I am trying to build a Windows application using: Windows XP Pro ; VS Pro 2005, C# and SQL2005.
I have a database with two tables:
eg
1) myGameRecency which contains columns : GameId , Date, Zero, One, Two, Three
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
I also wish to Fetch the GameId which corresponds to the current date....known in the programme as @currentTimeDrawn
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:
I am tring to find out wheather a SQL Agent job is running. I was wanting to put the result from sp_help_job into a cursor and check whether @@fetch_status was successful. if it fails then job is not running
the below code fails because when declaring a cursor expects a select statement.
is there anyway to get result from a sp into a cursor thanks
declare @sql varchar(100) set @sql = 'sp_help_job null, ''event_167'', @job_aspect = ''job'', @execution_status = 1' declare Job_Cursor cursor for sp_help_job @job_name = 'some_job_name', @job_aspect = 'job', @execution_status = 1 open Job_Cursor fetch next from Job_Cursor if @@fetch_status <> 0 begin print 'Job is not runnning' end if @@fetch_status = 0 begin print 'Job is runnning' end close Job_Cursor deallocate Job_Cursor
an example for the pb 1)First i have created a dynamic cursor :
DECLARE authors_cursor CURSOR DYNAMIC FOR Select DISTINCT LOCATION_EN AS "0Location" from am_location WHERE LOCATION_ID = 7 OPEN authors_cursor FETCH first FROM authors_cursor
2)The result for this cursor is for expamle 'USA'.
3) If now i do an update on that location with a new value 'USA1'
update am_location set location_en = 'USA1' WHERE LOCATION_ID = 7
4)now if i fetch the cursor , i''ll get the old value (USA) not (USA1).
If i remove DISTINCT from the cursor declaration , the process works fine .
An example for my pb 1) Created a dynamic cursor : DECLARE cursor_teste CURSOR DYNAMIC FOR Select DISTINCT name from table WHERE ID = 1 OPEN cursor_teste FETCH first FROM cursor_teste 2)The result for this cursor is for example 'teste'. 3) If now i do an update on that name with a new value 'teste1' than if i fetch the cursor , i''ll get the old value (teste) .
any idea how to make a select distinct result in a dynamic Cursor?
Here the SELECT query is fetching the records corresponding to ITEM_DESCRIPTION in 5 separate transactions. How to change the cursor to display the 5 records in at a time in single transactions.
CREATE TABLE #ITEMS (ITEM_ID uniqueidentifier NOT NULL, ITEM_DESCRIPTION VARCHAR(250) NOT NULL)INSERT INTO #ITEMSVALUES(NEWID(), 'This is a wonderful car'),(NEWID(), 'This is a fast bike'),(NEWID(), 'This is a expensive aeroplane'),(NEWID(), 'This is a cheap bicycle'),(NEWID(), 'This is a dream holiday') --- DECLARE @ITEM_ID uniqueidentifier DECLARE ITEM_CURSOR CURSOR
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.
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.
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
STATIC Defines a cursor that makes a temporary copy of the data to be used by the cursor. All requests to the cursor are answered from this temporary table in tempdb; therefore, modifications made to base tables are not reflected in the data returned by fetches made to this cursor, and this cursor does not allow modifications
It say's that modifications is not allowed in the static cursor. I have a questions regarding that
Static Cursor declare ll cursor global static for select name, salary from ag open ll fetch from ll
while @@FETCH_STATUS=0 fetch from ll update ag set salary=200 where 1=1
close ll deallocate ll
In "AG" table, "SALARY" was 100 for all the entries. When I run the Cursor, it showed the salary value as "100" correctly.After the cursor was closed, I run the query select * from AG.But the result had updated to salary 200 as given in the cursor. file says modifications is not allowed in the static cursor.But I am able to update the data using static cursor.
