Avoiding Cursor

Help In Avoiding The Use Of A Cursor
Here is a simplified example of a problem I am facing.

I have 2 tables: Tasks and Employees.

Tasks:
(Task_ID, Task_Name, Task_Type, Task_Requirement, Employee_ID)
Employees:
Emp_ID, Emp_Name, Emp_Specialty, Emp_Task_Cnt, Max_Task_Cnt

Requirements: Write a MS SQLServer 2000 Storeed Procedure to:
1. Update the Tasks table by assigning the task to an Employee.
2. Incrememnt the employee's Emp_Task_Cnt for each Task assigned.
3. Match the Employee to the Task by matching the Task_Requirement to the Emp_Specialty.
4. Do not exceed the employee's Max_Task_Cnt.

I have a working solution to the requirements, but it involves using cursor logic. For all the obvious reasons, I wanted to avoid using a cursor (or cursor-like looping structure) but could not figure out any other way to avoid processing the Task table one record at a time because of the: "4. Do not allow an Employee's Task_Cnt to exeed the Max_Task_Cnt."

Q: Is there a way to do this without using a cursor and still meet all of the requirements?

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Avoiding Cursor - Want Set Based Solution
Hi there!

Here is my situation:

table 'ReceiptHeader'

IDCustomerIDDateCreated
1225102/06/2002
1332102/09/2002
1444002/15/2002


table 'ReceiptDiscount'

IDDiscountIDReceiptHeaderIDAmount
111210.00
241250.00
311325.00

**a receipt can have multiple discounts**


Table 'ReceiptDetail'

ReceiptHeaderID LineItemIDTotal
121155.33
131145.33
141241.66

**for this example there is only one line item per receipt**



Without using a cursor, i would like to return a result set
like this one below using a set based solution...


ReceiptIDCustomerIDDiscountTotal
1225160.00155.33
1332125.00145.33
144400.00241.66

Thanks,
SF

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Avoiding Compilation
Using small stored procs or sp_executesql dramatically reduces the number ofrecompiles and increases the reuse of execution plans. This is evident fromboth the usecount in syscacheobjects, perfmon, and profiler. However I'm ata loss to determine what causes a compilation. Under rare circumstances theusecount for Compiled Plan does not increase as statements are run. Seemsto correspond to when there is no execution plan. It would seem to me thatcompilation is a resource intensive task that if possible (data and schemaare not changing) should be held to a minimum.How does one encourage the reuse of compile plans?Is this the same as minimizing compilation?Looks like some of this behavior is changing in SQL 2005....Thanks,Danny

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Avoiding The Usage Of DTC
Hello

I am running an script and the following sentence throws and error because the DTC service is not running in the Remote Server:

insert into MyLocalTable
execute synonym_MyRemoteProcedure @SomeParameter

Since a transaction is not declared within the script, why is the DTC required?
How can I avoid the usage of the DTC? Is there a way to say "this code is not within a distributed transaction"?

Thanks a lot.

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Avoiding Deadlock
I have a stored procedure spUpdateClient, which takes as params a number of properties of a client application that wants to register its existence with the database.  The sp just needs to add a new row or update an existing row with this data.

I tried to accomplish this with code somethign like this.  (The table I'm updating is called Client, and its primary key is ClientId, which is a value passed into the sp from the client.)


IF (SELECT COUNT(ClientId) FROM Clients WHERE ClientId=@ClientId) = 0
BEGIN
    -- client not found, create it
    INSERT INTO Clients (ClientId, Hostname, Etc)
    VALUES (@ClientId, @Hostname, @Etc)
END

ELSE

BEGIN
    -- client was found, update it
    UPDATE Clients
    SET Hostname=@Hostname, Etc=@Etc
    WHERE ClientId=@ClientId
END
But the client apps call this every second or so, so soon enough I started getting primary key violations.  It looks like one client would make two calls nearly at the same time, both would get a 0 value on the SELECT line, so both would try to insert a new row with the same ClientId.  No good.
So then I added

SET TRANSACTION ISOLATION LEVEL SERIALIZABLE
BEGIN TRANSACTION
at the top, and a COMMIT at the bottom.  I thought the first one in would get to run the whole sp, and the next one in would have to wait for the first to be done.
Instead I'm now getting deadlock errors. 
If I understand the docs right, that's because the exclusive lock is not placed on the Clients table until the INSERT happens, not at the SELECT.  So when two calls to the sp happen at nearly the same time (call them A and B), A does the SELECT and that locks Clients so nobody else can update it.  Then B does the SELECT, locking Clients so nobody else (including A) can update it.  Now A needs to exclusively lock Clients to do its INSERT, but B still has that read lock on it, and they're deadlocked.
I could catch the deadlock in my client app after SQL Server kills one of the transactions, but it seems to me there should be some way to set a lock at the top of the sp that says "nobody else can enter this sp until I exit it".  Any such thing?
Thanks.
Nate Hekman

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Avoiding Caching
I'm trying to performance tune a procedure and am sort of being thwarted by caching.

When I first run the procedure, it takes a few seconds which is too long in this case. Subsequent executions in Management Studio are nearly instantaneous, though, which I imagine is due to caching and does not reflect the behavior of the procedure in production.

Is there a way to disable caching so that each execution of the procedure in Management Studio will be consistent and reflect the "first run" performance?

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Avoiding ASPNETDB SQL Database?
Hello.
I have been developing a small site that has two backend SQL Server databases.  One for my application data and one for the ASPNETDB database that is created by the ASP .NET Configuration utility.
Is it possible to configure the ASP .NET Configuration tool to use my custom database instead of creating a second database called ASPNETDB?
Thanks in advance.
Kev

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Avoiding SQL Injection With Dynamic SQL
I am exclusively using Stored Procedures to access the database, i.e. there are no Ad-Hoc SQL statements anywhere in the C# code. However, one thing I need to be able to do is to allow filtering for data grids on my ASP.NET page. I want to do the filtering in the Stored Procedure using Dynamic SQL to set the WHERE clause. However, one fear of mine is SQL injection from the client. How can I avoid arbitrary SQL injection, yet still allow for a dynamic WHERE clause to be passed into the stored procedure?

