Selecting Most Recent Record
Jul 20, 2005
MSSQL2000
I have a table that contains customer transactions
CustomerID
Transaction
TransactionDate
....
I need to select the most recent record that matches a specific CustomerID.
I am fairly new to SQL, could someone provide a sample select statement.
TIA
Tim Morrison
--
Tim Morrison
--------------------------------------------------------------------------------
Vehicle Web Studio - The easiest way to create and maintain your vehicle related website.
http://www.vehiclewebstudio.com
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Mar 31, 2008
Hi guys,
I am having a problem in outputting the last two dates that a bill has been sent out.
Background:
A customers recieves a bill 4 times a year. The dates for issuing these bills are not fixed and I dont know the date that bills are usually sent out.
The database that I am using stores all of the dates that a bill would have been sent out.
Issue:
A customer recently requested to see the dates of last 2 bills along with their value.
I know that you can view a customer last date by using the following statement.
Select max(issuedate)LastBill
from statements
but i don't know how i could output the last 2 bills that were issued
Any ideas....??
Velvet.
I know that in order to select the
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Jan 8, 2008
I need to select the most recent price for an item from this table where certain criteria are met:
flexing_stock_transactions
--------------------------
item date price status week firm_or_commission
---- -------- ----- ----- ---- ------------------
CH 10/05/07 200 2 35 F
AL 10/05/07 195 1 35 C
CH 10/05/07 209 1 35 F
CH 11/05/07 210 1 35 C
I am currently using:
SELECT
price, date
FROM flexing_stock_transactions
WHERE (
[date] = (SELECT MAX([date]) FROM flexing_stock_transactions)
AND item = 'CH'
AND status = '1'
AND week = '35'
AND firm_or_commission = 'F'
)
zero rows are returned wheras I was expecting:
209, 10/05/07
I'm using MS Server 2005
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Apr 23, 2008
Could anybody help me with the following scenario:
Table 1 Table2
ID,Date1 ID, Date2
I would like to link the two tables and receive all records from table2 joined on ID and the record from table1 that has the most recent date.
Example:
Table1 data Table2 Data
ID Date1 ID Date2
31 1/1/2008 31 1/5/2008
34 1/4/3008 31 4/1/2008
31 3/2/2008
The first record in table2 would only link to the first record in table1
The second record in table2 would only link to the third record in table1
Any help would be greatly appreciated.
Thanks
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May 4, 2008
I know how to select the most recent row from a database:
SELECT TOP (1) Location, Date FROM Images ORDER BY Date DESC
But how do I select the second to most recent? or the third most recent? or the 4th, ect, ect, ect.
There must be some method to it, anyone have any suggestions?
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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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May 25, 2014
I have a DB with the fields: Id, Date, Name, Status.
Now I want to select all distinct names with the most recent corresponding status.
With the SELECT DISTINCT Name, I get only one record per different name which is ok.
Now I want to add next to each different name, the most recent added status.
Can I combine those 2 in 1 query? I want to show them using PHP on a website.
Now I get a table with a row for each different name, but I can't add a second column where the most recent Status is showed for that name.
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Oct 19, 2007
I'm trying to determine the oldest timestamp that meets given criteria which includes a specific action_type code. That code can legitimately be performed more than once on an item (all actions are recorded in an actions table, so the full history is available).
actions table (columns: action_id, request_id, action_type, action_time, action_reason)
I'm having trouble getting the most recent timestamp for the given action_type I'm looking for, when that action_type has been performed more than once.
My intent with the query below is to get the most recent action_time and it's request_id that meets the criteria
SELECT TOP 1 a.action_time, r.request_id FROM requests r JOIN incident i ON r.request_id = i.request_id LEFT JOIN actions a ON r.request_id = a.request_id WHERE i.refund_type = 1 AND (r.status_code = 3 OR r.status_code = 14) AND a.action_type = 3 ORDER BY a.action_time
So for example, if the item with request_id 1334 has had action_type 3 performed on it twice, once at 2007-10-15 13:30:00 and then again at 2007-10-17 14:40:00, it's picking up the former, when I want the later. That it had action_type 3 performed on it twice is legitimate. (larger context an item was approved by a manager, then rejected by a processor, and then approved by a manager again after resubmission)
Hopefully this has made sense so far.
