How To Determine If A Cursor Is Already Declarated ?
Dec 28, 1999How to determine if a cursor is already declarated ?
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Transact SQL :: STATIC Defines A Cursor That Makes Temporary Copy Of Data To Be Used By Cursor
Aug 12, 2015 In MSDN file I read about static cursor
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.
Dynamic Cursor Versus Forward Only Cursor Gives Poor Performance
Jul 20, 2005Hello,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
View 1 Replies View RelatedCould Not Complete Cursor Operation Because The Set Options Have Changed Since The Cursor Was Declared.
Sep 20, 2007I'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
Join Cursor With Table Outside Of Cursor
Sep 25, 2007part 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?
Cursor Inside A Cursor
Oct 5, 2004I'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
Client Side Cursor Vs Sever Side Cursor?
Jul 20, 2005I 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
View 1 Replies View RelatedHow To Determine The Value For The Bar?
Jan 22, 2008Hi all,
How to determine the value for the bar in Neural Network Viewer? I know the value is displaying in the tooltips when we pointing to the bar in the table but i don't know how to get them. So where can i get those of calculation or data of score, probability of value1 and 2, and lift for value1 and 2 ? Is it get from the Microsoft Neural Network Content Viewer? which column and how to calculate? If not, please advise.
Hope my question is clear.
I am looking forward to hearing from you shortly and thanks a lot in advance.
Thanks!
With best regards,
Yours sincerely,
xuenly
Determine Next Available Order ID
Sep 21, 2006I am trying to determine the next available order id using the method below. It works provided the table has a record in it. If it doesn't I get the error "Input string was not in a correct format." I am certain that it is because the query is returning a value of NULL. How can get around that or check for the NULL value?' Establish data connection...Dim sqlConn As New SqlConnection(ConfigurationSettings.AppSettings("connectionstring"))'Determine order id number...Dim order_id As IntegerDim strSQL As StringstrSQL = "Select MAX(order_id) from mkt_order"Dim sqlCmd As New SqlCommand(strSQL, sqlConn)Dim sqlDA As New SqlDataAdapter(sqlCmd)Dim sqlDS As New DataSetsqlDA.Fill(sqlDS, "item")If sqlDS.Tables(0).Rows.Count <> 0 Thenorder_id = Convert.ToInt32(sqlDS.Tables(0).Rows(0)(0).ToString()) + 1Elseorder_id = 1End If
View 1 Replies View RelatedHow To Determine Cause Of Timeout?
Aug 3, 1999Good day,
We have a web application (ASP) running on SQL Server 7.0.
Recently, the users are getting quite a lot of timeouts on
the database:
Microsoft OLE DB Provider for ODBC Drivers error '80040e31'
[Microsoft][ODBC SQL Server Driver]Timeout expired
The database is not supposed to be doing too much work, so I can't
understand why these timeouts are occuring. How can I determine
the cause of the timeouts?
The cause could probably anything from a trigger that's taking
too long, a query that's taking too long, or simply bad database design.
I've looked at SQL Server's Profiler, but could not yet use it
successfully to give me any hints of what could cause the timeouts.
Any ideas of how I can use Profiler, Performance Monitor, or any other
tool(s) to see what is happening in the background in the database,
i.e. how much processing a trigger is using, etc.
Thanks very much!
---
Gert Lombard
OSI Airport Systems
South Africa
How To Determine Frequency Of
Dec 28, 2006I'm new to full text catalogs and we have a vendor who's code utilizes them. The database server is SQL 2005 and I am noticing the following message in the SQL log every minute.
Changing the status to MERGE for full-text catalog "ResearchCatalog" (5) in database "DBA_Test" (11). This is an informational message only. No user action is required.
A SQL job is running the following command every minute.
exec sp_fulltext_catalog 'ResearchCatalog', 'start_incremental'
What is the typical frequency for running an incremental?
Can the messages be suppressed?
Thanks, Dave
How To Determine Dbas?
Jul 23, 2005for sql servers how can i determine who [what accounts] are the dbas?
View 1 Replies View RelatedHow To Determine How Much RAM My SQL Server Is Actually Using???
Jul 20, 2005I've been doing a lot of reading on this and my head is starting tohurt! It seems to be quite a feat to work out how much memory isactually being used by our server.I'm running W2K advanced server with SQL 2000 EE, 8GB of RAM, a min of4GB and a max of 6GB is assigned to SQL server.I'm trying to work out whether we've assigned enough or toomuch/little memory to SQL server. My first thought was to let SQLdymanically manage its own memory and see how much it uses, of coursewhen AWE (/3GB /PAE) is enabled it will just use all that isavailable.In perfmon "target server memory" = 6.1GB, "total server memory" =6.1GB, "total pages" = 768000 ( x 8KB = 6.1GB).My second thought was to use "total pages" - the average "free pages"= average mem used, therefore giving me the average amount of memoryused by SQL. I found out that SQL uses a min of 4GB (the min weassigned) and the max of all the memory, 6GB.Is there an easier way of finding out how much memory is actually usedin this situation or is going by the above average the best way?What i'm unsure about is will SQL just use all memory assigned to ituntil it has the whole DB in memory? 20GB including indexes etc....Any help would be greatly apprechiated.