Jason Pacheco

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Avoiding Time-outs
The C++ application calls the database to look up property data. Onetroublesome query is a function that returns a table, finding data whichis assembled from four or five tables through a view that has a join,and then updating the resulting @table from some other tables. Thereare several queries inside the function, which are selected accordingto which parameters are supplied (house #, street, zip, or perhaps parcelnumber, or house #, street, town, city,...etc.). If a lot of parametersare provided, and the property is not in the database, then several queriesmay be attempted -- it keeps going until it runs out of queries or findssomething. Usually it takes ~1-2 sec for a hit, but maybe a minute insome failure cases, depending on the distribution of data. (~100 milproperties in the DB) Some queires operate on the assumption the input datais slightly faulty, and take relatively a long time, e.g., if WHEREZIP=@Zip fails, we try WHERE ZIP LIKE substring(@Zip,1,3)+'%'. Whileall this is going on the application may decide the DB is never going toreturn, and time out; it also seems more likely to throw an exception thelonger it has to wait. Is there a way to cause the DB function to fail ifit takes more than a certain amount of time? I could also recast it asa procedure, and check the time consumed after every query, and abandonthe search if a certain amount of time has elapsed.Thanks in advance,Jim Geissman

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Avoiding DTS Error Messages
How can I avoid a row transformation error in DTS Script (VBS)?
Thanks for your thoughts.

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Avoiding Divide By Zero In Report
What is the experession to evaluate if the result of a computation would be a divide by zero error for a text box in report?

 

IIF(divide by zero, display nothing, else display computed result)...??

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Avoiding Nested Cursors
I have a Master/Detail table setup - let's call the master "Account" and the detail "Amount". I also have a "black box" stored procedure (BlackBox_sp) which carries out a lot of complex processing.

What I need to do is, for each Account, I need to iterate thtough it's Amount records and call the black box each time. Once I've finished going through all the Amount records, I need to call the black box again once for the Account. This must be done with the Account & Amount rows in a specific order.

So I have something along the lines of





Code Block

DECLARE Total int

DECLARE Account_cur
OPEN Account_cur
FETCH NEXT FROM Account_cur
WHILE FETCH_STATUS = 0
BEGIN

SET Total = 0


DECLARE Amount_cur
OPEN Amount_cur
FETCH NEXT FROM Amount_cur
WHILE FETCH_STATUS = 0
BEGIN

SET Total = Total + Amount

EXEC BlackBox_sp (Amount)
END
CLOSE Amount_cur

EXEC BlackBox_sp (Total)

END
CLOSE Account_cur

Any tips on another approach would be appreciated given the contraints I have.

Greg.

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Avoiding Subselect Query
Hi,

Hope someone could help me in revising a long running query. Here is the query

select *
from table1
where classid is null
and productid not in (
select productid
from table1
where classid = 67)

In here table1 could have several occurance of productid in which productid could have different classid. The possible values of classid are: NULL,1,2,3,67. Basically I am looking for all records whose classid is null but should never had an instance in table1 where its classid is 67.

Do you have something like a "join" statment that will only include all records in the left table that is not in the right table?

Hope someone could help me with this. Thanks in advance.

-Ruel

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Help With Where Not Exists / Avoiding Loops
I am trying to figure out an efficient way of comparing two tables of identical structure and primary keys only I want to do a join where one of the tables reveals values for records which have been modified and/or updated.

To illustrate, I have two tables in the generic form:

id-dt-val

For which the 'val' in table 2 could be different from the 'val' in table 1 - for a given id-dt coupling that are identical in both tables.

Does anyone know of an efficient way I could return all id-dt couplings in table 2 which have values that are different from those with the same id-dt couplings in table 1?

NOTE: I am asking this because I am trying to avoid explicit comparisons between the 'val' columns. The tables I am working with in actuality have roughly 900 or so columns, so I don't want this kind of a monster query to do (otherwise, I would simply do something like where a.id = b.id and a.dt = b.dt and a.val <> b.val) - but this won't do in this case.

As a sample query, I have the following script below. When I attempt the where not exists, as you might expect, I only get the one record in which the id-dt coupling is different from those in table 1, but I'm not sure how to return the other records where the id-dt coupling is the same in table 1 but for where modified values exist:


create table #tab1
(
id varchar(3),
dt datetime,
val float
)
go

create table #tab2
(
id varchar(3),
dt datetime,
val float
)
go


insert into #tab1
values
('ABC','01/31/1990',5.436)
go
insert into #tab1
values
('DEF','01/31/1990',4.427)
go
insert into #tab1
values
('GHI','01/31/1990',7.724)
go


insert into #tab2
values
('XYZ','01/31/1990',3.333)
go
insert into #tab2
values
('DEF','01/31/1990',11.111)
go
insert into #tab2
values
('GHI','01/31/1990',12.112)
go


select a.* from #tab2 a --Trouble is, this only returns the XYZ record
where not exists
(select b.* from #tab1 b where a.id = b.id and a.dt = b.dt)
go

drop table #tab1
drop table #tab2
go

I really dont' want to have to code up a loop to do the value by value comparison for inequality, so if anyone knows of an efficient set-based way of doing this, I would really appreciate it.

Any advice appreciated!

-KS

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Avoiding Entries To Transaction Log
MS SQL Server 2005

I have a table in our system that hold temporary data for doing calculations. It will process several million records in it. each time they forecast our products.....

Is there any way to have the SQL server NOT add these transactions to the transaction log, since I'm going to wipe the data anyway? I'd like to be able to pick and choose the tables that are 'backed up' into the transaction log...

Please advice. Thanks

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Avoiding Query In Loop
Hello all,

I currently have an asp script that is generating a 12 month rolling report. From asp I'm running a for loop with 12 iterations, each one sending the following query:

select count(a.aReportDate) as ttl from findings f left outer join audits a on a.aID = f.auditID
where f.findingInvalid <> 1 and month(aReportDate) = " & Mo & " and year(aReportDate) = " & Yr

where the Mo and Yr variables are incremented accordingly.

