SuffixID,
A.Linenumber1,
A.LineNumber2,
Z.City,
[code]....
Seems like no matter which join type I choose i still get duplicates.
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Aug 3, 2006
I am writing a script to create a audit trigger on any table. I am getting duplicate rows inserted into my audit table, only for the primary key columns. Anybody see why?
Right now I am debugging an Insert, so I think you can ignore the "U" update part of the Where clause.
....starts with other code to determine columns and primary key fields for selected table....
--get number of columns
select
@rowId = min(RowId),
@MaxRowId = max(RowId)
from #tblFieldNames
-- Loop through fields and build Sql string
while @RowId <= @MaxRowId
BEGIN
SELECT @fieldname = colName FROM #tblFieldNames WHERE RowId = @RowId
SELECT @sql = 'insert tblAuditAdmin (TableAltered, [Action], FieldName, OldValue, NewValue, UpdateDate, UpdateNumber, UserName)'
SELECT @sql = @sql + ' select distinct''' + @TableName + ''''
SELECT @sql = @sql + ',''' + @TriggerType + ''''
SELECT @sql = @sql + ',''' + @fieldname + ''''
SELECT @sql = @sql + ',convert(varchar(1000),d.' + @fieldname + ')'
SELECT @sql = @sql + ',convert(varchar(1000),i.' + @fieldname + ')'
SELECT @sql = @sql + ',''' + @UpdateDate + ''''
SELECT @sql = @sql + ', 1'
SELECT @sql = @sql + ',''' + @UserName + ''''
SELECT @sql = @sql + ' FROM #ins i FULL OUTER JOIN #del d'
SELECT @sql = @sql + @pkJoinClause
SELECT @sql = @sql + ' WHERE (''' + @TriggerType + ''' = ''I'')'
SELECT @sql = @sql + ' OR (''' + @TriggerType + ''' = ''D'')'
SELECT @sql = @sql + ' OR (''' + @TriggerType + ''' = ''U'' AND '
SELECT @sql = @sql + '((i.' + @fieldname + ' <> d.' + @fieldname + ')'
SELECT @sql = @sql + ' OR (''' + @fieldname + ''' in (Select colName from #primaryKeyFields))'
SELECT @sql = @sql + ' OR (i.' + @fieldname + ' IS NULL AND d.' + @fieldname + ' is NOT null)'
SELECT @sql = @sql + ' OR (i.' + @fieldname + ' IS NOT NULL AND d.' + @fieldname + ' is null)))'
EXEC (@sql)
set @RowId = @RowId + 1
END
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Sep 9, 2004
Hello All,
We all were new at one point.... any help is appreciated.
Objective:
Combining two 49,000 row tables and remove records where there is only 1 column difference. (keeping the specified column value removing the one with a blank.)
Reason:
I have 2 people going through a list, coding a specific column with a single letter value. They both have different progress on each sheet. Hence I am trying to UNION them and have a result of their combined efforts without duplicates.
My progress/where I'm stuck:
Here is my first query/union:
SELECT * FROM [Eds table]
UNION SELECT * FROM [Vickis table];
As shown above, I have unioned these 2 tables and my results removed th obvious whole record duplicates, but since 1 column is different on these, a union without criteria considers them unique.....
an example of duplicates that I must remove are as follows:
142301 - Product 5000 - 150# - S (Keep)
142031 - Product 5000 - 150# - "" <--- Blank (Remove)
I am trying to run another query on my first query results so I don't mess my first query up. Here it is:
SELECT DISTINCT [Prod #], [Prod Name], [Prod Description], [Product Type]
FROM [Combined Tables]
WHERE [Product Type]<>" ";
Please Help! Thank you in advance.
--------------------
5 minutes away from pulling my last one!