So, how do I make sure I'm getting the most recent action time, when I don't know if the item in particular will have more than one of this action type performed on it?
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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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Nov 13, 2007
Please concider the line of code below. it doesnt quite work how i want it to. i need it to only pull records where there isnt any activity completed (actualend) after a given period. and only show the most recent activity per regardingobjecid(sales person) however it returns all the records before that period and shows me the most recent one up to that time. Please help.
here is the code
SELECT new_ratingname, regardingobjectidname, actualend, owneridname, createdbyname, activitytypecodename, count(*) AS Total
FROM (SELECT filteredcontact.new_ratingname, filteredactivitypointer.regardingobjectidname, filteredactivitypointer.actualend,
filteredactivitypointer.Owneridname, filteredactivitypointer.createdbyname, filteredactivitypointer.activitytypecodename, row_number()
OVER (Partition BY regardingobjectid
ORDER BY actualend DESC) AS recid
FROM FilteredActivityPointer INNER JOIN
FilteredContact ON FilteredContact.contactid = FilteredActivityPointer.regardingobjectid
WHERE new_ratingname NOT IN ('dead', 'archive', 'continous updates') AND filteredactivitypointer.statecodename = 'completed' AND
filteredactivitypointer.owneridname IN (@user) AND filteredactivitypointer.createdbyname NOT IN ('melvin felicien', 'suzette collymore', 'gasper ') AND
filteredactivitypointer.activitytypecodename IN ('phone call', 'e-mail', 'fax') AND filteredactivitypointer.actualend <= dateadd(d,
- CAST(@NeglectedDays AS INT), GetUTCDate())) AS d
WHERE recid = 1
GROUP BY d .actualend, d .regardingobjectidname, d .owneridname, d .createdbyname, d .activitytypecodename, new_ratingname
ORDER BY d .actualend
Compnetsyslc
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Dec 21, 2006
Every hour we capture some values from our factory (position of pumps, valves, ...) in our sql server 2000 db.
Normally 1 record is added to the db.
00:00:00
01:00:00
02:00:00
...
21:00:00
22:00:00
23:00:00
All of these values are displayed in an Excel sheet. One sheet contains all the data from one month.
I noticed a problem last week when 2 records were added: first one at 19:00:00 and the second one at 19:00:01
We only want to keep the most recent record (19:00:01) in a situation like this but I can't seem to work out an SQL-statement :o
This is what we have know. It used to work fine untill we had 2 record being added instead of one.
SELECT TimeOfCapture, Value1, Value2, Value3
FROM FactoryTable
WHERE (MONTH(TimeOfCapture) = MONTH(GETDATE())) AND (YEAR(TimeOfCapture) = YEAR(GETDATE()))
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Apr 27, 2004
Hi,
I want to construct a query that would give the most recent record. Table data looks like -
F1F2F3 F4
20016395074/7/2004 15:40:55
23516395074/6/2004 9:31:54
All columns are strings as the data is obtained from text file. Column F3 can have same or different dates. In the above data select 1st record as it is the most recent.
If data is like -
F1F2F3 F4
20016395074/7/2004 15:40:55
23516395074/7/2004 19:31:54
Select the 2nd record.
How do I construct the SQL query?
Let me know.
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Jun 16, 2015
Here's the scenario. Consider the following sample data.
CREATE TABLE #MyTest
(
CustomerNumber INT,
Division CHAR,
SalesRepType INT,
SalesRepNumber INT,
EnterDate DATE
[code]....