I actually have 4 sets of data being pulled back to populate a graph, so this results in 48 queries with each page load! Obviously not ideal. So I'm hoping to reduce this to 4 queries. I was playing with the following in enterprise manager:

DECLARE @DT DATETIME
DECLARE @CNT INT
SET @DT = '10/31/07'
SET @CNT = 1
WHILE(@CNT < 12)
BEGIN
select count(a.aReportDate) as ttl from findings f left outer join audits a on a.aID = f.auditID
where f.findingInvalid <> 1 and month(aReportDate) = month(@DT) and year(aReportDate) = year(@DT)

SET @CNT = @CNT + 1
END

I haven't yet added any logic to increment the date, but my concern is that it looks like it is returning 12 separate results. Is there any way to combine this all into one resultset that will be passed back to my asp script? Hopefully this makes sense?

Suggestions on a completely different approach would also be welcome.

Thanks!

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Best Way To Insert New Records Avoiding Concurrency
I have web site when people orders through website at same time, a problem can be arrive when allocating next primary key value to new record, using maximum number of records +1
how to avoid this problem and insert to sql server
please give me your ideas

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Temporarily Avoiding Writing Into Trans Log
Guys,

Is there a way to temporarily disable logging into the transaction log.

In our system, we perform purging of our database every night, where the purging consists of 2 steps:

1. For each table, insert the data, to be deleted, into a corresponding "purged" table, to remain there for one day only.

2. For each table, delete the unnecessary data (i.e. same data stored in purged tables in step 1)

During these 2 steps, the transaction log grows, and since we perform the transactional log back up, the back up at that time is huge. We are running a bit low on the hard disk space and I'd like to disable logging into the transaction log when these operations are performed.

I really don't care about being able to recover this data.

I thought that one option is to set the database to simple recovery, then perform the purging of the database, and then change back to full.

However, I think that trans log can grow even if recovery model is simple [although you won't be able to retrieve any changes].

So, is there a way to delete a portion of a table [or insert into it] so that no data is written to a transaction log (I know that we can use TRUNCATE if we need to remove whole table without logging)?


Thanks a lot

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Avoiding &#39;System Creation Indexes&#39; ?
Hi,

Can anybody help me how to Stop this 'System Creation Indexes' (Index Name like 'WA%')?.

Is there any method is available to delete the Existing 'System Indexes'?.

thanks,
Srini

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Avoiding Index While Fetching Data
Hi there,
I'm using a query to fetch data from a table where one of the criteria is IN(...) clause for the key column of the table.Now the data being retrieved is ordered by the key column of the table even though I haven't specified any order by clause.
I want to know if there a way in which the data being fetched is in the order of my IN(...) clause.


Thanx
Aby

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Avoiding OS 1450 Errors On SQL2KEE/Win2K3EE
Just a point of information for anyone running SQLServer 2000 Enterprise Edition on Windows Server 2003 Enterprise Edition, using extended memory (AWE enabled, /PAE). We had lots of trouble with O/S 1450 errors and so forth, when the server was configured with the /3GB switch in boot.ini. We found articles online (go Google!) that the reason might be related to the PTE tables, and the ability of the OS to manage the memory mapping as the PTE tables become filled. In fact, with /3GB in, the PTE tables were only about 20000 entries. With the /3GB out, the paging tables got to about 180000 entries, nearly 10x increase. This is the key to avoiding OS 1450 errors on Win2K3EE/SQL2KEE installations that use extended memory.

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Turning Off Logging / Avoiding Huge Log File
Help,

Have a user who needs many data changes to a huge table with over 2 million rows.
He hopes to do this by running a series of queries.

Last time our log grew gargantuan. I know 7.0 is wonderful & dynamic, but after
an hour of rambling through books online I'm more confused than ever.

Is there a way we can code into his query at intervals any hard coded checkpoints
or log backups? Do we need to dbcc shrinkfile the logfile?

Thanks,

Mark Blackburn
mark@mbari.org

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Avoiding Locks While Inserting / Deleting From A Table?
 

Hello -- I have a Huge Table Tab1 (160 Mill Rows). I have a script that Inserts and Deletes from this Tab1 (This Script runs for a good 4/5 Hrs).
 
When the script is being executed, No other session can even do a "SELECT TOP 10 * FROM Tab1"
 
How do i avoid this? Any "NOLOCK" Keywords i should be specifying in my Script?
 
Thanks in advance

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Selecting From Multiple Tables Avoiding Duplicates
Hi

I currently have two tables called Book and JournalPaper, both of which have a column called Publisher. Currently the data in the Publisher column is the Publisher name that is entered straight into either table and has been duplicated in many cases. To tidy this up I have created a new table called Publisher where each entry will have a unique ID.

I now want to remove the Publisher columns from Book and JournalPaper, replace it with an ID foreign key column and move the Publisher name data into the Publisher table. Is there a way I can do this without duplicating the data as some publishers appear several times on both tables?

Any help with this will be greatly appreciated as my limited SQL is not up to this particular challenge!!!
Thanks!

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Avoiding Clear Text Passwords And Editing Of Packages
Hi!

I have an SQL Server where only a group of sysadmins have access to install DTSX packages. Those DTSX packages are developed by  another team that does not have access to the production SQL Server. They use their own SQL Server.

In order to make it as simple as possible to install these packages by the sysadmins, I suggested the use of configuration files. The files are associated with the job that executes the package and all that has to be done to install the package is copy it to the file system or import it into the SQL Server. Developers use their configuration file, sysadmins user theirs. Nothing new here.

The problem is that some of the packages have to access some old systems and we cannot use integrated authentication. We have to use SQL authentication and therefore specify a user account and password in the connection string. If this is stored in the configuration file, it is available in clear text! If I store the configuration in the package itself using ProtectSensitiveWithPassword protection level, the sysadmins will have to edit every DTSX package to reset the connections to the production environment (the developers always send them with their development configurations) and I don't want that. If I store it in a SQL Server database, it seems the sysadmins also have to edit the package to point the package configuration to the correct database and set the configuration filter.

