SQL 7 Hanging With Large In() Statement
Mar 2, 2004
For MS SQL 7, an error occurs as shown at bottom.
Basically a piece of embedded sql is being sent to the db which has a syntax like:
select distinct WC_REFERENCE_MANAGER.logicalname,
WC_REFERENCE_MANAGER.referenceid,
wc_site.doclistid,
WC_REFERENCE_MANAGER.shared,
WC_REFERENCE_MANAGER.languageid
from wc_content inner join wc_content_ref on wc_content.contentid = wc_content_ref.documentid
inner join wc_reference_manager on wc_content_ref.referenceid = wc_reference_manager.referenceid
inner join wc_site on wc_reference_manager.referenceid = wc_site.referenceid
where xmlid = @p1 and contains(xmldata, @p2)
and wc_reference_manager.languageid = @p3
and wc_site.siteid = @p4
and wc_site.sectionid IN (
Followed by over 15000 numbers
(dont ask - its a generic product with a generic db design behind it!).
Any comments apart from rewrite the query (which isnt an option).
The error is :
02/27/04 14:30:05 Stack Overflow Dump not possible - Exception c00000fd E at 00499f17
2004-02-27 14:30:05.93 spid8 Address=499f17 Exception Code = c00000fd
2004-02-27 14:30:05.93 spid8 eax=394d29f4 ebx=00000000 ecx=394d29f4 edx=0000000d
2004-02-27 14:30:05.93 spid8 esi=394d29f4 edi=433a499c eip=00499f17 esp=3c263000
2004-02-27 14:30:05.93 spid8 ebp=3c26300c efl=00010a97
2004-02-27 14:30:05.93 spid8 cs=1b ss=23 ds=23 es=23 fs=3b gs=0
2004-02-27 14:30:05.93 spid8 Input Buffer 250651 bytes -
2004-02-27 14:30:05.93 spid8
2004-02-27 14:30:05.93 spid8 s p _ p r e p a r e & @ T @ p 1 i n t , @ p 2 n v a r c h a
2004-02-27 14:30:05.93 spid8 r ( 4 0 0 0 ) , @ p 3 i n t , @ p 4 i n t c s e l e c t
2004-02-27 14:30:05.93 spid8 d
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Aug 29, 2015
Using merge replication + web synchronization, I have a situation when there are large amount of data changes to upload to the publisher, Merge agent would create a large request and send it over. The publisher gets it and is able to work on it. After few minutes it has finished but (I assume) the connection has been dropped. At the subscriber's side, it appears that the merge agent is hung. The output would look like something like this:
Upload request size is XXX bytes.
Uploaded a total of 100 chunks.
Uploaded a total of 200 chunks.
Uploaded a total of 211 chunks.
The request message was sent to [URL] ....
Normally, when the publisher finishes working, the merge agent then continues processing. But when it takes more than few minutes (it seems to break about at 2 or 3 minutes), merge agent will hang as long as the InternetTimeout setting is (currently 20 minutes) before finally failing and retrying.
But that's not right. The publisher was done and can't communicate back to the merge agent (presumably because the connection was dropped). As a result, merge agent will try to re-enumerate changes on top of giving appearance that it's hung.
I've already fiddled with settings such as MaxUploadChanges, UploadGenerationsPerBatch, UploadReadChangesPerBatch, and UploadWriteChangesPerBatch. However, none of those setting actually ensure that the request message is too large. It has worked in breaking up the changes into separate batches (e.g. processing a single table rather than all tables) which results in more frequent updates and thus avoid the problem.
However, when a single table has several changes, it is still lumped into one large request which then takes more than 2-3 minutes to process on publisher's side and thus I still end up with the same symptom of merge agent hanging.
Is there anything else I could try to get merge agent to keep its connection alive even during processing a large request?
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Jul 13, 2007
I have an SSIS package (SQL 2005 SP2 and Visual Studio SP1) that does the following:
OLE DB Source --> Conditional Split --> OLE DB Command #1 --> OLE DB Command #2
The source reads from database A. Each row is variable-width and up to several KB wide, including two ntext columns.
Command #1 executes a stored proc in db A, using a bunch of inputs and two output parameters.