BaldNAskewed
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Jun 4, 2014
I have table like this and I need to remove the duplicates selecting the Min Date
IDDate Alloc ProdWater Tub Cas
3752011-10-10 00:00:00.00000014.70
3752011-10-11 00:00:00.00000014.70
3232014-04-24 00:00:00.000000352555.7
3232014-04-26 00:00:00.000000352555.7
3562014-04-01 00:00:00.000000318.8471.1
3562014-04-02 00:00:00.000000318.8471.1
3562014-04-03 00:00:00.000000318.8471.1
3562014-04-04 00:00:00.000000318.8471.1
3232014-05-20 00:00:00.000000649.1976.9
3232014-05-21 00:00:00.000000649.1976.9
3232014-05-22 00:00:00.000000649.1976.9
I would like my result set to be like this:
3752011-10-10 00:00:00.00000014.70
3232014-04-24 00:00:00.000000352555.7
3562014-04-01 00:00:00.000000318.8471.1
3232014-05-20 00:00:00.000000649.1976.9
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Jun 29, 2006
I have a db that has duplicate customer records.
If I run the following select statment against the appropriate table it returns the duplilcate records in the result set. However, from this list I want to add an additional select statement embedded into the query that will actually return only those records with the most current syscreated date.
Example of script I'm using---
select cmp_fadd1, syscreated, cmp_name, cmp_code
from cicmpy
where cmp_fadd1 in (select cmp_fadd1
from cicmpy
group by cmp_fadd1
having count(1) = 2)
order by cmp_fadd1,syscreated desc
The results is:
Address Syscreated date Customer
1622 ONTARIO AVENUE 2005-06-15 22:19:45.000 RELIABLE PARTSLTD
1622 ONTARIO AVENUE 2004-01-22 18:10:05.000 RELIABLE PARTS LTD
PEI CENTER 2006-01-05 22:03:50.000 P.G. ENERGY
PEI CENTER 2004-01-22 17:57:56.000 P.G. ENERGY
From this I want to be able to select ONLY those records with the most current syscreated date or those records with 2005-06-15 and 2006-01-05
Can anyone help me with creating this?
Thanks
Cyndie
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Oct 22, 2014
I have a table with 22 million Business records. I can see that there are duplicates when I group by BusinessName and Address and Phone. I'd like to place only the duplicates into a table, with a ranking, oldest business key gets a ranking of 1.
As a bonus I'd like each group to have a distinct group name (although not necessary, just want to know how to do this)
Later after I run more verifications to make sure these are not referenced elsewhere I'll delete everything with a matchRank > 1 out of the main Business table.
DROP TABLE [dbo].[TestBusiness];
GO
CREATE TABLE [dbo].[TestBusiness](
[Business_pk] INT IDENTITY(1,1) NOT NULL,
[BusinessName] VARCHAR (200) NOT NULL,
[Address] VARCHAR(MAX) NOT NULL,
[code]....
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Jul 27, 2015
We are trying to do some utilization calculations that need to factor in a given number of holiday hours per month.
I have a date dimension table (dimdate). Has a row for every day of every year (2006-2015)
I have a work entry fact table (timedetail). Has a row for every work entry. Each row has a worked date, and this column has a relationship to dimdate.
Our holidays fluctuate, and we offer floating holidays that our staff get to pick. So we cannot hard code which individual dates in dimdate as holidays. So what we have done is added a column to our dimdate table called HolidayHoursPerMonth.
This column will list the number of holiday hours available in the given month that the individual date happens to fall within, thus there are a lot of duplicates. Below is a brief example of dimdate. In the example below, there are 0 holiday hours for the month of June, and their are 8 holiday hours for the month of July.
DateKey MonthNumber HolidayHoursPerMonth
6/29/2015 6 0
6/30/2015 6 0
7/1/2015 7 8
7/2/2015 7 8
I have a pivot table create based of the fact table. I then have various date slicers from the dimension table (i.e. year, month). If I simply drag this column into the pivot table and summarize by MAX it works when you are sliced on a single month, but breaks if anything but a single month is sliced on.
I am trying to create a measure that calculates the amount of holiday hours based on the what's sliced, but only using a single value for each month. For example July should just be 8, not 8 x #of days in the month.
Listed below is how many hours per month. So if you were to slice on an entire year, the measure should equal 64. If you sliced on Jan, Feb and March, the measure should equal 12. If you were to slice nothing, thus including all 15 years in our dimdate table, the measure should equal 640 (10 years x 64 hours per year).
MonthNumberOfYear HolidayHoursPerMonth
1 8
2 4
3 0
4 0
5 8
6 0
7 8
8 0
9 8
10 4
11 16
12 8
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Jan 26, 2015
Is there a query or a way to convert duplicates value in a column to non duplicates.