Another solution is to store the credentials in clear text in the configuration file but set the file system permissions on that file so only the account that executes the package can read them (this is what I'm implementing if nothing better comes up...)

Is there any other way to do this? Am I doing something wrong?

Thanks in advance.

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Dynamic Cursor Versus Forward Only Cursor Gives Poor Performance
Hello,I have a test database with table A containing 10,000 rows and a tableB containing 100,000 rows. Rows in B are "children" of rows in A -each row in A has 10 related rows in B (ie. B has a foreign key to A).Using ODBC I am executing the following loop 10,000 times, expressedbelow in pseudo-code:"select * from A order by a_pk option (fast 1)""fetch from A result set""select * from B where where fk_to_a = 'xxx' order by b_pk option(fast 1)""fetch from B result set" repeated 10 timesIn the above psueod-code 'xxx' is the primary key of the current Arow. NOTE: it is not a mistake that we are repeatedly doing the Aquery and retrieving only the first row.When the queries use fast-forward-only cursors this takes about 2.5minutes. When the queries use dynamic cursors this takes about 1 hour.Does anyone know why the dynamic cursor is killing performance?Because of the SQL Server ODBC driver it is not possible to havenested/multiple fast-forward-only cursors, hence I need to exploreother alternatives.I can only assume that a different query plan is getting constructedfor the dynamic cursor case versus the fast forward only cursor, but Ihave no way of finding out what that query plan is.All help appreciated.Kevin

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Variable Type For Fetcing The Cursor Record In Tsql Cursor
what is the equivalent of the %rowtype in oracle for the tsql

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Could Not Complete Cursor Operation Because The Set Options Have Changed Since The Cursor Was Declared.
I'm trying to implement a sp_MSforeachsp howvever when I call sp_MSforeach_worker
I get the following error can you please explain this problem to me so I can over come the issue.
 

Msg 16958, Level 16, State 3, Procedure sp_MSforeach_worker, Line 31

Could not complete cursor operation because the set options have changed since the cursor was declared.

Msg 16958, Level 16, State 3, Procedure sp_MSforeach_worker, Line 32

Could not complete cursor operation because the set options have changed since the cursor was declared.

Msg 16917, Level 16, State 1, Procedure sp_MSforeach_worker, Line 153

Cursor is not open.
 
here is the stored procedure:
 

Alter PROCEDURE [dbo].[sp_MSforeachsp]

@command1 nvarchar(2000)

, @replacechar nchar(1) = N'?'

, @command2 nvarchar(2000) = null

, @command3 nvarchar(2000) = null

, @whereand nvarchar(2000) = null

, @precommand nvarchar(2000) = null

, @postcommand nvarchar(2000) = null

AS

/* This procedure belongs in the "master" database so it is acessible to all databases */

/* This proc returns one or more rows for each stored procedure */

/* @precommand and @postcommand may be used to force a single result set via a temp table. */

declare @retval int

if (@precommand is not null) EXECUTE(@precommand)

/* Create the select */

EXECUTE(N'declare hCForEachTable cursor global for

SELECT QUOTENAME(SPECIFIC_SCHEMA)+''.''+QUOTENAME(ROUTINE_NAME)

FROM INFORMATION_SCHEMA.ROUTINES

WHERE ROUTINE_TYPE = ''PROCEDURE''

AND OBJECTPROPERTY(OBJECT_ID(QUOTENAME(SPECIFIC_SCHEMA)+''.''+QUOTENAME(ROUTINE_NAME)), ''IsMSShipped'') = 0 '

+ @whereand)

select @retval = @@error

if (@retval = 0)

EXECUTE @retval = [dbo].sp_MSforeach_worker @command1, @replacechar, @command2, @command3, 0

if (@retval = 0 and @postcommand is not null)

EXECUTE(@postcommand)

RETURN @retval

 

GO

 
example useage:
 

EXEC sp_MSforeachsp @command1="PRINT '?' GRANT EXECUTE ON ? TO [superuser]"

GO

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Join Cursor With Table Outside Of Cursor
part 1

Declare @SQLCMD varchar(5000)
DECLARE @DBNAME VARCHAR (5000)

DECLARE DBCur CURSOR FOR
SELECT U_OB_DB FROM [@OB_TB04_COMPDATA]

OPEN DBCur
FETCH NEXT FROM DBCur INTO @DBNAME


WHILE @@FETCH_STATUS = 0
BEGIN

SELECT @SQLCMD = 'SELECT T0.CARDCODE, T0.U_OB_TID AS TRANSID, T0.DOCNUM AS INV_NO, ' +
+ 'T0.DOCDATE AS INV_DATE, T0.DOCTOTAL AS INV_AMT, T0.U_OB_DONO AS DONO ' +
+ 'FROM ' + @DBNAME + '.dbo.OINV T0 WHERE T0.U_OB_TID IS NOT NULL'
EXEC(@SQLCMD)
PRINT @SQLCMD
FETCH NEXT FROM DBCur INTO @DBNAME

END

CLOSE DBCur
DEALLOCATE DBCur


Part 2

SELECT
T4.U_OB_PCOMP AS PARENTCOMP, T0.CARDCODE, T0.CARDNAME, ISNULL(T0.U_OB_TID,'') AS TRANSID, T0.DOCNUM AS SONO, T0.DOCDATE AS SODATE,
SUM(T1.QUANTITY) AS SOQTY, T0.DOCTOTAL - T0.TOTALEXPNS AS SO_AMT, T3.DOCNUM AS DONO, T3.DOCDATE AS DO_DATE,
SUM(T2.QUANTITY) AS DOQTY, T3.DOCTOTAL - T3.TOTALEXPNS AS DO_AMT
INTO #MAIN
FROM
ORDR T0
JOIN RDR1 T1 ON T0.DOCENTRY = T1.DOCENTRY
LEFT JOIN DLN1 T2 ON T1.DOCENTRY = T2.BASEENTRY AND T1.LINENUM = T2.BASELINE AND T2.BASETYPE = T0.OBJTYPE
LEFT JOIN ODLN T3 ON T2.DOCENTRY = T3.DOCENTRY
LEFT JOIN OCRD T4 ON T0.CARDCODE = T4.CARDCODE
WHERE ISNULL(T0.U_OB_TID,0) <> 0
GROUP BY T4.U_OB_PCOMP, T0.CARDCODE,T0.CARDNAME, T0.U_OB_TID, T0.DOCNUM, T0.DOCDATE, T3.DOCNUM, T3.DOCDATE, T0.DOCTOTAL, T3.DOCTOTAL, T3.TOTALEXPNS, T0.TOTALEXPNS


my question is,
how to join the part 1 n part 2?
is there posibility?

