How Many Result-rows Does Mssql Return Should Be Used Asynchronous Method To Use Mssql Cursor?

Aug 11, 2004

How many result-rows does mssql return should be used asynchronous method to use mssql cursor, can get the best performance in any time in any result offset?





i want to make the cursor fast in any time whatever how many results returned

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SQL Server 2012 :: Asynchronous Cursor Population Slow For Large Result Sets

Jul 2, 2015

so async cursor population is supposed to create the cursor and return the cursor id quickly, while the server works on async populating the results. For a keyset-driven cursor, SQL Server stores the key sets in tempdb, which it then uses to fetch data for cursor results. Anyway, this works fine for smaller tables, but I'm finding for large result sets, the async cursor population is very slow and indeed seems to approximate synchronous time. The wait stat I get while it is running (supposedly asynchronously) is TRANSACTION_MUTEX.

Example:
--enable async cursor
exec dbo.sp_configure 'cursor threshold', 0; reconfigure;
declare @cursor int, @stmt nvarchar(max), @scrollopt int, @ccopt int, @rowcount int;
--example of giant result set
set @stmt = 'select * from sys.all_objects o1, sys.all_objects o1';

[code]...

Note that using the SQL "select * from sys.all_objects o1" is much faster than "select * from sys.all_objects o1, sys.all_objects o2". However, if cursor population is async, I'd expect the time to return a cursor id to be similar between the two.

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Paging MSSQL Database Result With PHP..Can Any One Help Me Plz..

Apr 5, 2007

hi guys..

i have got stucked into one programming problems which is called paging.i m using mssql as my database.i m using php for displaying data in to several pages but it is not supporting LIMIT functions, so can any one help me how to create php+mssql paging with accurate coding..? plz help me its urgent

bye..........................

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Database Migration Plan - (mssql/msde To -&> Pgsql/mssql)

Feb 10, 2008

Hi,

i was planning to create a database migration tool ..
its a certain database of a DMS (document management system) to
another DMS (two different DMS)... from DMS using msde 2000 server .. and tranfer to a DMS using a postgre sql or mssql .. depends ..

they have different table structures and names . . :D

i was thing of what language shall i use.. or what language is the best to work on this kind of project :)

hoping for your kind help guys. thanks :)



br
Frozenice

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Server Configuration For MSSQL 2000 And MSSQL 2005

Sep 6, 2006

Does enabling/disabling Data Execution Prevention have a performanceimpact on SQL 2000 or SQL 2005?For SQL best performance - how should I configure for:Processor Scheduling:Programs or Background servicesMemory Usage:Programs or System Cache

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Creating Index In MSSQL 2000 From MSSQL 2005

Mar 24, 2008

Hi,

I am a bit new to the MSSQL server. In our application, we use so many SQL queries. To imporve the performance, we used the Database enigine Tuning tool to create the indexes. The older version of the application supports MSSQL 2000 also. To re-create these new indexes, I have an issue in running these "CREATE INDEX" commands as the statements generated for index creation are done in MSSQL 2005. The statements include "INCLUDES" keyword which is supported in MSSQL 2005 but not in MSSQL 2000.

Ex:-

CREATE INDEX IND_001_PPM_PA ON PPM_PROCESS_ACTIVITY

(ACTIVITY_NAME ASC, PROCESS_NAME ASC, START_TIME ASC, ISMONITORED ASC)

INCLUDE

(INSTANCE_ID, ACTIVITY_TYPE, STATUS, END_TIME, ORGANIZATION);


Any help in creating such indexes in 2000 version is welcome.

Thanks,
Suresh.

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Generating Script For MSSQL 2000 From MSSQl 2005?

May 3, 2008

Hello
We are using SQL 2005 and now we are planning to use SQL 2000. what are the ways to do the process.

We taken the script spcificall for 2000 and run it in SQL 200. But we are getting the error in SCRIPT?

Could you please give me the step to do?