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Apr 25, 2007
I have a query that is the initial part of a stored procedure; the results are put in a temporary table that will be used by several other operations. I'm trying to consolidate some of these, possibly getting the whole thing down to one query. One of steps I'm trying to consolidate results in a join that looks like this (where c is a table alias created previously):
Code:
LEFT JOIN proccode_t pc ON pc.proccode=c.proccode
AND (pc.effectivedate<=c.dateofservice OR pc.effectivedate IS NULL)
I don't have any influence over the schema in this database, I can only write select queries. Things are set up such that proccode_t will have several records for any given proccode, each with a different effectivedate. The oldest/original effectivedate is often NULL. This means my join up there often matches up with several records in proccode_t, when I only ever want to match the one most recent and occasionally not match anything at all.
I know a few ways to accomplish this (as covered in another recent thread here), but none of them seem to match well to this situation. A sub query that uses TOP 1 ORDER BY effectivedate DESC would almost cover it, but if the query returns NULL that might or might not mean it matched the NULL effectivedate for that proccode. It's also kinda slow.
The proccoce_t table does contain another field to tell you which of the codes is currently effective aside from just using the date, and that would be the normal way to do this here. However, this procedure is for auditing old data and therefore the currently effective proccode may not be the one I'm concerned with.
Any thoughts?
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Jun 2, 2008
Hello,
I have been having a hard time with this issue. I am attempting to join a table onto itself to get the closest date onto a single row.
What i mean is:
I have the following data
id date
1 10/07/08
2 10/06/07
3 10/06/03
4 10/06/03
the new table should have the current id and the one closes to it as so.
1 10/07/08 2 10/06/07
2 10/06/07 3 10/06/03
3 10/06/03 null null
4 10/06/03 null null
but i am getting duplicates do to the 10/06/03.
1 10/07/08 2 10/06/07
2 10/06/07 3 10/06/03
2 10/06/07 4 10/06/03
3 10/06/03 null null
4 10/06/03 null null
i want so that if there is a duplicate i can take the id thats higher. I cant figure it out.
This is my current sql:
SELECT PB.ID,PB.StartDate, PB2.ID, PB2.Startdate
from table PB
left outer join table PB2 on PB.keyID = PB2.keyID
and PB2.StartDate < PB.StartDate
and PB.StartDate = (select top(1) StartDate from table PB3 where PB.keyID = PB3.keyID
and PB2.StartDate < PB3.StartDate order by PB3.StartDate asc)
Thanks for the help.
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Oct 24, 2013
I'm using SQL Dev 2.1 and i want to find the latest date and also joining tables. My query is below:-
I want to get the latest DEBT_COLLECTION_STEPS_V.TRANSACTION_DATE
As there are more that one date relating to the same invoice number but different comments posted against the DEBT_COLLECTION_STEPS_V.DESCRIPTION.
SELECT AR_INVOICE_INQ_V.CLIENT CLIENT,
AR_INVOICE_INQ_V.CLI_NAME CLI_NAME,
AR_INVOICE_INQ_V.PARTNER PARTNER,
AR_INVOICE_INQ_V.PAR_NAME PAR_NAME,
AR_INVOICE_INQ_V.MANAGER MANAGER,
[Code] ....