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Cursor Inside A Cursor
I'm new to cursors, and I'm not sure what's wrong with this code, it run for ever and when I stop it I get cursor open errors




declare Q cursor for
select systudentid from satrans


declare @id int

open Q
fetch next from Q into @id
while @@fetch_status = 0
begin

declare c cursor for

Select
b.ssn,
SaTrans.SyStudentID,
satrans.date,
satrans.type,
SaTrans.SyCampusID,
Amount = Case SaTrans.Type
When 'P' Then SaTrans.Amount * -1
When 'C' Then SaTrans.Amount * -1
Else SaTrans.Amount END

From SaTrans , systudent b where satrans.systudentid = b.systudentid

and satrans.systudentid = @id




declare @arbalance money, @type varchar, @ssn varchar, @amount money, @systudentid int, @transdate datetime, @sycampusid int, @before money

set @arbalance = 0
open c
fetch next from c into @ssn, @systudentid, @transdate, @type, @sycampusid, @amount

while @@fetch_status = 0
begin

set @arbalance = @arbalance + @amount
set @before = @arbalance -@amount

insert c2000_utility1..tempbalhistory1
select @systudentid systudentid, @sycampusid sycampusid, @transdate transdate, @amount amount, @type type, @arbalance Arbalance, @before BeforeBalance
where( convert (int,@amount) <= -50
or @amount * -1 > @before * .02)
and @type = 'P'




fetch next from c into @ssn, @systudentid, @transdate, @type, @sycampusid, @amount
end
close c
deallocate c
fetch next from Q into @id

end
close Q
deallocate Q


select * from c2000_utility1..tempbalhistory1
truncate table c2000_utility1..tempbalhistory1

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Client Side Cursor Vs Sever Side Cursor?
I having a difficult time here trying to figure out what to do here.I need a way to scroll through a recordset and display the resultswith both forward and backward movement on a web page(PHP usingADO/COM)..I know that if I use a client side cursor all the records get shovedto the client everytime that stored procedure is executed..if thisdatabase grows big wont that be an issue?..I know that I can set up a server side cursor that will only send therecord I need to the front end but..Ive been reading around and a lot of people have been saying never touse a server side cursor because of peformance issues.So i guess im weighing network performance needs with the client sidecursor vs server performance with the server side cursor..I am reallyconfused..which one should I use?-Jim

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How Cursor Used In Asp.net
hii have creted cursor but i want to use in my asp.net programming when some insert or delete command is work that time i want to excute my cursor how can i do that using asp.net with c#  waiting for replaythanks 

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Is This Possible Without A Cursor?
 I have something like
 update table
set field = ...
where field = ...
 and for each entry that was effected by this query I want to insert an entry into another table.
I have always done this with cursors is there a more effecient way?  For some reason cursors run a lot slower on my sql2005 server than the sql2000 server...

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Use Of Cursor
 
 I need some help with the concept of a Cursor, as I see it being used in a stored procedure I need to maintain.
Here is some code from the stored proc. Can someone tell me what is going on here. I haveleft out some of the sql, but have isolated the Cursor stuff.
Open MarketCursor  -- How is MarketCursor loaded with data ?
FETCH NEXT
FROM MarketCursorINTO ItemID, @Item, @Reguest
WHILE @@FETCH_STATUS = 0BEGIN
 
DEALLOCATE MarketCursor
 

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Cursor For
Hi,
Declare wh_ctry_id CURSOR FOR 
 
Is "cursor for" is a function or datatype or what is this?
Regards
Abdul

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Need Help With A Cursor
I hope this is the appropriate forum for this question, if not then I apologize.
I've got a SQL Server 2000 stored procedure that returns data to be used in a crystal report in Visual Studio 2005.  Most of the stored procedure works well, but there is a point where I need to calculate an average number of days been a group of date pairs. 
I'm not familiar with cursors, but I think that I will need to use one to achieve the result I am looking for so I came up with the code below which is a snippet from my stored procedure.  In this part of the code, the sp looks at the temporary table #lmreport (which holds all of the data that is returned at the end to crystal) and for every row in the table where the terrid is 'T' (the territory is domestic), it selects all of those territories from the territory table and loops through them to determine the date averages (by calling a nested stored procedure, also included below) for each territory and then updates #lmreport with that data.
When I try to run the stored procedure, I get "The column prefix '#lmreport' does not match with a table name or alias name used in the query." on the line indicated. 
Does anyone have any idea what might be wrong or if this will even work the way I need it to?
Thank you in advance.
 

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Need Cursor Help
Hello, I'm trying to construct a cursor that will sequentually increment a number and then update a column with the incremented number. My propblem is that all the rows in the table are being updated with the base number +1. So all rows are updated with 278301. BUT, what I really want is for only the items with adrscode of 'bill to' to be given an incremented number.
For example, if there are only five rows of 100 with an adrscode = 'bill to' then only five rows will be updated and the value of the custnmbr should be, 278301, 278302, 278303 .....
I could really use some help with this cursor:
Declare @CustomerName as char (60),     @seqno as int,     @BaseSeqno as intset @Baseseqno = 278300
declare c cursor for select custnmbr from NXOFcustomers Where adrscode = 'BILL TO' order by custnmbropen cfetch next from c into @CustomerNamewhile @@fetch_status=0begin set @seqno = @BaseSeqno + 1
update NXOFcustomers set custnmbr = @seqnoWhere custnmbr = @CustomerName                    fetch next from c into @CustomerNameend close cdeallocate c
 

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Cursor And UDf
Hello:
I am trying to define a cursor as follows:
 DECLARE   EmployeeList CURSOR FOR   dbo.GetRecord(@EmployeeID,@CurrentDate)Can't I use a UDF in the CURSOR FOR ?Help please.thank you.