Essentially, what I’m attempting to do is for each Customer, Division, SalesRepType determine who the most recent assigned SalesRepNumber is and when (EnterDate) that person was assigned. So using the sample data, I would expect the following results.
CustomerNumberDivisionSalesRepTypeSalesRepNumberAssignedDate
10000A11002/1/2015
10000A23001/28/2015
10000B14002/1/2015
10000B26002/2/2015
I’ve tried various ways of using a CTE and ROW_NUMBER trying to get at this, but the area that is giving me the problem is in Division A, SalesRepType 1. Here is what gets me close, but I’m picking on SalesRepNumber 200 instead of 100 for Division A and
SalesRepType 1.
WITH
cteCust (RowNum, CustomerNumber, Division, SalesRepType, SalesRepNumber, BeginDate)
AS
(
SELECT
[code]....
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Feb 12, 2014
by executing this qry i will get below result ,in that TId is duplicates that is from that i want recent record with same result.i want last one if TId comes duplicate record. any one ans pl
select sa.GrandTotal, sa.TId, sa.Id,sa.Date, pr.PName,
pr.PCode from Sales sa
Left Outer Join Product pr on sa.Pid = pr.Id where sa.GrandTotal is not null
GrandTotalTIdIdDate PNamePCode
200 122014-01-30 18:46:55.000RK100
560 252014-01-30 18:47:49.000RK100
420 262014-01-30 19:55:11.000RK100
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Oct 29, 2014
We have a work order notes table in our ERP system, and I want to see the most recent note record for each work order. Sometimes there will one be one, so I want to see all those, but sometimes there will be several notes for each work order and in this case I want to see only the most recently added note for that work order.
The query below shows some results as an example. In this case I want to see all the records except for work order number DN-000023 where I only want to see the note dated/timed 07-12-2011 16:52 (the most recent one).
select id, worknumber, date, notes from worksordernotes
id worknumber date
----------- ------------ ----------------------- --------------------
1 DN-000056 2011-12-07 13:22:00 13.20 PM JAMES- SPOK
2 DN-000079 2011-12-07 14:24:00 JCB HAVE TOLD ME THE
4 DN-000065 2011-12-07 15:48:00 ANDY FROM SITE RANG
5 DN-000023 2011-12-07 15:54:00 CHASED THIS 4 TIMES
6 DN-000023 2011-12-07 16:52:00 HOLTS ATTENDED THIS
7 DN-000092 2011-12-08 09:50:00 RETURNING WITH PARTS
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Apr 25, 2008
Hello, i have this problem
tbl1 :{ pcb varchar(30) ,serial varchar(30)},result varchar(30)
tbl2: { pcb varchar(30) ,date_time varchar(30),result varchar(30),data1 varchar(30),data2 varchar(30),}
what i need is for a range of serials get the pcb (from tbl1) and for those pcb's get as resultSet the table
tbl3:{pcb,serial,data1,data2} containing most recent data on date_time column.
example. tbl1 ={ pcb1,sn1,pass}
pcb2,sn2,pass
pcb3,sn3,pass}
tbl2={pcb1,date1,pass,dataX1,dataY1
pcb1,date2,pass,dataX2,dataY2
pcb2,date3,pass,dataX3,dataY3
pcb3,date4,pass,dataX4,dataY4
pcb1,date5,pass,dataX5,dataY5
pcb2,date6,pass,dataX6,dataY6}
where date1 is the most recent date
Request:what i want is for serial>=s1 and serial<=s2 get
pcb1,sn1,date1,dataX1,dataY1
pcb2,sn2,date3,dataX3,dataY3
What i already did is this:
Code Snippet
select max(CONVERT(DATETIME,tbl2.date_time,103)),tbl1.serial,tbl2.pcb
from tbl2
left JOIN tbl1
ON tbl2.Pcb=tbl1.pcb
where tbl1.serial>='1' and tbl1.serial<='53'
and tbl2."Result" like 'pass' and tbl1."result" like 'pass'
group by tbl2.pcb,tbl1.serial
And this works correctly.But unfortunately i also need data1 and data2 columns from tbl2.