View 2 Replies View RelatedHow To Determine When And If SQL Agent Job Will Run Again?
Dec 1, 2006I need to determine when (maybe) and if (definitely) a SQL Agent job will run again. I need to maintain a table of the next pending execution for each job. I need to be able to update this table from within a SQL Agent job, but preferably from within an executing SSIS package in the job. Is this possible and if so, any suggestions on how?
Thanks
Determine That This Is Deterministic
May 3, 2008Hi all... This is the definition on the M/S site:
"Deterministic functions always return the same result any time they are called with a specific set of input values and given the same state of the database. Nondeterministic functions may return different results each time they are called with a specific set of input values even if the database state that they access remains the same."
Good... straight forward, right? Ok.... try entering thses command seperately:
Create Table Readings (ReadingDate DateTime Not Null);
Create Function [dbo].[funct_SameDate](@datReadingDate Datetime)
Returns DateTime
As
Begin
return @datReadingDate;
End
Alter table Readings add
[TempColumn] as (dbo.[funct_SameDate](ReadingDate)) PERSISTED NOT NULL;
Error on last command returns:
Computed column 'TempColumn' in table 'Readings' cannot be persisted because the column is non-deterministic.
Can someone please explain this to me? The same value is always being returned.
This does work:
Create Table Readings (ReadingDate DateTime Not Null);
Alter table Readings add [TempColumn] as (ReadingDate) PERSISTED NOT NULL;
I obviously want to do more things inside the function, but I can't get by the first step.
Any suggestions?
Thanks!
Forch
Determine First Row Of New Page
Dec 27, 2007Hi,
I have a report that has a table with detail grouping. This table shows the sales by day for each product. The users only want to see the date field for the first item in the group. After that, they do not want to display this field (to reduce the data on the report). However, when the data wraps to a second page, they want the date to appear on the first row of the new page.
Is there any way to determine if a row is the first row on a page?
I tried using the RowCount, but that continues from the previous page.
Any thoughts?
Thanks!
David.
Determine A Role
Jun 18, 2007hi,
since I am kind o'new with SQL, I preffer get an advice fro you pro's: I created an application which performs access to a database on an SQL server. the application will be used by a few different users, each on a different computer. the application calls stored procedures, updatesinserts records in tables on the SQL and delete rows. what would be the best role to define the users activity ? How do I limit their activity ONLY to the specified actions ?
Determine Next Order Id
May 17, 2007I'm working on a sproc that determines the next order id for a specified customer. The table has
custid int,
ordernum varchar(10)
Data is:
1000, 1000-001
1000, 1000-002
1001, 1001-001
1000, 1000-003
I need to know the next ordernum for the specified custid. For example, GetNextOrderNum(1000) should return 1000-004. GetNextOrderNum(1002) should return 1002-001 (since there aren't any orders yet).
I honestly don't know where to begin.
Can someone please help?
Need To Determine Which Db Is Pricipal
Jun 6, 2007Hi All,
i am working with database mirroring and i need to be able to determine which database will be principal.
for example if server A is principle and server B is mirrored and server A is down, then server B take owner and become principle, after fixing server A i want it to be principle again,
is it possible ??
How To Determine Last LSN For Database
Feb 13, 2008
What is the most reliable way to determine the last LSN of a database? I've looked in sys.database_files to no avail. I've also looked in msdb.dbo.backupset which is accurate but only based on backups already performed not the current state of the database.
-joe
INSERT And Determine ID Question
Dec 11, 2006With an INSERT statement I add a record to a table.
Then I want to get the (autonumber) ID of the newly created record.
What is the fastest and best way to do this?
Determine Service Pack In 7.0?
Apr 15, 2002I need to determine which service pack we are running on our sql servers. I run SELECT @@VERSION and get it tells me that we are running 7.00.1020. I have a listing from google that tells me the value for each service pack, but my version doesn't match anything on the list.
Can you tell which service pack I am running based on the results of my query?
Thanks!
How To Determine When To Re-Index Programmatically?
May 13, 2002Great Monday Morning to one and all,
Setup: SQL7 w/SP4 running on W2K Pro
Table in Question:
I have a system that processes inserts that originate from automatic data collection subsystems on manufacuturing cells. The system processes about 2500 records a day. The system is isolated with no ready support or attention. My goal is to automate any and every reasonable admin task. My present activity centers on re-indexing the main table (receives the data from the inserts, supplies the data for web based reporting).
The table - tb_production_log - receives inserts that are time stamped and bear a Machine_id. The table has a clustered index built on the Machine_id (int) and Date_time (time of data's acquisition). The table only receives Inserts, the records are never Updated. No inserts are out of time sequence (no older records ever have to be 'wedged' in amongst existing records). Ulitmately, the table is tested daily for records with age > 365 days. Such records are Deleted.
