Fetching Sungle Record From Join
Nov 1, 2007
Hello folks,
I have a table, say T1 and this has a child tabel named T2. The common column between the tables are say COL. Now the scenario is there are multiples of records in the T2 for each record in table T1.
Now when i make a join of both the tables, say INNER JOIN, it returns the number of records based on the child table. i.e. say for a record in T1 there are 3 records in T2. Then through the INNER JOIN i will be getting the 3 records. But need only one record from the join. Have tried with "SET ROWCOUNT 1". But as you all know that this will not work. Kind suggest me the way friends........:eek: :eek: :eek:
Thanks,
Rahul Jha
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Sep 17, 2007
Hi,
I am facing a peculier problem. I have 3 records in my table. when i am trying to fetch the top 2 its able to fetch the records. but when trying fro moire than 2 (say top 3 or just the *) it say time out. can any one help me out in this regard.
Below is the error that I get when tryong to open the record from SSMS
SQL Execution Error.
Executed SQL statement: SELECT Transaction_ID, tril_gid, WorkGroup_ID, CreatedBy, CreatedDate, ModifiedBy, ModifiedDate, LCID FROM Symp_TransactionHeader
Error Source: .Net SqlClient Data Provider
Error Message: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.
---------------------------
OK Help
---------------------------
Thanks,
Rahul Jha
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Feb 25, 2008
Can I do something like this in RS -
I would like to call a function in a calculated field like
=code.GetNHW(Fields!id1.Value,Fields!date1.Value)
where the GetNHW() function would return a double value based on some conditions-
The code I would like to write in Code window-
Public Function GetNHW(ByVal ID As Integer, ByVal attDate As Date) As Double
Dim dsDTConfig As New DataSet
Dim NHW As Double
dsDTConfig = GetDS("tblEmployee_DailyTimingsConfig", "id=" & ID & " and '" & attDate & "' between configStartDate and configExpiryDate", False)
If dsDTConfig.Tables(0).Rows(0)("allowUnscheduledBreaks") = True Then
NHW = 0.01
ElseIf dsDTConfig.Tables(0).Rows(0)("allowUnscheduledBreaks") = False Then
NHW = 0.05
End If
Return NHW
End Function
What I am looking for is - I would want to get the record(dataset) within the function from the database
and based on the values got, I would check few conditions and calculate NHW.
--Anand
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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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Sep 21, 2007
my table isCustomer Customer Id--------- ----------------Mary 1Jhon 2Anna 3OrderId CustomerId Product ProductDesc------- --------- --------- -----------1 1 video bla bla2 1 tv bla bala3 2 video bla bla4 2 cd bla blaI want to see-------marry tv bla blaJohn cd bla blaanna
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Feb 25, 2008
Hi,
I have a table with a large number of records that I need to delete, before attempt to perform the delete I also archived the records to another table.
So I need to delete all of these selected records stored in the archive table from the main table. I can now reference all the records that qualify for the delete in the main table by performing a join on the archive table like so:
select * from my_main_table a
join my_archive_table b
on a.distinct_id=b.distinct_id
and a.surrogate_key=b.surrogate_key
and a.identifier=b.indentifier
So all the records check out to be the ones I'd like to perform a delete on but I just can't figure out how to perform a delete of the records with little or no change to the existing query.
Obviously something like this won't work:
delete from my_main_table a
join my_archive_table b
on a.distinct_id=b.distinct_id
and a.surrogate_key=b.surrogate_key
and a.identifier=b.indentifier
Though it would be nice if it did.:D
So my question is how would I use the existing query with some modification to delete only the records that this query returns. I've tried selection of records in the main table based on the existing records in the archive table but it can return a higher number of records than what I know is expected. I actually need the join specified to be in place to do it.
Can anyone render any assistance on this one???
I would certainly appreciate it.
Thanks.