Cmd #2 executes an update in db B, using the two output params from cmd #1 as inputs.
When the rowset size is small, around 500, everything works fine.
However, when the rowset size is larger, around 5000, SSIS hangs when trying to execute cmd #2. The profiler shows that none of the cmd #2 updates are ever executed. No error messages are produced, and the connection never times out -- it just hangs forever.
If I replace the cmd #2 updates with a simple select, everything works fine. If I replace it with a stored proc that does an update, it hangs.
The work-around I came up with was to create a new table in db B, and do inserts into the table, but unless I'm missing something, this still seems like a bug...
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Mar 16, 2006
Is there a better way to do this? or is basically how you would write a dynamic SQL Stored Procedure? Also, is this code vulnerable to SQL injection? All of the Parameters are being passed in by a SQL DataSource.
set ANSI_NULLS ONset QUOTED_IDENTIFIER ON
go
-- =============================================-- Author: <Author,,Name>-- Create date: <Create Date,,>-- Description: <Description,,>-- =============================================
CREATE PROCEDURE [dbo].[pe_getAppraisals]
-- Add the parameters for the stored procedure here@PType nvarChar(50),@Client nvarChar(50),@City nvarChar(50),@ApptDate nvarChar(50),@OrderDate nvarChar(50),@Status nvarChar(50),@AType nvarChar(50),@Text nvarChar(50),@OrderBy nvarChar(50),@SortDir nvarChar(4),@PageSize INT,@PageNum INT
AS
DECLARE
@l_Select nvarChar(4000),@l_From nvarChar(4000),@l_SetWhere bit,@l_PType nvarChar(100),@l_Client nvarChar(100),@l_City nvarChar(100),@l_ApptDate nvarChar(100),@l_OrderDate nvarChar(100),@l_Status nvarChar(100),@l_AType nvarChar(100),@l_Text nvarChar(4000),@l_SortDir nvarChar(4),@l_TotalRecords INT
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from-- interfering with SELECT statements.
SET NOCOUNT ON;
IF @OrderBy IS NULL SET @OrderBy = 'OrderDate'
IF @SortDir IS NULL SET @SortDir = 'DESC'
IF @SortDir = 'DESC' SET @l_SortDir = 'ASC'ELSE SET @l_SortDir = 'DESC'
--Initialize SetWhere to test if a parameter has Added the keyword WHERE
SET @l_SetWhere = 0
--Create WHERE portion of the SQL SELECT Statement
IF (@PType IS NOT NULL)BEGIN SET @l_PType = ' WHERE o.PropertyTypeID=' + @PType SET @l_SetWhere = 1EndELSE SET @PType = ''
IF (@Client IS NOT NULL)BEGIN IF @l_SetWhere = 0 BEGIN SET @l_Client = ' WHERE o.ClientID=' + @Client SET @l_SetWhere = 1 END ELSE SET @l_Client = ' AND o.ClientID=' + @Client ENDELSE SET @l_Client = ''
IF (@City IS NOT NULL)BEGIN IF @l_SetWhere = 0 BEGIN SET @l_City = ' WHERE o.City=''' + @City + '''' SET @l_SetWhere = 1 END ELSE SET @l_City = ' AND o.City=''' + @City + ''''ENDELSE SET @l_City = ''IF (@ApptDate IS NOT NULL)BEGIN IF @l_SetWhere = 0 BEGIN SET @l_ApptDate = ' WHERE o.ApptDate= ''' + @ApptDate + '''' SET @l_SetWhere = 1 END ELSE SET @l_ApptDate = ' AND o.ApptDate= ''' + @ApptDate + ''''ENDELSE SET @l_ApptDate = ''
IF (@OrderDate IS NOT NULL)BEGINIF @l_SetWhere = 0 BEGIN SET @l_OrderDate = ' WHERE o.OrderDate=''' + @OrderDate + '''' SET @l_SetWhere = 1 END ELSE SET @l_OrderDate = ' AND o.OrderDate=''' + @OrderDate + ''''ENDELSE SET @l_OrderDate = ''