Thanks,
Sankar R

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Syntax For Returning And Accessing Multiple Result Sets In MSSQL 2k

Dec 29, 2006

Seasons greetings to everyone,A simple question. Could someone show me the syntax to produce multiple (2 or 3) result sets in a stored proc and how you access those sets from a c# program (ASP.NET)..Couldn't find a reference on Google, maybe I was asking the wrong question! Thanks for any help regardsDavej 

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Working In A Stored Procedure's Result Set In MSSQL 2000 (eg.: Selecting From)

Mar 4, 2004

Hy all.
My main goal would be to create some kind of map of the database, wich contains information of all connecting fields, including wich fields has key references to the other one and wich table. I'd like to have a table wich shows all the database connections tablename, field, field/table_key (from or to the key points), field_key_type (prymary or foreign)
So I thaugh to get sp_fkeys and sp_pkeys from master table and inner joining their results, but I simplay cannot "catch" their result sets. The script must have been written in SQL.
Obviously I'd like to do this:
SELECT * FROM EXEC sp_fkeys @table_name = 'xy'
of course it is not working this way, but I'd like something like this.


Please help! Thanx!

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Run Mssql 6.5 Client And Mssql 7.0 Server On Same Nt Workstaton?

Oct 26, 1999

Hello:

I am currently work on mssql 6.5. On my workstation, I have mssql 6.5
cient software.

However, I would like to install mssql 7.0 server on my nt workstation
and work with it to become familiar with 7.0. Can I install mssql 7.0
server on my nt workstation? Can mssql 6.5 client coexist with mssql 7.0
on the same machine if they are in different directories?

Thanks.

David Spaisman

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MSSQL Express 2005 Vs. MSSQL 2000

Jun 15, 2006

Ben writes "I have a sql script that doesn't function very well when it's executed on a SQL 2000 server.

The scrpt looks like this:


---------------------------------------------------------------------------------------------------
USE [master]
GO
IF NOT EXISTS (SELECT * FROM master.dbo.syslogins WHERE loginname = N'SSDBUSERNAME')
EXEC sp_addlogin N'SSDBUSERNAME', N'SSDBPASSWORD'
GO
GRANT ADMINISTER BULK OPERATIONS TO [SSDBUSERNAME]
GO
GRANT AUTHENTICATE SERVER TO [SSDBUSERNAME]
GO
GRANT CONNECT SQL TO [SSDBUSERNAME]
GO
GRANT CONTROL SERVER TO [SSDBUSERNAME]
GO
GRANT CREATE ANY DATABASE TO [SSDBUSERNAME]
GO
USE [master]
GO
If EXISTS (Select * FROM master.dbo.syslogins WHERE loginname = N'SSDBUSERNAME')
ALTER LOGIN [SSDBUSERNAME] WITH PASSWORD=N'SSDBPASSWORD'
GO
GRANT ADMINISTER BULK OPERATIONS TO [SSDBUSERNAME]
GO
GRANT AUTHENTICATE SERVER TO [SSDBUSERNAME]
GO
GRANT CONNECT SQL TO [SSDBUSERNAME]
GO
GRANT CONTROL SERVER TO [SSDBUSERNAME]
GO
GRANT CREATE ANY DATABASE TO [SSDBUSERNAME]
GO
USE [master]
GO
IF EXISTS (select * from dbo.sysdatabases where name = 'ISIZ')
DROP DATABASE [ISIZ]
GO
USE [SurveyData]
GO
exec sp_adduser 'SSDBUSERNAME'
GRANT INSERT, UPDATE, SELECT, DELETE
TO SSDBUSERNAME
GO
USE [SurveyManagement]
GO
exec sp_adduser 'SSDBUSERNAME'
GRANT INSERT, UPDATE, SELECT, DELETE
TO SSDBUSERNAME
---------------------------------------------------------------


I need to be converted to a script that can be executed on both MSSQL 2000 and MSSQL 2005.

I was wondering if somebody there could help me with this problem?!