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Jul 20, 2005
{CREATE TABLEs and INSERTs follow...}Gents,I have a main table that is in ONE-MANY with many other tables. For example, ifthe main table is named A, there are these realtionships:A-->BA-->CA-->DA-->EWith one field in Common (Person). The tables B, C, D and E are History tables,with Start and End dates. Each person has a Program history (table B, ie), anExperience history (table C, ie), and so on...many differernt types ofhistories, and it may grow from here....table F, G, etc.The included CREATE TABLEs and INSERTs contain tables A, B and C.The problem: Each tblCase (table A) record has a date. When joining all of thehistory tables to tblCase on Person, obviously you get a cross-product of eachhistory unless you specify a WHERE clause that extracts one single record fromeach of the histories (duh...that's the point...to extract a single record fromeach history, because there can only be one value in effect at the time of theCase.)QUESTION: From a performance standpoint, would it behoove me to maintain thesurrogate ***HistoryID from each history table in tblCase, or, assuming theindexes are set up properly, would a WHERE condition for each history besufficient? For example, the following select works as expected:SELECT CasePerson, CaseDate, ProCode, ExpYearFROM tblExperienceHistory INNER JOIN (tblCase INNER JOIN tblProgramHistory ONtblCase.CasePerson = tblProgramHistory.ProPerson) ON tblCase.CasePerson =tblExperienceHistory.ExpPersonWHERE CaseDate BETWEEN ProStartDate and ProEndDateAND CaseDate BETWEEN ExpStartDate and ExpEndDateIt extracts the single record from each history for each person for each case.But I'm afraid of performace with such a scenario.Instead, I could store each ***HistoryID in the table tblCase, and then justjoin on that...no WHERE needed. But the trade-off is that I'd have to buildprocesses to maintain that. ("Hey, when you insert a record into tblCase, makesure to go get each HistoryID from the History tables!" or "If the user changesthe date ranges in one of histories, make sure to update tblCase to match thenew historyID!")Maybe a clustered index on each ***History table on Person/StartDate combinedwith the WHERE clause should perform as well as a real JOIN on surrogateintegers.It seems cheesey to have to resort to surrogate IDs...but the performanceincrease might be worth it. Also, if I go that route, whenever I add a newhistory table, I'd have to change the design of tblCase AND any SPs thatreference it. With the WHERE solution, I'd only have to change the SPs.Comments are welcome! (tblCase grows at 250,000 records per year; the historytables will increase about 1000 records per year)DCMFANCREATE TABLE [dbo].[tblCase] ([CaseID] [char] (5) CONSTRAINT [PK_tblCase] PRIMARY KEY CLUSTERED NOT NULL ,[CaseDate] [smalldatetime] NOT NULL ,[CasePerson] [char] (5) NOT NULL) ON [PRIMARY]GOCREATE TABLE [dbo].[tblExperienceHistory] ([ExperienceHistID] [int] IDENTITY (1, 1) NOT NULL ,[ExpPerson] [char] (5) NOT NULL ,[ExpStartDate] [smalldatetime] NOT NULL ,[ExpEndDate] [smalldatetime] NOT NULL ,[ExpYear] [int] NOT NULL) ON [PRIMARY]GOCREATE TABLE [dbo].[tblProgramHistory] ([ProgramHistID] [int] IDENTITY (1, 1) NOT NULL ,[ProPerson] [char] (5) NOT NULL ,[ProStartDate] [smalldatetime] NOT NULL ,[ProEndDate] [smalldatetime] NOT NULL ,[ProCode] [int] NOT NULL) ON [PRIMARY]GOINSERT INTO [tblCase]([CaseID], [CaseDate], [CasePerson])VALUES('12345', '3/1/03', '00000')INSERT INTO [tblCase]([CaseID], [CaseDate], [CasePerson])VALUES('A1G34', '4/23/03', '00001')INSERT INTO [tblExperienceHistory]([ExpPerson], [ExpStartDate], [ExpEndDate],[ExpYear])VALUES('00000', '1/1/03', '5/19/03', 1)INSERT INTO [tblExperienceHistory]([ExpPerson], [ExpStartDate], [ExpEndDate],[ExpYear])VALUES('00000', '5/20/03', '12/31/03', 2)INSERT INTO [tblExperienceHistory]([ExpPerson], [ExpStartDate], [ExpEndDate],[ExpYear])VALUES('00001', '4/20/03', '11/1/03', 0)INSERT INTO [tblProgramHistory]([ProPerson], [ProStartDate], [ProEndDate],[ProCode])VALUES( '00000', '2/1/03', '9/30/03', '55555')INSERT INTO [tblProgramHistory]([ProPerson], [ProStartDate], [ProEndDate],[ProCode])VALUES( '00000', '10/1/03', '5/1/04', '55555')INSERT INTO [tblProgramHistory]([ProPerson], [ProStartDate], [ProEndDate],[ProCode])VALUES( '00001', '1/1/03', '12/31/03', '55555')
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Sep 10, 2015
I have the following 2 tables:
Location:
Policy:
1 Location can be attached to many policies.
I need to create a query to get 1 row per location and get the minimum PolicyBookingDt and RowUpdateDt from the policy table. All the attributes from the Location table should also be from the Policy that has the minimum PolicyBookingDt.
So from the above example, i need to get the following:
Getting a little confused on how to create the syntax for this.
