Restricting Number Of Records

May 19, 2006

I want to restrict the number of records coming from an OLEDB source. I have 500 records in my source table and I want to process one record at a time

I have I set the MaxBufferRows parameter to 1and it l sends 8 records from OLEDB source

Any help is appreciated.

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(URGENT)restricting The No. Of Records Resulted From A Select Query

Jun 3, 1999

dear friend,


i run a sql command like this
select * from table_name
what i want is that if no. of records found are greater then 500 than it should stop the query and only show those 500 records dont go further and stop the process
waiting for reply
ashish bhatnagar

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Hi,
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HI EVERYBODY
This is my procedure
"
CREATE PROCEDURE SP_SAMPLE_SEARCH
@Title nvarchar(256)
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SELECT ID,Title,Price FROM [tbl_Sim] WHERE ([Title] LIKE '%' + @Title + '%') Order by Price desc
GO
"
I exec procedure and it returns 12 results with diffirents ID
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I am a beginner.
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I'm using SQLCE. I'm using this sql statement:

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Feb 12, 2007

Okay..i have this problem ...i am using SQL server 2005 standard ,C#,VS2005
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-i also have returnValue defiend like this.Could this tell me anything about how many records are inserted or affected during update,select ?if so,how?
cmd.Parameters.Add(new SqlParameter("@returnVal", SqlDbType.Int));
cmd.Parameters["@returnVal"].Direction = ParameterDirection.ReturnValue;
Please help me out with this.Thanks

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hi
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May 13, 2008

Using linq what would be the most efficient method of counting the number of users in the users table? 

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Dec 16, 2005

Hi...
I just begining to use the asp.net 2.0 and have tow littel problems... in my project the user makes a "list of problems on a house" when hi post the house number the page shoud to generete a master recod with a keynumber, the date an hour and the state of problems... and a form to insert a list of problems... but if the house dosn´t exist this forms are hidden... then i need to know the nomber of records that gets a recordsource if its more than cero show the forms else hiden it... if show the forms i need to store in a variable the keynumber to store it in the problem details table... ¿How i can khow the number of records of a RecordSource gets?... and ¿How I can store in a variable a field value retrived for a RecordSource?... I´m using VWD and SQL Express that means ADO.NET 2.0...
cheers.

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Sep 27, 2001

Hi everbody,

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Thanks
Jack

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Sep 27, 2001

Hi everbody,

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Oct 20, 2004

Hi all

My manager ask me to provide him with the total number of records which have been added, deleted or modified on a certain database in SQL Server 2000 during the month of September. Is there away to get that information from the transaction log or by any how?

please some one guide me how to do that?

Your help is highly appreciated

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Apr 16, 2008

Hi,

Here is a basic example of the issue I am having:

Table 1 columns - name, address, zipcode, favorite food

For table 2 I want to find how many zipcodes exists and also take 20% of the count

Table 2 columns - based off Table 1 contains zipcode, count(zipcode) as ct, count(zipcode) * .20 as perc_ct

For example:

zipcode ct perc_ct
83746 10 2
93847 20 4

I want to run a query that will pull any 2 records for 83746 and any 4 records for 93847 from Table 1.

Is this possible?

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Apr 20, 2008

Why is it my number of records are different from my view. this are the following code that that i used in my code and in my view.

my code in my program: this code show all the records i know

If iConn.State = ConnectionState.Open Then iConn.Close()
iConn.Open()
Dim rsBills As New Data.DataSet
rsBills = New DataSet
Dim daBills As New SqlDataAdapter
daBills = New SqlDataAdapter
rsBills.Clear()
Dim cmBills As New SqlCommand
cmBills = iConn.CreateCommand ' "Select U_Code, U_Name, U_Level, P_Word From EPassword ",
cmBills.CommandText = "Select OR_no, Billing_mo From dbo.vwBilling Where Month(dbo.vwBilling.Billing_mo)= " & Month(Me.dtto.Value) & " And Year(dbo.vwBilling.Billing_mo) = " & Year(Me.dtto.Value) & " ORDER BY OR_no "

daBills.SelectCommand = cmBills
rsBills.AcceptChanges()
rsBills.Clear()
daBills.Fill(rsBills, "Bills")
Me.DataGridView1.DataSource = Nothing
Me.DataGridView1.DataSource = rsBills.Tables("Bills")

my code in views:

SELECT OR_no, Billing_mo, Account_no, Name, Address, Cno, Pres_read, Mprev_read, Sub_read, Pres2, Prev2, SRead2, Mtr_cons, Amount, NPC, Dmem,
Cmem, Tot_bill, D_Pmnt, Class, Newbill, Prd_fr, Prd_to, Type_Pmnt, Type_Date, Type_Docs, wtax
FROM dbo.Billing


hope you can help me guys

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Apr 21, 2008

is there a limitations of number of records that shows in the table when you use show data table?