Thanks,
Ben"

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Migration MSSQL 2000 32-bit To MSSQL 2005 64-bit

Nov 17, 2007

I've been tasked to move our production databases on MSSQL 2000 to 2005. I've supported MSSQL since version 6.5 and performed migrations to successor versions.

Current Environment is MSSQL 2000 32-bit with current Service Packs.

I've performed mock migrations on Test servers upgrading all Production instances simultaneously from MSSQL 2000 to 2005 32-bit. The Test environment is identical to Production minus server name, IP etc. Also I have a separate server with MSSQL 2005 installed where I use the DETACH / ATTACH and BACKUP / RESTORE method for migration / acceptance testing. There are approximately 30 databases totaling 70 GB. This has gone as expected and fairly successful. Vendors have been coordinated with to update code and staff for acceptance testing.

I'd prefer going directly to MSSQL 2005 64-bit instead if possible due to memory benefits etc. This is where I'd like some feedback prior to borrowing a 64-bit server for testing.

Upgrade options:

1. Is it better to migrate from MSSQL 2000 32-bit to 2005 64-bit via:
a. DETACH / ATTACH
b. BACKUP / RESTORE
c. Is one method more advantageous relating to the end result?
2. Regarding XP clients, have issues been experienced with the default SQL Server driver or is an alternate recommended for XP clients to connect to a MSSQL 64-bit server databases?
3. If you have performed this migration and have relevant experience please pass them along.

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How Can I Pass A String Parameter More Than 4000 Characters Into Execute() And Return Result For FETCH And Cursor?

Apr 7, 2008

Dear All

I have no idea to write a store procedure or only query to pass a string parameter more than 4000 characters into execute() and return result for FETCH and Cursor.

Here is my query sample for yours to understand.



SET NOCOUNT ON

DECLARE @ITEMCODE int, @ITEMNAME nvarchar(50), @message varchar(80), @qstring varchar(8000)

Set @qstring = 'select itemcode from oitm union

select itemcode from oitm union
select itemcode from oitm union
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select itemcode from oitm union
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select itemcode from oitm union

select itemcode from oitm union

select itemcode from oitm'

PRINT '-------- ITEM Products Report --------'

DECLARE ITEM_cursor CURSOR FOR

execute (@qstring)

OPEN ITEM_cursor

FETCH NEXT FROM ITEM_cursor

INTO @ITEMCODE

WHILE @@FETCH_STATUS = 0

BEGIN

PRINT ' '

SELECT @message = '----- Products From ITEM: ' +

@ITEMNAME

PRINT @message

-- Get the next ITEM.

FETCH NEXT FROM ITEM_cursor

INTO @ITEMcode

END

CLOSE ITEM_cursor

DEALLOCATE ITEM_cursor


Why i use @qstring? It is because the query will be changed by different critiera.

Regards
Edmund

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Iterating Over Table Rows In MSSQL

Sep 23, 2004

Hello all,

I have recently started working on a project which involves using MSSQL to access a simple database. I have worked with Postgres SQL before, so I have a general idea of what SQL can be used for, but I'm having some difficulties applying that knowledge to MSSQL.

Currently, I would like to do the following (in abstract terms):

declare tmp record
select column1 from tableA into tmp
for each entry from above selection do
insert into tableB values (tmp[column1], 0, 0, 0)

I remember doing something like this fairly easily in postgres. Trying to put that into MSSQL, I have:

CREATE FUNCTION dbo.newDay (@mDate datetime)
RETURNS int
AS
BEGIN
DECLARE @id int
DECLARE item_cursor CURSOR FOR
SELECT id FROM tblKitchenCat
OPEN item_cursor
FETCH NEXT FROM item_cursor INTO @id
WHILE @@FETCH_STATUS = 0
BEGIN
INSERT INTO tblKitchenList VALUES (@id, 0, 0, 0, 0, 0, @mDate)
FETCH NEXT FROM item_cursor INTO @id
END
CLOSE item_cursor
DEALLOCATE item_cursor
RETURN 0
END
GO

I get a syntax error next to AS... what is it?