For the past week, I have been running a monitoring stored procedure on my test box to track the fragmentation of the tb_production_log table. It's based on DBCC SHOWCONTIG with some extra tests. After capturing the SHOWCONTIG data, the sp runs a test query against the table to emulate a typical User report. I track the time this query takes. The query covers records over the last 7 days. (approx. 17,500 records involved). In addition, I track the time it takes Inserts to run. Inserts are done in batches from an external app. I get a RecordsPerSecond data point for each batch.
How To Determine When To Re-Index Programmatically?
May 13, 2002Great Monday Morning to one and all,
Setup: SQL7 w/SP4 running on W2K Pro
Table in Question:
I have a system that processes inserts that originate from automatic data collection subsystems on manufacuturing cells. The system processes about 2500 records a day. The system is isolated with no ready support or attention. My goal is to automate any and every reasonable admin task. My present activity centers on re-indexing the main table (receives the data from the inserts, supplies the data for web based reporting).
The table - tb_production_log - receives inserts that are time stamped and bear a Machine_id. The table has a clustered index built on the Machine_id (int) and Date_time (time of data's acquisition). The table only receives Inserts, the records are never Updated. No inserts are out of time sequence (no older records ever have to be 'wedged' in amongst existing records). Ulitmately, the table is tested daily for records with age > 365 days. Such records are Deleted.
For the past week, I have been running a monitoring stored procedure on my test box to track the fragmentation of the tb_production_log table. It's based on DBCC SHOWCONTIG with some extra tests. After capturing the SHOWCONTIG data, the sp runs a test query against the table to emulate a typical User report. I track the time this query takes. The query covers records over the last 7 days. (approx. 17,500 records involved). In addition, I track the time it takes Inserts to run. Inserts are done in batches from an external app. I get a RecordsPerSecond data point for each batch.
How To Determine Service Pack?
Jun 5, 2002Hi,
I am trying to determine what service pack I am running on a SQL 7 server. Can somebody tell me how to do this?
I have an article from technet showing me how to do it for SQL 6.5 but not 7. I assume it is the same method but I need to know which product version number relates to which service pack.
Thanks
How To Determine The Edition Installed
Feb 28, 2002Dear all,
Please tell me how to determne the editiion of mssql installed. I can only know the version but cannot know the edition.
Regards,
Simon
How To Determine Login Name From User
Apr 13, 1999How do I determine the Login name from the user name, in SQL?
For example, I have a Login called Accounting with users Bob and Sue. How do I know from Bob or Sue's user name that they are members of the Accounting Login?
I am using NT Authentication.
Thanks!
Need To Determine If Records Are Already In Database
Feb 21, 2001Problem: I can add 4 items to a SQL 7.0 database but I need to redirect the user if all 4 items exist in the same Record elsewhere in the Database.
Clearly I need some kind of statement like "if category1 = var1 AND category2 = var 2 AND..." but don't know where to put it.
Code:
strSQL = "SELECT * FROM tblUserQuarter"
Set objRS = Server.CreateObject("ADODB.Recordset")
objRS.Open strSQL, objConn,adOpenStatic , adLockOptimistic
'Insert choices from report.asp into tblUserQuarter
objRS.AddNew
objRS("cboFY") = Request.Form("cboFY")
objRS("Quarter") = Request.Form("Quarter")
objRS("ID") = Request.Form("ID")
objRS("Report") = Request.Form("Report")
objRS.Update
objRS.Close
Set objRS = Nothing
objConn.Close
set objConn = Nothing
How Can I Determine An Index Exists?
Dec 6, 1999Hi,
I'm trying to run a script to add an index to a table. The index might already exist so I want to drop it 1st if it does.
Is there an equivalent to the following that I use for tables for indexes?
if exists (select * from sysobjects where id = object_id('dbo.tblFred') and sysstat & 0xf = 3)
drop table dbo.tblFred
Thanks,
Martin
How To Determine Space Used / Free
Apr 25, 2001I would like to know how to determine how big log and data space is, and how much of this space is free. I would like to create a script to warn me when less than 20% free space is left in log as well as data.
Ruud
How To Determine Is Column Is A Foreign Key
Sep 25, 2001Do anyone know how to find out programmatically is a particular column in
a table is being used as a foreign key?
Thanks,
Kurt
How To Determine Is Column Is A Foreign Key
Sep 25, 2001Do anyone know how to find out programmatically is a particular column in
a table is being used as a foreign key?
Thanks,
Kurt
Determine Days Of The Year
Jun 16, 2007Hi there, is that any function in ms sql server 2000 where if i pass a date or a year then it could gives me the total days of year from the parameter?
in mySQL got select DAYOFYEAR(date);
can some one guide me on this please...i need to use it for a leap year function for my SP!