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Oct 17, 2014
HOW TO SELECT LAST ROW IN GROUP BY CLAUSE AND JOIN LAST ROW WITH ANOTHER TABLE IN ONE QUERY?
INPUT:
custidlivingstatusdate
1single2014-01-01 00:00:00.000
1married2014-01-02 00:00:00.000
1married_kids2014-01-03 00:00:00.000
2married_kids2014-01-04 00:00:00.000
2married2014-01-05 00:00:00.000
2single2014-01-06 00:00:00.000
Query 1 -- select last record
SELECT *
FROM
(SELECT ROW_NUMBER() OVER(PARTITION BY Custid ORDER BY Date DESC) AS Seq,*
FROM Living_Situation
)t
WHERE Seq=1
Output:
Seqcustidlivingstatusdate
11married_kids2014-01-03 00:00:00.000
12single2014-01-06 00:00:00.000
Table Customer:
custidsexesurname
1mjansen
2mpietersen
How to link Query 1 with table Customer in one query?:
Desired output in ONE query:
custidsexesurnamelivingstatus
1mjansen married_kids
2mpietersen single
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Apr 23, 2015
I am new to SQL but trying to do join a few tables to get result showing showing one row per unique record.
Tables include:-
1. REQ
2. RFQ
3. PO
4. DOCUMENT (contains LAST_DOCUMENT_STATUS, DOCUMENT_ID, DOCUMENT_NUMBER, for example, REQ_CANCELLED, REQ_ID, REQ_NO)
5. DOCUMENT_STATUS (contains status of document, REQ_CREATE)
6. DOCUMENT_TRAIL (contains link between documents, PARENT_DOCUMENT, CURRENT_DOCUMENT, for example, REQ_ID (PARENT_DOCUMENT), RFQ_ID (CURRENT_DOCUMENT)
7. PO_REVISION (contains PO REVISION, when link with DOCUMENT, PO_REV_NO)
Currently when i tried to join all the TABLES, i get multiple lines against REQ_NO.
I realised the multiple lines generated due to the following:-
One to many relationships:
A. RFQ - 1 or more PO
B. PO - 1 or more PO_REVISON
I was thinking how to MAX the records in PO to show only the last PO_REVISION. It seems that DOCUMENT_TRAIL will contain 1 base document PO and 1 or more PO_REVISION.
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Mar 20, 2008
Hi, I have this scenario.
I have two tables joined.
Table A brings one record but table B brings two records for record in table A.
What I need is join both tables but I must bring (always) the max created record from table B if there are more than one record for the one in table A. Is this clear?
I dont want to use GROUP BY beacuse it is a very big query with lot of tables and it will be a mess.
I will give an example:
TABLE A
ID NAME
1 PETER
TABLE B
ID_TABLEA CREATED BROTHER
1 1-1-08 JOHN
1 2-1-08 PATRICK
If I join both tables I will have two records. What I need is to have the max created record from table B even if one or more records are joined. I only need one match from table B for each record of table A.
Any suggestion?
Thanks in advance.
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Oct 1, 2012
If you will I am trying to join a master invoice table to its detail records. The problem is I can't quite get the records to match correctly. There is a master record that has the net total of the invoice that corresponds to however many detail records for that invoice. I am attempting to get the records to line up in a query. I am having trouble because the key fields match the total up with each detail record. So for example in this record set below the 3825.75 value appears for each detail record so when I total the invoice column the figure is way too high. The detail has a 4462.54 and a -636.79 for a net of 3825.75. I tried to line the example up for better illustration. I copied it off a pdf and I am trying to replicate it programmatically.
0712RW-IN 7/31/2012 8/30/2012 4,462.54 0.00 3,825.75 INV 7/31/2012 4,462.54
C/M 8/31/2012 636.79- Reference: 0712RW
CREATE TABLE [dbo].[INVOICE](
[SRC] [varchar](3) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[ARDIVISIONNO] [varchar](2) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[CUSTOMERNO] [varchar](7) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[Code]....