Can somebody please help me out here... any articles related to moving to MSSQL from Postgres would also be highly appreciated.

In addition to that, I would like to schedule a particular function to run once a day, say at 2am. Is there a way to do this using MSSQL?

Thanks in advance.
Cheers,
Michael

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Update Rows From MSSQL To MySQL

Feb 7, 2004

Is there any way where I can add the MySQL Server as a Linked server to MS SQL server?
Is there any way where I can update a table in MySQL server based because a row was updated in MS SQL server using a trigger?

Thanks,
Amit

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ASP Update Method Not Working After A MSDE To MSSQL 2005 Expess Update

Oct 20, 2006

The Folowing code is not working anymore. (500 error)

Set objRS = strSQL1.Execute
strSQL1 = "SELECT * FROM BannerRotor where BannerID=" & cstr(BannerID)
objRS.Open strSQL1, objConn , 2 , 3 , adCmdText
If not (objRS.BOF and objRS.EOF) Then
objRS.Fields("Exposures").Value =objRS.Fields("Exposures").Value + 1
objRS.update
End If
objRS.Close

The .execute Method works fine

strSQL1 = "UPDATE BannerRotor SET Exposures=Exposures+1 WHERE BannerID=" & cstr(BannerID)
objConn.Execute strSQL1

W2003 + IIS6.0

Pls advice?

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Jan 17, 2007

Greeting.

I use OdbcConnection inside clr procedure, for getting data. If I use simple EXEC dbo.clr_proc - all is OK. If I use INSERT...EXEC I recive error message: Distributed transaction enlistment failed.

I set MSDTC security options for No Authentification and Allow inbound and Allow outbound, but it's no use.

Have this problem solution? May be, I must use another method to get my data?



P.S. Linked Servers and OPENQUERY is not applicable. Sybase not describe columns in stored proc result set and one stored proc may return different result set by params.

P.S.S. Sorry for bad english.









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How To Return Rows 200 - 300 Of A 500 Row Result Set

Sep 6, 2000

What is the easiest way to return rows 200 through to 300 of a 500 row result set using SQL? Is there a simple way of doing this or do I need to write some Transact SQL? Any ideas would be appreciated.

Thanks

Rod

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Deploying MSSQL 2005 Express DB To MSSQL 2005 WKGP Errors

Sep 29, 2006

DB is developed on local computer with MSSQL 2005 Express. My host is on MSSQL 2005 workgroup. Are they compatible, because I am getting errors? Is my approach wrong?

I have tried several approaches.

A) I created a backup of database on my local, then placed a copy on the server. Then I tried to restore through Server Management Studio. I get this error.

TITLE: Microsoft SQL Server Management Studio

------------------------------

An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)

------------------------------

ADDITIONAL INFORMATION:

The backed-up database has on-disk structure version 611. The server supports version 539 and cannot restore or upgrade this database.

RESTORE FILELIST is terminating abnormally. (Microsoft SQL Server, Error: 3169)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=08.00.2039&EvtSrc=MSSQLServer&EvtID=3169&LinkId=20476

------------------------------

BUTTONS:

OK

------------------------------



B: I also have tried copying the database. I put it in the same path as the other databases that can be read with server management studio on the server. Then, tried to get to it through server managements studio and it did not appear. So I tried to attach it. Then I received this error:

TITLE: Microsoft SQL Server Management Studio

------------------------------

Attach database failed for Server 'MROACH1'. (Microsoft.SqlServer.Smo)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=9.00.2047.00&EvtSrc=Microsoft.SqlServer.Management.Smo.ExceptionTemplates.FailedOperationExceptionText&EvtID=Attach+database+Server&LinkId=20476

------------------------------

ADDITIONAL INFORMATION:

An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)

------------------------------

Could not find row in sysindexes for database ID 10, object ID 1, index ID 1. Run DBCC CHECKTABLE on sysindexes.