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Is Cursor Best Way To Go?
I need to get two values from a complex SQL statement which returns a singlerecord and use those two values to update a single record in a table. Inorder to assign those two values to variables and then use those variablesin the UPDATE statement, I created a cursor and used Fetch Next.... Into.This way, I only have to call the complex SQL once instead of twice.This seems like the best way to go. However, I've always used cursors forscrolling through resultsets. In this case, though, there is just a singlerecord being returned, and the cursor doesn't scroll.Is that the most efficient way to go, or is there a better way to be able touse both values from the SQL statement without having to call it twice?Thanks.

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To Use A Cursor Or To Not Use A Cursor
I need to loop through a set of records to build a string. I can dothis without using a cursor by inserting the records into a temporarytable with an identity column. Count the number of records in thetemporary table and loop though the table selecting the values andbuilding the string where the identity column = the loop number.Is this more or less efficient than just using a cursor? If so why isit more or less efficient?Please explain in detailThank You,Jim Lewis

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Cursor Help PLEASE!
Yes, I know that cursors are gauche, but I can't see a solution usingqueries and I'm pretty adept at them. This will be running once a dayin the wee small hours when minimal server activity will be takingplace, it will be handling 700-1000ish records. The box is a P4/SQL2000 with lots of ram and multiple CPUs.The code for creating and populating the table in question follows thecursor code.The application is for medical transport billing. We take people tothe doctor and home again and the health plan pays us. A one-waytrip, home -> doctor, is a single ‘line item'. A round trip, home ->doctor -> home is rolled up, the charge summed, and billed as a singleline item. A three-leg, home -> doctor -> pharmacy -> home, is billedas three line items.This code is just for identifying the data, once this works correctlyI'll add the code in for doing the rollup and I'm confident I canhandle that.If I ruled the world, every leg of every trip would be a single lineitem and I wouldn't have to deal with this rollup BS, but I don't makethe policy, I just have to code it. <g>A trip is a round trip if the date, account number, and passenger nameis the same and the origin street of record X equals the destinationstreet of record X+1. The problem is that X+1 could be the start of around trip and X+2 could be the completing leg of a round trip. Soyou could have a scenario of hospital -> home -> doctor -> home inwhich X is one-way and X+1 & X+2 form a round trip.BLERG! Any help is greatly appreciated, it has me stumped./*select trip_id, acct_number, passenger, street, dest_street,flat_rate, screated, smeteroff, remark1, remark2from zvoucherstodbf order by cast(screated as smalldatetime),acct_number, passenger, smeteroff*/declare @roundtrip integerdeclare @cmsg char(200)declare @Trip_ID char(11)declare @acct_number char(11)declare @passenger char(12)declare @created char(22)declare @meter_off char(22)declare @street char(32)declare @dest_street char(32)declare @remark1 char(32)declare @remark2 char(32)declare @flat_rate smallintdeclare @prev_cmsg char(200)declare @prev_Trip_ID char(11)declare @prev_acct_number char(11)declare @prev_passenger char(12)declare @prev_created char(22)declare @prev_meter_off char(22)declare @prev_street char(32)declare @prev_dest_street char(32)declare @prev_remark1 char(32)declare @prev_remark2 char(32)declare @prev_flat_rate smallintdeclare cVoucher cursor scroll forselect trip_id, acct_number, passenger, street, dest_street, screated,smeteroff, remark1, remark2, flat_ratefrom zVouchersToDBF--where screated = '12/03/03'order by screated, acct_number, passenger, smeteroffopen cVoucher--Load the @Prev_ (previous record) variables with the first recordfetch from cVoucher into @prev_trip_id, @prev_acct_number,@prev_passenger,@prev_street, @prev_dest_street, @prev_created, @prev_meter_off,@prev_remark1, @prev_remark2, @prev_flat_rate--Initialize current variablesselect @trip_id = @prev_trip_idselect @acct_number = @prev_acct_numberselect @passenger = @prev_passengerselect @street = @prev_streetselect @dest_street = @prev_dest_streetselect @created = @prev_createdselect @meter_off = @prev_meter_offselect @remark1 = @prev_remark1select @remark2 = @prev_remark2while @@fetch_status = 0--not EOFbeginselect @roundtrip = 0if (@prev_created = @created) and (@prev_acct_number = @acct_number)and (@prev_passenger = @passenger)and (@prev_street =@dest_street)-- MATCH! Apparent round tripbeginselect @roundtrip = 1select @prev_trip_id = @trip_idselect @prev_acct_number = @acct_numberselect @prev_passenger = @passengerselect @prev_street = @streetselect @prev_dest_street = @dest_streetselect @prev_created = @createdselect @prev_meter_off = @meter_offselect @prev_remark1 = @remark1select @prev_remark2 = @remark2endif (@roundtrip = 0)beginfetch next from cVoucher into @trip_id, @acct_number, @passenger,@street, @dest_street, @created, @meter_off, @remark1, @remark2,@flat_rateif (@prev_created = @created) and (@prev_acct_number = @acct_number)and (@prev_passenger = @passenger)and (@prev_street =@dest_street)-- MATCH! Apparent round tripselect @roundtrip = 1else--definitely one-way tripselect @roundtrip = 0fetch prior from