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Nov 7, 2013
I have sql pulling back data from 2 tables (Ticket, Assignment) matching on an ID.
however the Assignment table can have more than 1 record for a matching ID in the Ticket table so is bringing back rows for each of these entries HOWEVER i only want 1 row returned matching on the FIRST record in Assignment table (on earliest DateAssigned field)
Here's my code
SELECT t.TicketID, CreatedByUserID, CreatedForUserID, DateCreated, a.DateAssigned FROM Ticket t
INNER JOIN Assignment a ON (SELECT TOP 1 TicketID FROM Assignment
WHERE [TicketID] = t.TicketID
ORDER BY DateAssigned ASC) = t.TicketID
WHERE (CreatedByUserID NOT IN (SELECT u.UserID FROM Users u
INNER JOIN Profiles p ON u.UserID = p.UserID
[Code] ....
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Jul 20, 2005
Thanks in advance for you help.SQL Server 2000I have a complex join, but a simple example will do the trick so...table1 (placement records, possibly many per case,highest ID beingmost recent)----------placementID(pk) * CaseID(fk) * OrganizationID(fk) * Name * Numbertable2 (Organizations Table, Many Placements can be at 1 organization)----------OrganizationID(pk) * OrgName * OrgTypetable 3(Case Table, each Case can have many placements)----------CaseID(pk) * StaffName * CreationDatenow my query...SELECT t1.placementID,t1.caseID,t2.OrgNameFROM table1 as t1INNER JOIN table2 as t2 on t2.OrganizationID = t1.OrganizationIDWHERE exists (select distinct max(placementID),CaseIDfrom t1 group by caseID)GROUP BY t2.OrgName,t1.PlacementID,t1.CaseIDmy results-------------placementID CaseID OrgName1 1 oneOrg2 1 two org3 1 three org4 2 another org5 3 yet another orgmy desired results------------------PlacementID CaseID OrgName3 1 three org4 2 another org5 3 yet another orgas you can see i get all records, but what i want is to see only thelast placementID for each case so i dont want duplicate caseID but Ido need the orgName, and yes the query works correctly without the orgname but as soon as i add orgName to the select statement I getduplicate CaseID's, How do i eliminate duplicate CaseID's and get onlythe MAX(placementID) for each Case and the OrgNameplease advise, getting desperate.thanks again so much for the help
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Sep 16, 2015
My tables look like this:
Users //
table
UserID // pk
UserName // varchar
UserFamilyName // varchar
User_Friends //
table
FriendsID // pk
UserID // fk
FamilyName // varchar
MY query:
SELECT
U.UserFamilyName, F.FamilyName
FROM
Users U LEFT
JOIN User_Friends
F ON U.UserID =
F.UserID
WHERE
U.UserName = ‘JOHN’
How do I adjust my query to select just the very first record from Users_friends, I want only the top first one.And if there are no friends how can I return an empty string instead of Null.
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Aug 17, 2015
I have this View and want to also see Clubs that do not have current memberships.I have the IS NULL but not seeing the Clubs that do NOT have memberships. attribute.PersonMembership is a SQL table that has membership information.
SELECT dbo.v060ClubOfficersPresOrNot.ClubNo, dbo.v060ClubOfficersPresOrNot.SortName, dbo.v060ClubOfficersPresOrNot.ClubName,
dbo.v060ClubOfficersPresOrNot.BSProgram, dbo.v060ClubOfficersPresOrNot.ClubSection, dbo.v060ClubOfficersPresOrNot.Code,
RTRIM(attribute.PersonMembership.InvoiceNumber) AS InvNo, dbo.v060ClubOfficersPresOrNot.President, dbo.v060ClubOfficersPresOrNot.Email,
[Code]...
The "PersonMembership" has all the membership records from 2015 through 2019 of membertypeid 1-4 for the sampling.Since the syntax used in Access do not carry over without modifications to SQL, SQL syntax to make it work in SQL.And if you know the proper SQL syntax for "Between Year(Date())+IIf(Month(Date())>=7,1,0) And Year(Date())+IIf(Month(Date())>=7,1,0)+4" instead of what I currently have in SQL, that would be wonderful.