Could not open new database 'LodgingDB'. CREATE DATABASE is aborted. (Microsoft SQL Server, Error: 602)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=602&LinkId=20476

------------------------------

BUTTONS:

OK

------------------------------

C: I have also tried opening the Database, and back up file through Server Management Studio. without success.

D: I also tried Windows and Software update at microsoft update, but no updates were recommended for Version on Server.

I'm surprised this is so hard. My original data base was created in same family of software. 2005 MS SQL Express. I could use some direct help from someone experienced with this. Am I doing it wrong or are the DB versions incompatible.

Mark Roach





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MSSQL - DTS Package - Find Distinct Rows - Output To TXT File - ActiveX?

Jun 11, 2007

Hello All,I am trying to create a DTS package.I have two tables tbl_A and tbl_B with similar data/rows but noprimary keys.tbl_A is master.I would like this package to query tbl_A and tbl_B and find1)all rows in tbl_A that are different in tbl_B, 2)all rows in tbl_Athat are not present in tbl_B and3)all rows in tbl_B that are not present in tbl_A, and then just showthose rows.Can this be done with a simple UNION?Perhaps this could produce a temp Table that can be dropped once theDTS package exists successfully.The 2nd part after all the above rows are retrieved is that I wouldlike to add an addional Column to the retrieved data called STATUSwhich has 3 possible values(letters) at the end of each row...M (modified) means that row exists in tbl_B but has 1 or moredifferent columnsA (add) means this row exists in tbl_A but not in tbl_BD (delete) means this row exists in tbl_B but not in tbl_AI'm hopping this DTS package would output a nice comma seperated TXTfile with only...1) rows from tbl_A that are different in tbl_B (STATUS M)2) rows from tbl_A that are not present in tbl_B (STATUS A)3) rows from tbl_B that are not present in tbl_A (STATUS D)Can a DTS package in MS SQL be used to perfom all of the above tasks?I would very much appreciate any help or any advise.Thanks in advance :-)

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Jan 18, 2008

How to convert a database in MSSQL 2000 to MSSQL 2005 database.Is there any tool or documentation available for this?

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I have my MSSQL hosted, any interface i can use so i can't connect to the data source?

for Mysql, i know i can use phpmyadmin, or mysql interface.

i have no idea for MSSQL, any advices?

i know there is one, which is Toad, but it has a lots of limitations, any good idea?

thanks.

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Feb 17, 2008

Hi,


till now i have used mysql with php.now i want to use mssql with php.my php and apache versions are
php 5.2.3
apache 2.2.4

from where i can get mssql and what i need to run my php scripts with mssql database.iam newbie in mssql.any of your help will be surely appreciated

thanks
mrjameer

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Migrate MSSQL 2005 Express -&&> MSSQL 2005 Srv

Apr 25, 2006

Hi!

What is the best way to migrate MSSQL 2005 Express -> MSSQL 2005 Srv?

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1 Row In, Multiple Rows Out: Synchronous Or Asynchronous?

Jan 15, 2008

I'm creating a script component that reads from an OLEDB source and writes to an OLEDB destination.

For every input row, I need to output several rows.I tried using the Row.DirectRowToOutput0() method inside a loop in the

Input0_ProcessInputRow routine but that's not working. Should I be using Addrow() instead? If I use Addrow() does this mean it needs to be an asynchronous transformation?

I remember seeing a blog entry (Jamie's?) that did almost exactly what I wanted, but I can't find it now.