cVoucher into @trip_id, @acct_number, @passenger,@street, @dest_street, @created, @meter_off, @remark1, @remark2,@flat_rateendif (@roundtrip = 1)beginselect @cMsg = 'Start: ' + rtrim(@prev_created) + ' ' +rtrim(@prev_trip_id) + ': ' + @prev_acct_number + ' ' +rtrim(@prev_meter_off) + ' ' + @prev_passenger + ' ' +rtrim(@prev_street) + ' to ' + @prev_dest_street + ' ' + @prev_remark1+ ' ' + @prev_remark2print @cMsgselect @cMsg = 'End: ' + rtrim(@created) + ' ' + rtrim(@trip_id) +': ' + @acct_number + ' ' + rtrim(@meter_off) + ' ' + @passenger + ' '+ rtrim(@street) + ' to ' + @dest_street + ' ' + @remark1 + ' ' +@remark2print @cMsgprint ''endelsebeginselect @cMsg = 'One-Way: ' + rtrim(@created) + ' ' + rtrim(@trip_id)+ ': ' + @acct_number + ' ' + rtrim(@meter_off) + ' ' + @passenger + '' + rtrim(@street) + ' to ' + @dest_street + ' ' + @remark1 + ' ' +@remark2print @cMsgprint ''endselect @prev_trip_id = @trip_idselect @prev_acct_number = @acct_numberselect @prev_passenger = @passengerselect @prev_street = @streetselect @prev_dest_street = @dest_streetselect @prev_created = @createdselect @prev_meter_off = @meter_offselect @prev_remark1 = @remark1select @prev_remark2 = @remark2fetch next from cVoucher into @trip_id, @acct_number, @passenger,@street, @dest_street, @created, @meter_off, @remark1, @remark2,@flat_rateendclose cVoucher--/*--This code works for displaying the data set as a whole-- so you can visually identify what constitutes a round trip.open cVoucherfetch from cVoucher into @trip_id, @acct_number, @passenger,@street, @dest_street, @created, @meter_off, @remark1, @remark2,@flat_ratewhile @@fetch_status = 0beginselect @cMsg = rtrim(@created) + ' ' + rtrim(@trip_id) + ': ' +@acct_number + ' ' + @passenger + ' ' + @street + ' ' + @dest_street +' ' + @meter_off + ' ' + @remark1 + ' ' + @remark2print @cMsgfetch next from cVoucher into @trip_id, @acct_number, @passenger,@street, @dest_street, @created, @meter_off, @remark1, @remark2,@flat_rateendclose cVoucher--*/deallocate cVoucherCREATE TABLE [zVouchersToDBF] ([house] [char] (5) NULL ,[street] [char] (32) NULL ,[district] [char] (8) NULL ,[passenger] [char] (12) NULL ,[remark1] [char] (32) NULL ,[remark2] [char] (32) NULL ,[dest_house] [char] (5) NULL ,[dest_street] [char] (32) NULL ,[dest_district] [char] (13) NULL ,[acct_number] [char] (11) NULL ,[sub_acct_number] [char] (15) NULL ,[flat_rate] [money] NULL ,[car] [char] (3) NULL ,[driver_id] [char] (9) NULL ,[meter_on] [char] (5) NULL ,[meter_off] [char] (5) NULL ,[fare] [char] (9) NULL ,[cancelled] [char] (21) NULL ,[no_trip] [char] (7) NULL ,[no_trip_reason] [int] NULL ,[auth_number] [char] (32) NULL ,[auth_name] [char] (32) NULL ,[trip_id] [char] (7) NULL ,[created] [char] (8) NULL ,[patient_birthday] [char] (16) NULL ,[waittime] [char] (3) NULL ,[sNoTrip] [char] (22) NULL ,[sMeterOn] [char] (22) NULL ,[sMeterOff] [char] (22) NULL ,[sCancelled] [char] (22) NULL ,[sCreated] [char] (22) NULL ,[sPatientBirthday] [char] (22) NULL ,[SystemRate] [money] NULL) ON [PRIMARY]GOInsert zvoucherstodbfValues (null,'100 E 1st',null,'A','X','Y',null,'200 W2nd',null,'1000',null,5.00,null,null,null,'13:20', '5',null,null,null,null,null,'1',null,null,null,nu ll,null,'13:20',null,'12/8/2003',null,null)Insert zvoucherstodbfValues (null,'200 W 2nd',null,'A','X','Y',null,'100 E1st',null,'1000',null,5.00,null,null,null,'14:20', '5',null,null,null,null,null,'2',null,null,null,nu ll,null,'14:20',null,'12/8/2003',null,null)Insert zvoucherstodbfValues (null,'101 E 101',null,'B','X','Y',null,'202 W202',null,'2000',null,10.00,null,null,null,'13:50' ,'10',null,null,null,null,null,'3',null,null,null, null,null,'13:50',null,'12/8/2003',null,null)Insert zvoucherstodbfValues (null,'123 N 456',null,'C','X','Y',null,'234 S321',null,'2000',null,5.00,null,null,null,'13:51', '5',null,null,null,null,null,'4',null,null,null,nu ll,null,'13:51',null,'12/8/2003',null,null)Insert zvoucherstodbfValues (null,'999 N 666',null,'D','X','Y',null,'666 S999',null,'1000',null,7.50,null,null,null,'14:00', '7.5',null,null,null,null,null,'5',null,null,null, null,null,'14:00',null,'12/8/2003',null,null)Insert zvoucherstodbfValues (null,'666 S 999',null,'D','X','Y',null,'999 N666',null,'1000',null,8.00,null,null,null,'14:30', '8',null,null,null,null,null,'6',null,null,null,nu ll,null,'14:30',null,'12/8/2003',null,null)Insert zvoucherstodbfValues (null,'123 n 456',null,'E','X','Y',null,'456 s789',null,'3000',null,5.00,null,null,null,'14:30', '5',null,null,null,null,null,'7',null,null,null,nu ll,null,'14:30',null,'12/8/2003',null,null)

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What Is A Cursor?
I had a friend write a stored procedure to perform a function for oneof my clients. What he wrote doesn't fully do what I need, and I hopeto finish it myself. I have programming sense, but not so much withSQL.I'm trying to figure out the code, and he has used something called a"cursor." I'm not sure whether this is an SQL construct or a structurethat he has just labeled "cursor." My guess is that it is an SQLconstruct. Can anyone give me a quick run down of how this works?sincerely,Tyler H.-----------------------------------------------<a href="http://www.seearoomhawaii.com/bed-breakfasts/">bed &breakfasts in Hawaii</a>

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It Is Possible With Cursor?
I need to fill a cursor with 3 columns.
A want to use a Select sprocs (for re-use de code), but this sproc return 15 columns and the 3 a need was not the 3 frist. :confused:

Do I need to map the 15 columns with 15 variables locally? Or they have a way easier?