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
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
I need to send the result of a procedure to an update statement.Basically updating the column of one table with the result of aquery in a stored procedure. It only returns one value, if it didnt Icould see why it would not work, but it only returns a count.Lets say I have a sproc like so:create proc sp_countclients@datecreated datetimeasset nocount onselect count(clientid) as countfrom clientstablewhere datecreated > @datecreatedThen, I want to update another table with that value:Declare @dc datetimeset @dc = '2003-09-30'update anothertableset ClientCount = (exec sp_countclients @dc) -- this line errorswhere id_ = @@identityOR, I could try this, but still gives me error:declare @c intset @c = exec sp_countclients @dcWhat should I do?Thanks in advance!Greg
I have an Execute SQL Task that executes "select count(*) as Row_Count from xyztable" from an Oracle Server. I'm trying to assign the result to a variable. However when I try to execute I get an error: [Execute SQL Task] Error: An error occurred while assigning a value to variable "RowCount": "Unsupported data type on result set binding Row_Count.".
Which data type should I use for the variable, RowCount? I've tried Int16, Int32, Int64.
---------------------------------------------------------------------- I executed it in my SQL Server Management Studio Express and I got: Commands completed successfully. I do not know where the result is and how to get the result viewed. Please help and advise.
HI, I ran a select * from customers where state ='va', this is the result...
(29 row(s) affected) The following file has been saved successfully: C:outputcustomers.rpt 10826 bytes
I choose Query select to a file then when I tried to open the customer.rpt from the c drive I got this error message. I am not sure why this happend invalid TLV record
As the topic suggests I need the end results to show a list of shows and their dates ordered by date DESC. Tables I have are structured as follows:
SHOWS showID showTitle
SHOWACCESS showID remoteID
VIDEOS videoDate showID
SQL is as follows:
SELECT shows.showID AS showID, shows.showTitle AS showTitle, (SELECT MAX(videos.videoFilmDate) AS vidDate FROM videos WHERE videos.showID = shows.showID) FROM shows, showAccess WHERE shows.showID = showAccess.showID AND showAccess.remoteID=21 ORDER BY vidDate DESC;
I had it ordering by showTitle and it worked fine, but I need it to order by vidDate. Can anyone shed some light on where I am going wrong?
I am trying to code a WHERE xxxx IN ('aaa','bbb','ccc') requirement but it the return values for the IN keyword changes according to another column, thus the need for a CASE function.
WHERE GROUP.GROUP_ID = 2 AND DEPT.DEPT_ID = 'D' AND WORK_TYPE_ID IN ( CASE DEPT_ID WHEN 'D' THEN 'A','B','C' <---- ERROR WHEN 'F' THEN 'C','D ELSE 'A','B','C','D' END )
I kept on getting errors, like
Msg 156, Level 15, State 1, Line 44Incorrect syntax near the keyword 'WHERE'. which leads me to assume that the CASE ... WHEN ... THEN statement does not allow mutiple values for result expression. Is there a way to get the SQL above to work or code the same logic in a different manner in just one simple SQL, and not a procedure or T-SQL script.
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?
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 set @start = '2015-03-22 00:00' -- this should be a Sunday set @end = '2015-03-28 23:59' -- this should be the following Saturday
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.
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
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
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.
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
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...
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
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.
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
Declare c_cursor Cursor Scroll For Select card_id From cardcreator where card_every_cat = @cat_id Open c_cursor /* Scroll to the randomly selected row and populate into output parameters */ Fetch absolute @iRandomRecord From c_cursor Into @vi_cardid1 print @vi_cardid1 /*Need to check to fetch status if you have reached end of record set begin from first */ select @@fetch_status if (@@fetch_status = 0) Begin Fetch next from c_cursor into @vi_cardid2 print @vi_cardid2 End if (@@fetch_status = 0) Begin Fetch next from c_cursor into @vi_cardid3 End print @vi_cardid3
/* Close and deallocate cursor */ Close c_cursor Deallocate c_cursor
I need to have atleast three records. But if random value starts the cursor at the end, the cursor would not wrap to the beginning.
Is there a way to wrap the cursor to begining if its status is not zero.