If i include them in the Select Clause i have to include them also in the group by ,and this gives me also duplicate records.I mean it would return from tbl2, all records containing pcb1,pcb2.
How can i resolve this issue?
Thank you very much,
ElectricC
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Sep 3, 2007
Given the Patients and PatientVisits tables as per below, how do I obtain the most recent (latest) Weight and Height for each patient as per http://www.hazzsoftwaresolutions.net/selectStatement.htm
The result of the query should only return 3 rows/records,not 5. Thank you. Greg
Code Snippet
select p.ID, p.FirstName,p.LastName,DATEDIFF(year, p.DOB, getdate()) AS age
,pv.WeightPounds, pv.HeightInches
from Patients as p
inner join PatientVisits as pv
ON p.ID = PV.PatientID
order by pv.VisitDate desc
INSERT INTO Patients (ID, FirstName,LastName,DOB)
select '1234-12', 'Joe','Smith','3/1/1960'
union
select '5432-30','Bob','Jones','3/1/1960'
union
select '3232-22','Paul','White','5/12/1982'
INSERT INTO PatientVisits (PatientID, VisitDate,WeightPounds,HeightInches)
select '1234-12', '10/11/2001','180','68.5'
union
select '1234-12', '2/1/2003','185','68.7'
union
select '5432-30','11/6/2000','155','63.0'
union
select '5432-30','5/12/2001','165','63.0'
union
select '5432-30','4/5/2000','164','63.5'
union
select '3232-22','1/17/2002','220','75.0'
CREATE TABLE [dbo].[Patients](
[PID] [int] IDENTITY(1,1) NOT NULL,
[ID] [varchar](50) NULL,
[FirstName] [nvarchar](50) NULL,
[LastName] [nvarchar](50) NULL,
[DOB] [datetime] NULL,
CONSTRAINT [PK_Patients] PRIMARY KEY CLUSTERED
CREATE TABLE [dbo].[PatientVisits](
[ID] [int] IDENTITY(1,1) NOT NULL,
[PatientID] [nvarchar](50) NULL,
[VisitDate] [datetime] NULL,
[WeightPounds] [numeric](18, 0) NULL,
[HeightInches] [decimal](18, 0) NULL
) ON [PRIMARY]
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Apr 13, 2007
I have a fairly complex SP with 3 tables the idea being to display a Region, Client and EventI want to show only the last event for each client
I have replaced my event table with a View which returns the TOP 1 but all I get is the most recent of all records I want eg:Region 1, Client 1, Most recent event Region 1, Client 2, Most recent event Region 1, Client 3, Most recent event
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Aug 27, 2005
I am trying to pickup the most recent record by Product and Supplier.
eg.
Rec Prod Supp Date
1 1000 WES01 Jan 1/2005
2 1000 WES01 Apr 8/2005
3 1001 WES01 Apr 8/2005
4 1001 NAN04 Feb 15/2005
The Result I want is as follows:
Rec Prod Supp Date
2 1000 WES01 Apr 8/2005
3 1001 WES01 Apr 8/2005
4 1001 NAN04 Feb 15/2005
I have tried various methods with the TOP 1 and DISTINCT statements, but have not been able to get the results I am looking for. Help would be appreciated.
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Apr 5, 2007
I got some issues regarding selecting the most recent record from a datetime type column.