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Jun 2, 2004
I have two tables:
1. tblProducts
columns: ProductID, ProductName
2. tblProductCodes
columns: ProductID, CustomerID, ProductCode
The 2nd table is for storing product codes for customers, in other words, one product can have different ProductCode for different customers. But some customers do not have ProductCode for a ProductID.
I want to create a query to return all the Products and its ProductCode (null is valid) for a specific customer.
I tried:
SELECT dbo.tblProductCodes.ProductCode, dbo.tblProductCodes.CustomerID,
dbo.tblProducts.ProductName,
dbo.tblProducts.ProductID
FROM dbo.tblProducts LEFT OUTER JOIN
dbo.tblProductCodes ON dbo.tblProducts.ProductID = dbo.tblProductCodes.ProductID
WHERE dbo.tblProductCodes.CustomerID = 2
But the query left out all products that does not have ProductCode value in tblProductCodes table for CustomerID = 2. I want all the ProductName returned from query and render null or empty string for ProductCode value if the code does not exist in tblProductCodes table for the customer.
Any help is highly appreciated.
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Oct 16, 2004
I have table Products and Orders that has the following columns:
table Products: ProductID, ProductName
table Orders: OrderID, ProductID, OrderDate, Quantity, Price
The Orders table contains orders placed on all the dates. I want to obtain a list of orders for a particular date, if there is no order for a product on the requested date, I want to return null values for the Quantity and Price fields.
I tried the following select statement:
select Products.ProductName, Orders.Quantity, Orders.Price from Products left join Orders on Products.ProductID = Orders.ProductID where Orders.OrderDate = '10/16/2004'
Where, there are a total of three products (A,B,C) in table Products. Product-C has no order on 10/16/2004, but I want it to return :
ProductName / Quantity / Price
Product-A 5 1.89
Product-B 6 2.43
Product-C null null
Obviously, my sql statement won't work becaue the where clause will filter out Product-C.
Could anyone help me figure out how to modify my sql code to get the resultset I want?
Thanks in advance.
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Feb 6, 2015
I have a table of "applicants" with unique applicant id and another table "reviews" with reviews which has unique id and Emplid and contains general program name like Math and then may contain 3 addition rows for specific program like Calculus, algebra, geometry etc.
There may or may not be a record for each applicant id in table reviews or there can be 1 or more than one record in reviews based on level of review( General or Specific).
All the general reviews has “Math” as Program_code but if there are more reviews, they can have Program_code like “Cal” , “Abr”, “Geo”
I want to join the tables so I can get all the records from both the tables where Program_code in reviews table is “Math” only.
That is I want to join the table and get all the records from reviews table where the program_code is “Math” only
How can I do that?