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May 23, 2001
I have two tables that I am trying to join and both have similar columns with which I am trying to use. One is Date and the other is LOGdate. Date's format is "01/01/2000" BUT LOGdate's is "01/01/2000 12:41:00 PM/AM". Can I join these two tables?
Any help would be greatly appreciated.
Thank you
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May 23, 2001
I have two tables that I am trying to join and both have similar columns with which I am trying to use. One is Date and the other is LOGdate. Date's format is "01/01/2000" BUT LOGdate's is "01/01/2000 12:41:00 PM/AM". Can I join these two tables? If yes how do I get rid of the excess time on LOGdate.
Any help would be greatly appreciated.
Thank you
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Jul 16, 2014
I have 2 tables:
Table Transaction
-----------------
EmpID TransDate
00001 1/1/2014
00001 1/2/2014
00001 1/3/2104
00001 1/4/2014
00001 1/5/2014
00001 1/6/2014
00001 1/15/2014
00001 2/1/2014
00001 2/2/2014
00001 2/20/2004 ....
Table Master
---------------------------
EmpID EffectiveDateFr Group
00001 1/1/2014 A
00001 1/5/2014 B
00001 1/9/2014 C
00001 2/1/2014 B
00001 2/20/2014 A ....
I want to create query the output should be:
EmpID TransDate Group
00001 1/1/2014 A
00001 1/2/2014 A
00001 1/3/2104 A
00001 1/4/2014 A
00001 1/5/2014 B
00001 1/6/2014 B
00001 1/15/2014 C
00001 2/1/2014 B
00001 2/2/2014 B
00001 2/20/2004 A
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Sep 14, 2015
I need to Filter Employees by Available Date and grab their Basic contact information
I used Join to Join both tables but I can't seem to find a way to only get data from employees where DateAv > SelectedDate.
I'm using this in a SqlCommand with C#.
SELECT " EmployeeNameTable.ID, EmployeeNameTable.FullName, EmployeeNameTable.DateAV,ContactTable.HomePhone, ContactTable.MobilePhone, ContactTable.Email FROM EmployeeNameTable INNER JOIN ContactTable On EmployeeNameTable.ID = ContactTable.ID OrderBy EmployeeNameTable.FullName"
This code loads all employees Successfully but it doesn't filter them by the DateAV Column which is in Date Format.
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Sep 16, 2013
I have built a sample table, query, and results for this question. I am using SQL server.
declare @TableX Table
(
Date Date not null,
ID int not null,
Tick varchar(6) not null
)
INSERT @tableX
[Code] ....
Expected results:
DATE(No column name)count
2013-09-02LON1
2013-09-03LON1
2013-09-04LON1
2013-09-05LON1
2013-09-06LON1
2013-09-02USA2
2013-09-03USA2
2013-09-04USA2
2013-09-05USA2
2013-09-06USA2
I want to select unique country - date pairs. It is not even necessary to have the count of each one, just the list of unique country/dates.
My query here uses 'group by' to accomplish this task, but there may be a way to do this with a self join. I believe using a self join would make the query faster.
1) Is this possible to do with a self join?
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Apr 30, 2008
Hello
Can any one tell me the difference between Cross Join, inner join and outer join in laymans language
by just taking examples of two tables such as Customers and Customer Addresses
Thank You
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May 22, 2015
I have two xml source and i need only left restricted data.
how can i perform left restricted join?
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Oct 8, 2015
I was writing a query using both left outer join and inner join. And the query was ....
SELECT
S.companyname AS supplier, S.country,P.productid, P.productname, P.unitprice,C.categoryname
FROM
Production.Suppliers AS S LEFT OUTER JOIN
(Production.Products AS P
INNER JOIN Production.Categories AS C
[code]....
However ,the result that i got was correct.But when i did the same query using the left outer join in both the cases
i.e..