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Mar 19, 2007

With this algorithm you can sum up an unkown number of records, so that an aggregation matches a fixed value.
If there is not an exakt match available, the algorithm returns the nearest possible value!-- Initialize the search parameter
DECLARE@WantedValue INT

SET@WantedValue = 349

-- Stage the source data
DECLARE@Data TABLE
(
RecID INT IDENTITY(1, 1) PRIMARY KEY CLUSTERED,
MaxItems INT,
CurrentItems INT DEFAULT 0,
FaceValue INT,
BestUnder INT DEFAULT 0,
BestOver INT DEFAULT 1
)

-- Aggregate the source data
INSERT@Data
(
MaxItems,
FaceValue
)
SELECTCOUNT(*),
Qty
FROM(
SELECT 899 AS Qty UNION ALL
SELECT 100 UNION ALL
SELECT 95 UNION ALL
SELECT 50 UNION ALL
SELECT 55 UNION ALL
SELECT 40 UNION ALL
SELECT 5 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 50 UNION ALL
SELECT 250 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 90 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 50 UNION ALL
SELECT 350 UNION ALL
SELECT 450 UNION ALL
SELECT 450 UNION ALL
SELECT 100 UNION ALL
SELECT 100 UNION ALL
SELECT 50 UNION ALL
SELECT 50 UNION ALL
SELECT 50 UNION ALL
SELECT 1 UNION ALL
SELECT 10 UNION ALL
SELECT 1
) AS d
GROUP BYQty
ORDER BYQty DESC

-- Declare some control variables
DECLARE@CurrentSum INT,
@BestUnder INT,
@BestOver INT,
@RecID INT

-- If productsum is less than or equal to the wanted sum, select all items!
IF (SELECT SUM(MaxItems * FaceValue) FROM @Data) <= @WantedValue
BEGIN
SELECTMaxItems AS Items,
FaceValue
FROM@Data

RETURN
END

-- Delete all unworkable FaceValues
DELETE
FROM@Data
WHEREFaceValue > (SELECT MIN(FaceValue) FROM @Data WHERE FaceValue >= @WantedValue)

-- Update MaxItems to a proper value
UPDATE@Data
SETMaxItems =CASE
WHEN 1 + (@WantedValue - 1) / FaceValue < MaxItems THEN 1 + (@WantedValue - 1) / FaceValue
ELSE MaxItems
END

-- Update BestOver to a proper value
UPDATE@Data
SETBestOver = MaxItems

-- Initialize the control mechanism
SELECT@RecID = MIN(RecID),
@BestUnder = 0,
@BestOver = SUM(BestOver * FaceValue)
FROM@Data

-- Do the loop!
WHILE @RecID IS NOT NULL
BEGIN
-- Reset all "bits" not incremented
UPDATE@Data
SETCurrentItems = 0
WHERERecID < @RecID

-- Increment the current "bit"
UPDATE@Data
SETCurrentItems = CurrentItems + 1
WHERERecID = @RecID

-- Get the current sum
SELECT@CurrentSum = SUM(CurrentItems * FaceValue)
FROM@Data
WHERECurrentItems > 0

-- Stop here if the current sum is equal to the sum we want
IF @CurrentSum = @WantedValue
BREAK
ELSE
-- Update the current BestUnder if previous BestUnder is less
IF @CurrentSum > @BestUnder AND @CurrentSum < @WantedValue
BEGIN
UPDATE@Data
SETBestUnder = CurrentItems

SET@BestUnder = @CurrentSum
END
ELSE
-- Update the current BestOver if previous BestOver is more
IF @CurrentSum > @WantedValue AND @CurrentSum < @BestOver
BEGIN
UPDATE@Data
SETBestOver = CurrentItems

SET@BestOver = @CurrentSum
END

-- Find the next proper "bit" to increment
SELECT@RecID = MIN(RecID)
FROM@Data
WHERECurrentItems < MaxItems
END

-- Now we have to investigate which type of sum to return
IF @RecID IS NULL
IF @WantedValue - @BestUnder < @BestOver - @WantedValue
-- If BestUnder is closer to the sum we want, choose that
SELECTBestUnder AS Items,
FaceValue
FROM@Data
WHEREBestUnder > 0
ELSE
-- If BestOver is closer to the sum we want, choose that
SELECTBestOver AS Items,
FaceValue
FROM@Data
WHEREBestOver > 0
ELSE
-- We have an exact match
SELECTCurrentItems AS Items,
FaceValue
FROM@Data
WHERECurrentItems > 0With references to
http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=73540
http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=73610
http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=78015
http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=79505


Peter Larsson
Helsingborg, Sweden

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DISTINCT And Number Of Records

Mar 19, 2008

Wondering if there is a way to do this...