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May 21, 2008
Hi all!I'm trying to write a T-SQL statement that will allow me to do a maintenance for all user table for all databases on my server.This is what I got so far :DECLARE @cStatement varchar(255)DECLARE @dStatement varchar(255)DECLARE T_database CURSOR FOR SELECT '[' + CONVERT(varchar(64),name) + ']' FROM master.dbo.sysdatabases WHERE dbid>6SET nocount ONOPEN T_databaseFETCH NEXT FROM T_database INTO @dStatement WHILE (@@FETCH_STATUS <> -1)begin-- LOOP IMBRIQUÉ POUR PASSER AU TRAVERS DE CHAQUES ELEMENTS-- DE LA BASE DE DONNÉES ACTUELLE.EXEC ('DECLARE T_cursor CURSOR FOR SELECT ''UPDATE STATISTICS ['' + CONVERT(varchar(64),name) + '']'' FROM ' + @dStatement + '.dbo.sysobjects WHERE type = ''U''')OPEN T_cursorFETCH NEXT FROM T_curosr INTO @cStatementWHILE (@@FETCH_STATUS <> -1)beginPRINT(@cStatement)FETCH NEXT FROM T_cursor INTO @cStatementendDEALLOCATE T_cursorFETCH NEXT FROM T_database INTO @dStatement endDEALLOCATE T_databaseBut I get a sh**t load of errors :Msg 16916, Level 16, State 1, Line 15A cursor with the name 'T_curosr' does not exist.Msg 16916, Level 16, State 1, Line 15A cursor with the name 'T_curosr' does not exist.Msg 16916, Level 16, State 1, Line 15A cursor with the name 'T_curosr' does not exist.Msg 16916, Level 16, State 1, Line 15A cursor with the name 'T_curosr' does not exist.Msg 16916, Level 16, State 1, Line 15A cursor with the name 'T_curosr' does not exist.Msg 16916, Level 16, State 1, Line 15A cursor with the name 'T_curosr' does not exist.Msg 16916, Level 16, State 1, Line 15A cursor with the name 'T_curosr' does not exist.Msg 16916, Level 16, State 1, Line 15A cursor with the name 'T_curosr' does not exist.Please help!!! :beer:
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Apr 14, 2007
hi,
I would like to know that, I have three instances of the same database at three different servers and I am trying to fetch the data from the select query. "select * from table_name"
I would like to know, whether the order of rows fetched by this query will be different on different servers of sql server or the same order of rows will be fetched.
For me the output is coming different on each server database with he same query . Pls let me know, is there any default order by or it takes it randomly.
Thanks
Gaurav Gupta
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Jan 24, 2007
Hi there,
i have a task that has a ole-db destination. it inserts some data to a table. it's always 1 record that is gonna be inserted.after that the task is finished. however i want to use that same record in the followup-task. is there a way to retrieve the id of that specific record.
Please note that the id of the record is an int-identity from sql-server itself.
at the moment i'm fiddling with "remembering" the inserted data and hopefully it will be a 100%match in the next task, but i have a dark feeling it's not 100%.
is there a common way how to approach this?
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May 6, 2008
Hi all,
While I was testing our application installation on Vista, I ran across this problem:
When a program on Vista is executing a SPROC is a SQL Server on Vista (actually same machine), the SQLFetch(m_hstmt) returns a SQL_NO_DATA.
When the exact same program is executed on XP SP2 client against the same Vista based SQL Server, it correctly returns the rows.
The build of the program was done on a MDAC 2.8 XP SP2. When I tried to install 2.8 on Vista machine it seemed to have failed.
Using DSN vs. DSNless connection string made no difference. Nothing of intest in SQL Logs either.
Any clues?
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Oct 12, 2007
Hi,
I'm currently developing an application using C# and SQL Server Express, in which one of the functionalities is to allow the user to browse through the existing products, wether by browsing one by one (next, previous, first, last) or performing a search (by product name, id, etc.). I'm currently using the default DataSource and TableAdapter aproach, but I found out that when I execute the TableAdapter.Fill() method, all the data in the table is fetched... what with 10,000 records it takes a bit to perform, specially on slower connections.
So my doubt is, what would be the best aproach to solve this problem? I'm considering loading first position, and then when the user presses the next button I'd fetch second position, etc, this using ROW_NUMBER(). I could even cache every other 10 records or something like that. Since it is possible to know any records row number (as long as the records are ordered) it would even work when the user performs a search and goes directly into row number 5000 for instance.
Would this aproach be a good practice, because that's all I want, to do things the right way? Thank you for your time
EDIT: I've noticed that when creating a SqlDataReader there is the option to provide a CommandBehavior, but I'm not quite undestanding how this could be used, would some tweaking in this area do the job?
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May 10, 2008
Hi,
I have a small Problem.