Thanks

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Can I Use SQL Instead Of Cursor?
Hi,

I'm currently converting a VB function to SQL-Server. The function uses a cursor to find the "terms of delivery" (TOD) with the highest priority.

I have a table with articlenumber, tod (and lots of other columns that doesn't matter now)

ABC123 , AFG
ABC123 , AFG
ABC123 , BGH
ABC123 , BGH
ABC123 , CDD

"CDD" has the highest priority and therefore ALL with the same articlenumber should use that tod.

The existing function uses a cursor and loops through a recordset and updates every row with the same articlenumber as the current row with the tod with the highest priority (of the ones read) with the same articlenumber.

One update per row takes "forever" to run...

I figured it would be possible to select the tod with the highest priority for one articlenumber into a temp table and then do ONE update to set the tod on all rows...

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Can't Use Cursor With SP
Hi

I have a SP and in it I call another SP which returns one row in one column, I need to concatenate the value (varchar) to the query in the first SP.
I tried to use cursor with FAST_FORWARD to fetch the result and concatenate it, but I get an error, here is what I tried:

DECLARE Cur CURSOR FAST_FORWARD
FOR SP_Something @SomeValue

So is it possible to use cursor on SP ? And if it's possible so how ???

Thanks,

Inon.

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Get Value From CURSOR
I'm writing a stored procedure that involves looping through a recordset and using the values from the recordset as parameters for a second stored procedure. Here's what I've got so far...

My question is, how do I get the value out of the Cursor? There's only one field.

Declare @Day as int
Declare @Plant as varchar(30)

SET NOCOUNT ON

CREATE Table #Temp (Facility varchar(30), ProductCategory nvarchar(3), Target int, Quantity int, Percentage decimal(10,2), Production_Date smalldatetime,As_Of_Time smalldatetime)

Declare Facility_Cursor CURSOR
For Select Distinct(Facility) From ProductionHistory
OPEN Facility_CURSOR
Declare @Facility_Cursor as sysname

FETCH NEXT From Facility_CURSOR into @Facility_Cursor

WHILE @@FETCHSTATUS = 1

--YESTERDAY
Set @Day = -2

Insert Into #Temp
exec sp_GetDailyProductionByPlantAndCategory @Day, @Facility, 'NAP'

--TODAY
SET @Day = -1
Insert Into #Temp
exec sp_GetDailyProductionByPlantAndCategory @Day, @Facility, 'NAP'

FETCH NEXT FROM Facility_CURSOR into @Facility_Cursor

CLOSE Facility_Cursor
DEALLOCATE Facility_CURSOR

SET NOCOUNT OFF

Select * From #Temp ORDER BY Production_Date, Facility, ProductCategory DESC

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How To Do This Without Using A Cursor?
I am in the last stages of designing a forecasting "engine" for my company,
and I'm stuck on something that seems simple in comparison to everything
else I've done so far.

I have product ABC, and it's total sales forecast is 15 units.
I split the forecast into 2 different locations, based on an established percentage. In this case, I'll say 67% in location 'OH', and 33% in location 'AL' That's 10 units 'OH' and 5 units 'AL'. Then I get my actual orders by location, and compare them to the forecast.

If the orders exceed the forecast, I'll use orders, otherwise, I use forecast. Whenever I do that, I need to reduce the forecast for the other location, in order to keep the total forecast of 15 whole. (It is not possible for total orders to exceed total forecast, I've already dealt with that.)


CREATE PROCEDURE tempSelect
AS

CREATE TABLE #tmpTest (
parent char(2),
proj_ship real,
open_ord real,
)

insert into #tmpTest (parent, proj_ship, open_ord)
select 'OH', 10, 4

insert into #tmpTest (parent, proj_ship, open_ord)
select 'AL', 5, 7

SELECT PARENT, 'UNITS' = ???
FROM #TMPTEST

DROP TABLE #TMPTEST
GO


I need help with '???' in the query.

The result set I am looking for is:
OH 8
AL 7

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Trying To NOT Use A Cursor...
I need to write a sproc to supply records for a report. The boss has asked
"Of all the tons on order right now, how much is already in inventory, and how much needs to be produced." And "Apply the same logic to just the orders that came in yesterday." It would have been easy, if he hadn't asked for the second part, because now I have to look at each product on each order, rather than comparing total orders for a product to total available inventory.

Here's some sample data for what I need to do:


CREATE TABLE ORDER_ITEM (
ORDER_NUM VARCHAR(10),
SHIP_DATE SMALLDATETIME,
PRODUCT VARCHAR(10),
ORD_TONS REAL)

INSERT INTO ORDER_ITEM (ORDER_NUM, SHIP_DATE, PRODUCT, ORD_TONS)
SELECT '001', '3/1/2006', 'ABC', 4 UNION ALL
SELECT '002', '3/4/2006', 'ABC', 2 UNION ALL
SELECT '002', '3/4/2006', 'DEF', 6 UNION ALL
SELECT '003', '3/7/2006', 'DEF', 8

CREATE TABLE PROD_INVENTORY (
PRODUCT VARCHAR(10),
INV_TONS REAL)

INSERT INTO PROD_INVENTORY (PRODUCT, INV_TONS)
SELECT 'ABC', 5 UNION ALL
SELECT 'DEF', 13



The final recordset needs to be something like:

PRODUCT ORDER_NUM ORD_TONS SFI SFP END_INV
ABC 001 4 4 0 1
ABC 002 2 1 1 0
DEF 002 6 6 0 7
DEF 003 8 7 1 0


SFI = Sales from Inventory
SFP = Sales from production

I need a little help in how to do a running inventory balance (END_INV)
for each item. Once I have that, then I can calculate SFI and SFP.
I could figure out how to do it with a cursor, but it
would probably be pretty slow. I'll have about 10,000 records to sort thru,
and of course there will be more columns than what I show here.

Any ideas would be appreciated.

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