IF (@Status IS NOT NULL)BEGINIF @l_SetWhere = 0 BEGIN SET @l_Status = ' WHERE o.StatusID=' + @Status SET @l_SetWhere = 1 END ELSE SET @l_Status = ' AND o.StatusID=' + @Status ENDELSE SET @l_Status = ''
IF (@AType IS NOT NULL)BEGIN IF @l_SetWhere = 0 BEGIN SET @l_AType = ' WHERE o.ReportID=' + @AType SET @l_SetWhere = 1 END ELSE SET @l_AType = ' AND o.ReportID=' + @ATypeENDELSE SET @l_AType = ''
IF (@Text IS NOT NULL)BEGIN IF @l_SetWhere = 0 BEGIN SET @l_Text = ' WHERE (o.FileNumber LIKE ''' + @Text + '%''' + ' OR o.LoanOfficer LIKE ''' + @Text + '%''' + ' OR o.Borrower LIKE ''' + @Text + '%''' + ' OR o.StreetAddrA LIKE ''' + @Text + '%''' + ' OR o.State LIKE ''' + @Text + '%''' + ' OR o.ContactName LIKE ''' + @Text + '%'')' SET @l_SetWhere = 1ENDELSE SET @l_Text = ' AND (o.FileNumber LIKE ''' + @Text + '%''' + ' OR o.LoanOfficer LIKE ''' + @Text + '%''' + ' OR o.Borrower LIKE ''' + @Text + '%''' + ' OR o.StreetAddrA LIKE ''' + @Text + '%''' + ' OR o.State LIKE ''' + @Text + '%''' + ' OR o.ContactName LIKE ''' + @Text + '%'')'ENDELSE SET @l_Text = ''
--Build the SQL SELECT Statement
SET @l_Select = 'o.OrderID AS OrderID, o.FileNumber AS FileNumber, o.OrderDate AS OrderDate, o.ClientID AS ClientID, o.ClientFileNumber AS ClientFileNumber, o.PropertyTypeID AS PropertyTypeID, o.EstimatedValue AS EstimatedValue, o.PurchaseValue AS PurchaseValue, o.LoanOfficer AS LoanOfficer, o.ReportFee AS ReportFee, o.FeeBillInd AS FeeBillInd, o.FeeCollectInd AS FeeCollectInd, o.CollectAmt AS CollectAmt, o.Borrower AS Borrower, o.StreetAddrA AS StreetAddrA, o.StreetAddrB AS StreetAddrB, o.City AS City, o.State AS State, o.Zip AS Zip, o.ContactName AS ContactName, o.PhoneA AS PhoneA, o.PhoneB AS PhoneB, o.ApptDate AS ApptDate, o.ApptTime AS ApptTime, o.AppraiserID AS AppraiserID, o.InspectionDate AS InspectionDate, o.DateMailed AS DateMailed, o.TrackingInfo AS TrackingInfo, o.ReviewedBy AS ReviewedBy, o.StatusID AS StatusID, o.Comments AS Comments, o.SpecialNotes AS SpecialNotes, o.EmailInd AS EmailInd, o.MgmtName AS MgmtName, o.MgmtContactName AS MgmtContactName, o.MgmtAddress AS MgmtAddress, o.MgmtPhone AS MgmtPhone, o.MgmtFax AS MgmtFax, o.MgmtFee AS MgmtFee, o.MgmtNotes AS MgmtNotes, o.LoginName AS LoginName, on1.NotesDesc AS PreNotesDesc, on2.NotesDesc AS PostNotesDesc, os.StatusDesc AS StatusDesc, ot.ReportDesc AS ReportDesc, ot.ReportFee AS ReportPrice, ot.ReportSeq AS ReportSeq, pc.PriceDesc AS PriceDesc, pt.PropertyTypeDesc AS PropertyTypeDesc, l.LoginName AS AppraiserName, l2.LoginName As ClientName'
SET @l_From = 'Orders AS o LEFT OUTER JOINOrderNotes AS on1 ON o.PreNotesID = on1.NotesID LEFT OUTER JOINOrderNotes AS on2 ON o.PostNotesID = on2.NotesID LEFT OUTER JOINOrderStatus AS os ON o.StatusID = os.StatusID LEFT OUTER JOINOrderTypes AS ot ON o.ReportID = ot.ReportID LEFT OUTER JOINPriceCodes AS pc ON ot.PriceID = pc.PriceID LEFT OUTER JOINPropertyTypes AS pt ON o.PropertyTypeID = pt.PropertyTypeID LEFT OUTER JOINLogins AS l ON o.AppraiserID = l.LoginID LEFT OUTER JOINLogins AS l2 ON o.ClientID = l.LoginID'
SET @l_TotalRecords = @PageSize * @PageNum
PRINT ' ORDER BY ' + @OrderBy + ' ' + @l_SortDir + ') ORDER BY ' + @OrderBy + ' ' + @SortDir