Lets say i have 6 rows in a table (two column month and MonthCost )naming jan,feb,mar,apr,may.jun and all of them have some data. but while displaying in Ui i need to show all the months from Jan to december and july to december with values as something, say 0
so the values displayed in gridview sholud be like this
Month MontCost
Jan 1
Feb 1
Mar 1
.
.
.
Jul 0
Dec 0
. I tried it can be done using a temp table in db , but think of a scenaio where the i want to display for Number of times( 1 to 12 * 50). I don't want to hit performance and i am uisng sql server 2000.
Any hints or suggestions are welcomed.
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Jun 20, 2008
hai,
set dateformat dmycreate table tbl_sampemptable(employeeid int,StartDate datetime)
declare @employeeid intset @employeeid=1declare @startdate datetime,@enddate datetimewhile(@employeeid<=1000)begin set @startdate='01/05/2008' set @enddate='31/05/2008' while(@startdate<=@enddate) begin if(@employeeid<>1 and @startdate<>'02/05/2008') insert into tbl_sampemptable values (@employeeid,@startdate) else if(@employeeid=1) insert into tbl_sampemptable values (@employeeid,@startdate)z set @startdate=dateadd(day,1,@startdate)
endset @employeeid=@employeeid+1end
select * from tbl_sampemptabledrop table tbl_sampemptableset dateformat mdy
i have to select records depending on @count parameter to this table.Depending on this parameter value it should fetch sequential dates.For example
if @count=2then result should be like this,
EmployeeID FromDate ToDate
1 01/05/2008 02/05/2008
1 03/05/2008 04/05/2008
.
.
2 03/05/2008 04/05/2008 //note that here 01/05/2008 is not selected
because 02/05/2008 is missing
2 05/05/2008 06/05/2008
.
.
3 03/05/2008 04/05/2008 //note that here 01/05/2008 is not selected
because 02/05/2008 is missing
3 05/05/2008 06/05/2008
.
.
if @count=3 then result should be like this,
EmployeeID FromDate ToDate
1 01/05/2008 03/05/2008
1 04/05/2008 06/05/2008
.
.
2 03/05/2008 05/05/2008 //note that here 01/05/2008 is not selected
because 02/05/2008 is missing
2 06/05/2008 08/05/2008
.
.
3 03/05/2008 05/05/2008 //note that here 01/05/2008 is not selected
because 02/05/2008 is missing
3 06/05/2008 08/05/2008
.
. how can i do this.please help me.thanks in advance
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Mar 15, 2006
hello i'm using visual studio 2005 and asp.net 2 i have an error in the code that fetching data from databse in grid here is the code :Dim con As SqlConnection con = New SqlConnection("Data Source=local;AttachDbFilename='D:New Folderhorushorus.mdf';Integrated Security=True") Dim cmd As New String("SELECT TOP (10) serial, name, gender, dateofbirth FROM(dbo.students)ORDER BY RAND(CONVERT(varbinary(4), NEWID()))") Dim cd As SqlDataAdapter cd = New SqlDataAdapter(cmd, con) Dim ds As New DataSet() cd.Fill(ds, "students") grid.DataSource = ds.Tables("students").DefaultView grid.DataBind()that code is selecting random records from the database and showing it in grid the error is in the cd.fill(ds,"students") line so can any one help me in that problem.thanks
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Apr 21, 2006
hello, i'm using asp.net 2 with VB, i have a table in my db named 'exams' and i have 6 columns in this table one for question number and one for the question and 3 columns for 3 answers and a last column for the right answer, now in my page i want to show 7 questions and each question has 3 answers that i can choose between them i want the question appear in datatable and the answers in radiolist i have a little code for that but it shows an error it says "no row at position 1" so hope u guys can help : Dim con As New SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|aspnetdb.mdf;Integrated Security=True;User Instance=True") Dim a As New ArrayList(8) Dim i As New Integer i = 0 Dim d As New DataSet() Dim cmd As New SqlDataAdapter("select top(7) question from exams", con) cmd.Fill(d, "exams") a.Add(d.Tables.Item(0, 1)) i = i + 1 Dim ta As New DataTable ta.Rows(i).Item(0).text = d.Tables(0).Rows(0)(i)and by the way this code is for the questions i still dont have the code for the answers that will appear in a radiolist hope u can help .thanks
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Jan 14, 2004
Hi,
I have some duplicate rows in a table. I didnt define any primary key or unique key on the table.