I want to select the DISTINCT user name from each record in a table, and then have another field tell me how many records it found..

is there any way to do this with SQL?


SELECT DISTINCT user_Name FROM table ORDER BY user_Name


is what I have now....


need something that will return:

user_Name numRecs
bob 3
fred 6
sam 1
linda 2

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Jun 14, 2006

I have a resultset that looks something like this:

Anzahl users_statdata_hobbies
---------------------
499 Andere
266 Essen
60 Essen,Andere
127 Essen,Musik
10 Essen,Musik,Party,Andere
30 Essen,Party
4 Essen,Party,Andere
51 Kunst
4 Kunst,Andere
13 Kunst,Essen
4 Kunst,Essen,Andere

I get this with this query which might be altered somehow:



SELECT COUNT(*) AS Anzahl, users_statdata_hobbies

FROM vgetAuswertung2

GROUP BY users_statdata_hobbies

ORDER BY users_statdata_hobbies

Of course this is not normalized but I can't change this.

Nevertheless I need to get the full number of each Hobby and not only the combination of them.

So instead or in addition to the existing recordset I need e.g

357 Essen which ist the sum of all records containing 'Essen' in the above example

The list of individual hobbies is defined therefor I could loop through the list manually and search for 'WHERE Hobbies LIKE '%ESSEN%' and count but since it's quiet a big resultset and there are several other similar tasks already I'm looking for a more performant way and I'm sure it could be done in SQL directly.

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Dec 21, 2007



Hi i have sql statement like this :

SELECT row_number() over (ORDER by a.empid) as rec_num, empname
FROM employee_a
UNION
SELECT row_number() over (ORDER by a.empid) as rec_num, empname
FROM employee_b

the problem is the rec_num repeat for each statement like this :




rec_num empname

1 john
2 maggy
1 lee
2 mary
3 louis

How do i make the rec_num continue for the next statement after union.

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Nov 15, 2007

Hi...

I have Sql statement more like this

SELECT row_number() over (ORDER by a.employeeID) as rec_num, a.* FROM EmployeeA a
UNION
SELECT row_number() over (ORDER by a.employeeID) as rec_num, a.* FROM EmployeeB a


rec_num employeeID employeeName employeeDepartment


1 777 Mike HR
2 888 Susy HR
1 111 Smith TECH
2 222 John TECH
3 333 Lenny TECH



How do i get sequence number for all of this records. The rec_num reset for every statement. I want the records numbering for second statement continue from first statement so that it can be like this :

rec_num employeeID employeeName employeeDepartment


1 777 Mike HR
2 888 Susy HR
3 111 Smith TECH
4 222 John TECH
5 333 Lenny TECH

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Aug 21, 2006

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Aug 2, 2007

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Feb 26, 2004

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Jun 21, 2000

I'm trying to update every record with a incremental number. I wrote the following query but it updates the records with the same number. Could someone please tell me what I'm doing wrong? Thanks.

declare @NextKey int
SELECT @NextKey = NEXT_KEY FROM TABLE_KEYS
WHERE TABLE_NAME = "tblEmp"
set @NextKey = @NextKey + 1

DECLARE tblNewEmp_cursor CURSOR FOR
select emp_pk from tblNewEmp

open tblNewEmp_cursor
FETCH NEXT FROM tblNewEmp_cursor
WHILE @@FETCH_STATUS = 0
begin
update tblNewEmp
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Sep 12, 2013

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I am getting 76 orig_file records

But when I do

SELECT r.CHECK_NUMBER, i.orig_file
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Feb 9, 2004

Hi,

ive a table of over 90,000 records . is ther any method for restricting the number of records returned by a SELECT query

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Oct 29, 2013

I need to create a query that will select only one record out of x number of record per user id.

Sample Data
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001 |10/1/2013 |01
001 |10/2/2013 |A1
002 |1/1/2013 |BB
003 |5/8/2013 |EE
003 |4/2/2013 |BB

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002 | 1/1/2013 |BB
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