Any pointers appreciated

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It Is Very Slow At Updating By Use Cursor (fetch Method)

Feb 5, 2001

Hi all,

I got a problem. I am working on DTS package. The last step is updating a table field. I wrote a stored procedure as below:

CREATE PROCEDURE [Update_product_manufacturer] AS

Declare @product_id int
Declare @supplier_name VarChar (255)


Declare ValueCursor Cursor For


select product.product_id, [P21_SUPPLIER_id_name_ke].[supplier_name]
from [VARIANT],[P21_INV_MAST_uid_itenID_weight_ke],[product],
[P21_INVENTORY_SUPPLIER_uid_supplierID_price_cost_k e],[P21_SUPPLIER_id_name_ke]
where
[product].product_id = [VARIANT].[product_id]
and
[P21_INV_MAST_uid_itenID_weight_ke].[item_id]=[VARIANT].[SKU]
AND
[P21_INV_MAST_uid_itenID_weight_ke].[inv_mast_uid]=[P21_INVENTORY_SUPPLIER_uid_supplierID_price_cost_k e].[inv_mast_uid]
AND
[P21_SUPPLIER_id_name_ke].[supplier_id]=[P21_INVENTORY_SUPPLIER_uid_supplierID_price_cost_k e].[supplier_id]
order by [product].[product_id]
for read only

Open ValueCursor
while (0 = 0)
begin
fetch next
from ValueCursor
Into @product_id, @supplier_name


update product
set manufacturer = @supplier_name
where product_id = @product_id

end

close ValueCursor
Deallocate ValueCursor

Notes: Table: Product has 28,000 rows, other tables with 28,000 - 56,000 rows

it's been 2 hours, the job is still working.

Who has this kind of experience? How can I make updating quickly?

Thanks,

Kevin Zhang

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Howdy folks!

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2. Use the IRowsetLocate :: GetRowsAt method
3. Use IRowsetIndex :: Seek to set the cursor
4. Use IRowsetBookmark :: PositionOnBookmark

Which of these are supported and/or recommended for SSCE?

Just to give you an idea of what I'm going for, the application will look something like the following on my own recordset classes:

const BOOL MoveToNext();
const BOOL MoveToPrev();
const BOOL MoveToFirst();
const BOOL MoveToLast();
const BOOL MoveTo(const UINT &cursor);
const UINT GetPosition() const;


Thanks a bunch!
Jeff

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I'm using a subquery to return a delivery charge line as a column in the result set. I want to see this delivery charge only on the first line of the results for each contract. Code and results are below.

declare @start smalldatetime
declare @end smalldatetime
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set @end = '2015-03-28 23:59' -- this should be the following Saturday

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[code]....

In this example, I only want to see the delivery charge of 125.00 for the first line of contract HU004377. For simplicity I have only shown the lines for 1 contract here, but there would normally be many different contracts with varying numbers of lines, and I only want to see the delivery charge once for each contract.

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is there anyway to get result from a sp into a cursor thanks

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fetch next from Job_Cursor
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eg
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2) myGameFrequency which contains a column : weeksSinceLastDrawn
Using the myGameRecency table ---
I wish to Fetch the GameId (which is just a counter) which corresponds to the last time a 0 was entered into that column....known in the programme as @lastTimeDrawn
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I then wish to subtract @lastTimeDrawn from @currentTimeDrawn and place that result in the myGameFrequency table.

I have tried a variety of code and last tried the following:

Can anyone please assist?
Thank you.
lpbcorp


if (Ball1 == true)

{

sqlCmd.CommandText = "DECLARE @currentTimeDrawn int " +
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"DECLARE lastrow_cursor CURSOR FOR " +

"(SELECT GameId FROM " + DBGameName.ToString() + "Recency WHERE One = 0) " +

"OPEN lastrow_cursor " +

"FETCH LAST FROM lastrow_cursor " +

"SET @lastTimeDrawn = lastrow_cursor " +

"SET @currentTimeDrawn = (SELECT GameId FROM " + DBGameName.ToString()

+ DBGameName.ToString() + "Recency WHERE Date = '" + Date + "') " +





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"CLOSE lastrow_cursor " +

"DEALLOCATE lastrow_cursor";

sqlCmd.ExecuteScalar();

}

break;

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<%
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%>
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Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately. Compiler Error Message: BC30035: Syntax error.

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