SELECT
S.companyname AS supplier, S.country,P.productid, P.productname, P.unitprice,C.categoryname
FROM
Production.Suppliers AS S LEFT OUTER JOIN
(Production.Products AS P
LEFT OUTER JOIN Production.Categories AS C
ON C.categoryid = P.categoryid)
ON
S.supplierid = P.supplierid
WHERE
S.country = N'Japan';
The result i got was same,i.e
supplier country productid productname unitprice categorynameSupplier QOVFD Japan 9 Product AOZBW 97.00 Meat/PoultrySupplier QOVFD Japan 10 Product YHXGE 31.00 SeafoodSupplier QOVFD Japan 74 Product BKAZJ 10.00 ProduceSupplier QWUSF Japan 13 Product POXFU 6.00 SeafoodSupplier QWUSF Japan 14 Product PWCJB 23.25 ProduceSupplier QWUSF Japan 15 Product KSZOI 15.50 CondimentsSupplier XYZ Japan NULL NULL NULL NULLSupplier XYZ Japan NULL NULL NULL NULL
and this time also i got the same result.My question is that is there any specific reason to use inner join when join the third table and not the left outer join.
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Dec 23, 2014
I have two select statements, in between select statement taking UNION ALL . I need to avoid the error
Warning: The join order has been enforced because a local join hint is used.
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Aug 10, 2007
Scenario:
OLEDB source 1
SELECT ...
,[MANUAL DCD ID] <-- this column set to sort order = 1
...
FROM [dbo].[XLSDCI] ORDER BY [MANUAL DCD ID] ASC
OLEDB source 2
SELECT ...
,[Bo Tkt Num] <-- this column set to sort order = 1
...
FROM ....[dbo].[FFFenics] ORDER BY [Bo Tkt Num] ASC
These two tasks are followed immediately by a MERGE JOIN
All columns in source1 are ticked, all column in source2 are ticked, join key is shown above.
join type is left outer join (source 1 -> source 2)
result of source1 (..dcd column)
...
4-400-8000119
4-400-8000120
4-400-8000121
4-400-8000122 <--row not joining
4-400-8000123
4-400-8000124
...
result of source2 (..tkt num column)
...
4-400-1000118
4-400-1000119
4-400-1000120
4-400-1000121
4-400-1000122 <--row not joining
4-400-1000123
4-400-1000124
4-400-1000125
...
All other rows are joining as expected.
Why is it failing for this one row?
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Sep 21, 2006
HiI am using SQL 2005, VB 2005I am trying to insert a record using parameters using the following code as per MotLey suggestion and it works finestring insertSQL; insertSQL = "INSERT INTO Issue(ProjectID, TypeofEntryID, PriorityID ,Title, Area) VALUES (@ProjectID, @TypeofEntryID, @PriorityID ,@Title, @Area)"; cmdInsert SqlCommand; cmdInsert=new SqlCommand(insertSQL,conn); cmdInsert.Parameters.Add("@ProjectID",SqlDbType.Varchar).Value=ProjectID.Text; My query is how to detail with dates my previous code wasinsertSQL += "convert(datetime,'" + DateTime.Now.ToString("dd/MM/yy") + "',3), '";I tried the code below but the record doesn't save?string date = DateTime.Now.ToString("dd/MM/yy"); insertSQL = "INSERT INTO WorkFlow(IssueID, TaskID, TaskDone, Date ,StaffID) VALUES (@IDIssue, @IDTask, @TaskDone, convert(DateTime,@Date,3),@IDStaff)"; cmdInsert.Parameters.Add("IDIssue", SqlDbType.Int).Value = IDIssue.ToString();cmdInsert.Parameters.Add("IDTask",SqlDbType.Int).Value = IDTask.Text;cmdInsert.Parameters.Add("TaskDone",SqlDbType.VarChar).Value = TaskDoneTxtbox.Text;cmdInsert.Parameters.Add("Date",SqlDbType.DateTime).Value = date;cmdInsert.Parameters.Add("IDStaff",SqlDbType.Int).Value = IDStaff.Text;Could someone point to me in the right direction?Thanks in advance
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Apr 14, 2015
I'm having trouble with a multi-table JOIN statement with more than one JOIN statement.
For each order, I need to return the following: CarsID, CarModelName, MakeID, OrderDate, ProductName, Total ordered the Car Category.
The carid (primary key) and carmodelname belong to the Cars table.
The makeid and orderdate belong to the OrderDetails table.
The productname and carcategory belong to the Product table.
The number of rows returned should be the same as the number of rows in OrderDetails.
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Aug 9, 2013
Why would I use a left join instead of a inner join when the columns entered within the SELECT command determine what is displayed from the query results?
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