Execute('SELECT TOP(' + @PageSize + ') * FROM (SELECT TOP(' + @l_TotalRecords + ') ' + @l_Select + ' FROM ' + @l_From + @l_PType + @l_Client + @l_City + @l_ApptDate + @l_OrderDate + @l_Status + @l_AType + @l_Text + ' ORDER BY ' + @OrderBy + ' ' + @l_SortDir + ') AS rsltTbl ORDER BY ' + @OrderBy + ' ' + @SortDir)
END
Thank You,
Jason
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Jun 9, 2006
I have an application (Java) which is converting a relatively large XML files (>8MB) and generating SQL Insert statements from the contents. The resultant SQL from the transformation is quite large (nearly 8MB also) and I'm just wondering if people would have an opinion as to whether to just place the SQL into a command and execute it or write it out to a file and use BCP or something similar.
My preference would be to insert the data straight from the application to cut down on the number of "working parts" but I'm just worried there would be too many performance issues. For operational reasons I can't just pass the XML to SQL Server and let it process it. Anybody come across the same problem or have any opinions???
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May 26, 2004
I'm updating the name data in a large user database with the following UPDATE statement. The staging table was bulk loaded from a flat file and contains 10 million records. The production table (Recipients) contains 15 million records. This worked correctly but this single update statement took an entire ten hours to run which is way too long. While it was running the server was clearly 100% disk bound. CPU activity was near nothing. We've just upgraded RAM from 1GB to 2GB but we expect data sizes to grow significantly and we can't keep adding RAM. Absolutely nothing else is running on this server. Any ideas how I can optimize this?
UPDATE Recipients
SET [First] = Stages.[First]
, [Last] = Stages.[Last]
FROM
Stages
INNER JOIN Recipients ON
(Stages.UserName = Recipients.UserName
AND Stages.DomainID = Recipients.DomainID)
WHERE
(CASE WHEN Stages.[First] IS NULL THEN 1 ELSE 0 END
+ CASE WHEN Stages.[Last] IS NULL THEN 1 ELSE 0 END)
<=
(CASE WHEN Recipients.[First] IS NULL THEN 1 ELSE 0 END
+ CASE WHEN Recipients.[Last] IS NULL THEN 1 ELSE 0 END)
Text execution plan. I've made small annotations with the % information from the graphical execution plan:
|--Clustered Index Update(OBJECT:([Recipients].[dbo].[Recipients].[PK_Recipients]), SET:([Recipients].[First]=[Stages].[First], [Recipients].[Last]=[Stages].[Last]))
|--Top(ROWCOUNT est 0)
|--Sort(DISTINCT ORDER BY:([Bmk1000] ASC))
14% |--Merge Join(Inner Join, MANY-TO-MANY MERGE:([Stages].[DomainID], [Stages].[UserName])=([Recipients].[DomainID], [Recipients].[UserName]), RESIDUAL:(([Recipients].[UserName]=[Stages].[UserName] AND [Recipients].[DomainID]=[Stages].[Domain
25% |--Clustered Index Scan(OBJECT:([Recipients].[dbo].[Stages].[IX_Stages]), ORDERED FORWARD)
61% |--Clustered Index Scan(OBJECT:([Recipients].[dbo].[Recipients].[PK_Recipients]), ORDERED FORWARD)
Everything I've heard on the subject suggests you change the index scans to index seeks. How do I do this?
Any other tuning advice is greatly appreciated.