The probelm consists in following:
Table: News
Needed columns: Letter [varchar]
DateTimePublication [datetime]
Table News: Letter DateTimePublication
FR1_dd_mm_yy dd.mm.yy hh:mm:ss
FR1_dd_mm_yy dd.mm.yy hh+1h:mm:ss
FR1_dd_mm_yy dd.mm.yy hh-2h:mm:ss
EN1_dd_mm_yy dd.mm.yy hh+3h:mm:ss
EN1_dd_mm_yy dd.mm.yy hh+4h:mm:ss
EN1_dd_mm_yy dd.mm.yy hh-5h:mm:ss
DU1_dd_mm_yy dd.mm.yy hh:mm:ss
DU1_dd_mm_yy dd.mm.yy hh+1h:mm:ss
DU1_dd_mm_yy dd.mm.yy hh-2h:mm:ss
FR2_dd_mm_yy dd.mm.yy hh:mm:ss
FR2_dd_mm_yy dd.mm.yy hh+1h:mm:ss
FR3_dd_mm_yy dd.mm.yy hh-2h:mm:ss
EN2_dd_mm_yy dd.mm.yy hh+3h:mm:ss
EN3_dd_mm_yy dd.mm.yy hh+4h:mm:ss
EN3_dd_mm_yy dd.mm.yy hh-5h:mm:ss
DU1_dd_mm_yy dd.mm.yy hh:mm:ss
DU3_dd_mm_yy dd.mm.yy hh+1h:mm:ss
DU4_dd_mm_yy dd.mm.yy hh-2h:mm:ss
The ideea is that there are letters with the same name [Letter] but different DateTimePublication ... and I need only the letters with the most recent DateTimePublication for every letter type like FR_dd_mm_yy/EN_dd_mm_yy/DU_dd_mm_yy.
Thank you for your time and consideration!
SenneK
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Nov 6, 2007
If I have a table structure similar to the following, how might I query it to obtain the Transaction ID, Transaction Date, and Customer Name for the most recent transaction per customer only:
TransactionTable:
TransactionID TransactionDate TransactionType CustomerName
1 10/1/07 1 Bob
2 8/30/07 2 Janet
3 9/17/07 1 Mike
4 9/25/07 1 Bob
The following query will return all records in the table other than Janets...not what I want:
SELECT Transaction ID, TransactionDate, CustomerName
FROM TransactionTable
WHERE TransactionType = 1
ORDER BY TransactionDate DESC
The following query will return all records in the table other than Janets again, because DISTINCT will use the combo of TransactionID, TransactionDate, and Customer name for uniqueness...not what I want:
SELECT DISTINCT Transaction ID, TransactionDate, CustomerName
FROM TransactionTable
WHERE TransactionType = 1
ORDER BY TransactionDate DESC
The results set I'm looking for would be the following, where only the most recent entry per customer with TransactionType 1 is returned (i.e. one record for Bob):
TransactionTable:
TransactionID TransactionDate CustomerName
1 10/1/07 Bob
3 9/17/07 Mike
I believe I need an appropriate subquery to yield the results I desire, but can't sort out what it is? I do not want to execute multiple queries but subqueries are fine. Unfortunately there's probably an easy answer that my brain is not currently generating. Any help would be appreciated.
Note, this is not a real table, but a sample to illustrate the concept for the query I need.
Thanks.
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Sep 19, 2015
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,
[Code] .....
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Jun 16, 2014
I am working on a query that needs to return the record order number with the most recent requested delivery date.
It seems to work most of the time, but I have found some glitches for some of the items.
example is my item 10702, it is showing 2 records (both valid ones)
Record 1 is order # 10450-0, requested delivery date 03/21/2014
Record 2 is order # 10510-0, requested delivery date 04/29/2014
I need to only get the records with the most recent delivery date, in this example that would be 04/29/2014
This query is what I have so far:
SELECT
s.PriorQuoteNumber
,s.PriorItemNumber
,s.PriorQuoteDate
FROM
(
SELECT
s.SalesQuoteNumberAS 'PriorQuoteNumber'
[code]....
WHERE s.rn = 1What am I missing in my query> how can I change it so it only returns the most recent date?
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Feb 23, 2015
I have a table full of service invoice records. Some of the invoices are continuous, meaning that there may be an invoice from 01-16-2015 through the end of that month, but then another invoice that starts on feb 1 and goes for 6 months.