I can get unique rows using DISTINCT, but i want to fetch only the duplicated rows and also i want to delete the duplicated rows.
How can i do it?
Please help me.....
Thanx in Advance
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May 21, 2007
Hi All,
I am getting problem in fetching data from SQL using C++ program.
How to Fetch SQL Unicode characters?
I am using ODBC driver calls in C++ to fetch SQL data.
It is working fine with character data.
But for Unicode data it displays “????? instead of data.
Can anybody please help?
Regards
Ketaki
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Mar 4, 2008
Hi i have 6 tables
1.location
id primary key
authorization string
count int
2.account
acc_id primary key
loc_id foreign key of location table
hsr string
3.Line
id primary key
intaralata string
interalat string
4.trunk
id primary key
intaralata string
interalat string
5.RCF
id primary key
intaralata string
interalat string
6.TSG
id primary key
intaralata string
interalat string
now i need to fetch the field authorization from location table by the following conditins
LOCATION.AUTHORIZATION using ACCOUNT.LOC_ID. If any (LINE/TRUNK/TSG/RCF.INTERLATA/INTRALATA= ’F’), and this value is blank, send LOCATION.AUTHORIZATION
can anyone help me out in this scenario. i need the sql query for fetching that fiels.
thanks in advanvce
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Feb 14, 2006
Hi,I have a table which contains a bunch of prepaid PINs. What is thebest way to fetch a unique pin from the table in a high-trafficenvironment with lots of concurrent requests?For example, my PINs table might look like this and contain thousandsof records:ID PIN ACQUIRED_BYDATE_ACQUIRED....100 1864678198101 7862517189102 6356178381....10 users request a pin at the same time. What is the easiest/best wayto ensure that the 10 users will get 10 different unacquired pins?Thanks for any help...
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May 21, 2008
I want to fetch definitions for all stored procedures & views in a database.
For stored procedures, I use sp_stored_procedures to retrieve all SPs & then use Procedure_Name column to fetch each SP's name followed by a call to OBJECT_DEFINITION to retrive its definition.
Now, I have found 'sp_views_rowset2' that returns all views. As I am not very sure about it, this is just for confirming that the task of 'sp_views_rowset2' is actually to return all views defined for the database!!!
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Oct 8, 2007
Hi,
I get 5000 records on executing a query.
In the form, I would like to display 50 records at a time in the grid from this resulted query, so i create 100 link labels(dynamically created based on the no. of records resulted from the query) within a panel.
When clicked on link1, first 50 records should be displayed,on clicking link2 next 50 records(ie, 51 to 100) should be displayed and so on.
So , i wrote the query as---
select top(50)* from tblindividual where id not in (select top(intValue)id from tblindividual )
where intValue would be 50 for link2,100 for link3,150 for link4 and so on
If i want to fetch last 50 records of the query, intValue would be 4950.Here the "not in" list becomes very big(1,2,3,.......,4949,4950) and hence the query is becoming a bit slow...
Is there any other method(query) to get the same result??.. because i heard that using "not in" keyword would make query execution slow.
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Oct 1, 2006
Have a table with following structure
ID DeviceName Status
1 Sony Good
2 Toshiba OK
3 Sony Bad
4 Tata OK
I need to return the following records
ID DeviceName Status
2 Toshiba OK
3 Sony Bad
4 Tata OK
If there are more than one record for the Device, then record with the latest ID should be returned.
If there is only one record for the Device, then that record should be returned.
Can this be achieved through a single query.
Any help is appreciated.
Thanks,
Loonysan
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