I want to only pull the most recent. Keep in mind that there may be other invoices in the same table for a different period. An example might be:
FromDate ToDate Customer Number Contract Number
02/01/2015 07/31/2015 2555 456
01/15/2015 01/31/2015 2555 456
04/01/2013 09/30/2015 2555 123
03/13/2013 03/31/2013 2555 123
From this table, I would like a query that would give me this result:
01/15/2015 07/31/2015 2555 456
03/13/2013 09/30/2015 2555 123
There will likely be more than just 2 consecutive records per contract number.
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Apr 2, 2015
So I have a query that need to find the most recent datetime record each day for a customer. So I have a query that looks like this:
SELECT
dhi.[GUID],
dhi.[timestamp],
la.[bundle_id],
dhi.[value]
FROM
[dbo].[DecisionHistoryItem] as dhi WITH(NOLOCK)
[Code] ....
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Sep 4, 2007
Hi i was wanting to know how to select a record in a gridview. I have a gridview with firsname and lastname. I currently have select command on it but don't want it. I want to be able to select first name or last name and have it take me to that record on the database.
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Jun 25, 2004
I'm trying to add a next and previous button to a popup window I have on a photo gallery -
Having trouble with the sql
I know I would have 2 select statements that would each return 1 result set.
I know how to get the top ( and bottom by ordering descending and doing Select Top 1)
But how would I get the next one up!
I would hate returning the entire image section and perform the calcuation in the business tier :(
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Mar 1, 2012
I have one table like this:
Code:
CREATE TABLE DlIndexTable
(SessionStartTime DATETIME NOT NULL PRIMARY KEY, SchemaID INTEGER NOT NULL,
DLBaseRate REAL NOT NULL)
and one like so:
Code:
CREATE TABLE DlTextDataTable (
SessionStartTime DATETIME NOT NULL REFERENCES DlIndexTable,
ChTimestamp FLOAT NOT NULL, Channel01data VARCHAR (255),
Channel02data VARCHAR (255), ... , Channel16data VARCHAR (255),
CONSTRAINT TxtDatPriKey PRIMARY KEY (SessionStartTime, ChTimestamp))
I want to get some combined data from both tables, so right now I am joining them at the SessionStartTime column, which is a primary key in the first and a foreign key in the second table, something like this:
Code:
SELECT DlIndexTable.SessionStartTime, DlTextDataTable.Channel01data
FROM DlIndexTable
LEFT JOIN DlTextDataTable
ON DlIndexTable.SessionStartTime = DlTextDataTable.SessionStartTime
WHERE DlIndexTable.SessionStartTime BETWEEN '2006-10-13 16:40:08.790' AND '2012-03-01 17:54:30.930'
ORDER BY DlIndexTable.SessionStartTime, DlTextDataTable.ChTimestamp
The trouble is that this query, exactly as requested, gives me all the entries from the second table matching the first, while I really would like to pick just one row (preferably, the first chronologically - by ChTimestamp) so that the first column (SessionStartTime) has distinct entries in the resulting table. What would be the simplest way of doing that? Performance is not a big priority over simplicity since the first table could have only a few hundred rows (maybe a couple of thousand), while the second will be real tiny.
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Mar 18, 2015
I’m writing a document management system. The documents themselves are created from the contents of a database. The database is SQL Server.
The database contains a table, like so:
ClientID, ProjectID, DocumentID, MinorVersion, MajorVersion, Name
Initially, the user will create a “V0.1” document. So the data would look something like
ClientID = 1
ProjectID = 1
DocumentID = 1
MajorVersion = 0
MinorVersion = 1
Name = “My Document”
Thereafter, the user can create new versions as “0.2”, “0.3”, etc., or “1.0”, “1.1”, “2.0”, etc.
For example, a “2.1” document would be stored as:
ClientID = 1
ProjectID = 1
DocumentID = 1
MajorVersion = 2
MinorVersion = 1
Name = “My Document”
The earlier versions will still exist on the database, but the latest version will be 2.1.
There may be several different documents, with different DocumentID’s (e.g. DocumentID = “1”, DocumentID = “2”), etc., and each of these documents may have many versions.
I’m trying to write a query to display a list of documents showing ClientID, ProjectID, DocumentID, MinorVersion, MajorVersion, Name… but the list should only display the latest version of each document.
So, if the database contained the following records:
ClientID, ProjectID, DocumentID, MajorVersion, MinorVersion, Name
1,1,1,0,1,My Document
1,1,1,0,2,My Document
1,1,1,0,3,My Document
1,1,1,1,0,My Document
1,1,1,2,0,My Document
1,1,1,2,1,My Document
1,1,2,0,1,My Second Document
1,1,2,0,2,My Second Document
1,1,2,0,3,My Second Document
My query should return:
ClientID, ProjectID, DocumentID, MajorVersion, MinorVersion, Name
1,1,1,2,1,My Document
1,1,2,0,3,My Document
… where 2.1 is the latest version of Document 1 and 0.3 is the latest version of Document 2.how to do it.
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Jul 20, 2005
I have a stored procedure (below), that is supposeto get a Reg Number from a table, (Reg_Number), insuch a way that every time the stored procedure is called,it will get a different reg number, even if the storedprocedure is called simultaneously from two differentplaces,However it is not working that way.If two different users access a function in thereVB program at the same time, the two different userswill get the same reg number.I have looked at the stored procedure, it looks foolproof,yet it is not working that way.Thanks in Advance,Laurence NuttallProgrammer Analyst IIIUCLA - Division of Continuing Education'---------------------------------------------------------------------------Here it is:CREATE PROCEDURE sp_GetNextRegNum@newRegNum char(6) = NULL OUTPUTASLABEL_GET_ANOTHER_REG:Select @newRegNum =(select min(Reg) from reg_number)IF Exists (select Reg from reg_number where reg = @newRegNum )BeginDelete from reg_number where reg = @newRegNumIF @@Error <> 0BeginGoto LABEL_GET_ANOTHER_REGEnd--EndifEndELSEGoTo LABEL_GET_ANOTHER_REG--EndifGO
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Mar 26, 2008
This is my first post so I hope I'm doing it to the right forum. I need to compare a LastUpdated time to Start and End Time fields to get the "Due" Time for a given order. Can someone give me the correct SQL? (the example below should result in 6:00:00 AM "Due" time.) All are DATETIME fields. Thank you.
LastUpdated StartTime EndTime DueTime
5/29/2007 12:04:32 AM 2:00:00 AM 11:30:00 AM 3:30:00 PM
11:30:00 AM 5:00:00 PM 9:00:00 PM 5:00:00 PM 2:00:00 AM 6:00:00 AM
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Apr 24, 2001
Hello.
I need to select a random record from TABLE. It might look easy with using RAND() function, but the tricky part is that ID's which are the PRIMARY KEY, were assigned as a random number.
So right now ID's in that TABLE look some thing like that: -18745, 45809, 129, -5890023, 487910943, -209, etc...
If any one have any ideas please respond.
Thanks in advance.
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May 19, 2004
Hi all,
I Have the following situation:
CREATE TABLE First_Table (id INTEGER IDENTITY(1,1) NOT NULL,
titre VARCHAR(50) NOT NULL,
annee INTEGER NOT NULL,
idMES INTEGER,
genre VARCHAR(20) NOT NULL,
resume TEXT,
codePays VARCHAR(4),
CONSTRAINT PKFilm PRIMARY KEY (idFilm),
FOREIGN KEY (idMES) REFERENCES Artiste,
FOREIGN KEY (codePays) REFERENCES Pays);
I'ld like fill in this tables records inserting in the column id values I got in the one other table. In Oracle it is possible to do it using sourceTable.nextval where sourceTable is created as: CREATE SEQUENCE sourceTable;
How can I do it in MS SQL or Transact-sql?
Thanx all
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