Here are the exact statements I used to create the tables:
CREATE TABLE Recipients (
ID INT IDENTITY (1, 1) NOT NULL,
UserName VARCHAR (50) NOT NULL,
DomainID INT NOT NULL,
First VARCHAR (24) NULL,
Last VARCHAR (24) NULL,
StreetAddress VARCHAR (32) NULL,
City VARCHAR (24) NULL,
State VARCHAR (16) NULL,
Postal VARCHAR (10) NULL,
SourceID INT NULL,
CONSTRAINT PK_Recipients PRIMARY KEY CLUSTERED (DomainID, UserName)
)
CREATE TABLE Stages (
ID INT NULL,
UserName VARCHAR(50) NOT NULL,
DomainID INT NULL,
Domain VARCHAR(50) NOT NULL,
First VARCHAR(24) NULL,
Last VARCHAR(24) NULL,
StreetAddress VARCHAR(32) NULL,
City VARCHAR(24) NULL,
State VARCHAR(24) NULL,
Postal VARCHAR(10) NULL
)
CREATE CLUSTERED INDEX IX_Stages ON Stages (DomainID, UserName)
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Mar 12, 2008
Hi all
I have a Large log table with large size data(I month only),If I run a query like SELECT * FROM <table_name> Server will go€¦very very slow€¦.
Because of large Data system is going slow€¦..
Please some body helps me with suggestion how get good performance.
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Sep 22, 2014
I am trying to use SQL to pull unique records from a large table. The table consists of people with in and out dates. Some people have duplicate entries with the same IN and OUT dates, others have duplicate IN dates but sometimes are missing an OUT date, and some don’t have an IN date but have an OUT date.
What I need to do is pull a report of all Unique Names with Unique IN and OUT dates (and not pull duplicate IN and OUT dates based on the Name).
I have tried 2 statements:
#1:
SELECT DISTINCT tblTable1.Name, tblTable1.INDate
FROM tblTable1
WHERE (((tblTable1.Priority)="high") AND ((tblTable1.ReportDate)>#12/27/2013#))
GROUP BY tblTable1.Name, tblTable1.INDate
ORDER BY tblTable1.Name;
#2:
SELECT DISTINCT tblTable1.Name, tblTable1.INDate
FROM tblTable1
WHERE (((tblTable1.Priority)="high") AND ((tblTable1.ReportDate)>#12/27/2013#))
UNION SELECT DISTINCT tblTable1.Name, tblTable1.INDate
FROM tblTable1
WHERE (((tblTable1.Priority)="high") AND ((tblTable1.ReportDate)>#12/27/2013#));
Both of these work great… until I the OUT date. Once it starts to pull the outdate, it also pulls all those who have a duplicate IN date but the OUT date is missing.
Example:
NameINOUT
John Smith1/1/20141/2/2014
John Smith1/1/2014(blank)
I am very new to SQL and I am pretty sure I am missing something very simple… Is there a statement that can filter to ensure no duplicates appear on the query?
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Jul 26, 2000
Hi,
I have a dts job that imports an IIS log(a text, space delimited file) into a table. I do only one, very simple activeX transformation, and other than that, i copy the columns right in. I am loading hundreds of these logs. DTS will load most of them just fine via a batch script, but it sometimes just stops and hangs. I get no errors, but my Server's cpu is at 99%. There are no locks anywhere in the database. Any clues as to why this happens? Since i don't ever get errors, i'm really getting nervous on this one.
thanks.
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Aug 3, 2000
My DTS job scheduled to run every half an hour is hanging for long.If I stop and restart it will succeed.It happened few times in the past where it ran for 3 days when nobody noticed,and still was executing!Any idea what could be the reason?
Thanks1
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Mar 7, 2000
I have a problem with a process hanging my SQL server machine and the only thing that can fix it is to reboot the machine.
The environment is SQL Server 7, NT sp5, dual processor 500MHZ, 1 gig Ram.
The applications are run through MTS written in VB all executing stored procedures.
The symptoms are that the process hangs with an open transaction and it can be seen through DBCC OPENTRAN. It can also be seen in MTS on the Transaction List screen and shows as Aborting. It seems to get stuck in that state.
The Kill command does not work on the process either. I have tried one fixs that I thought may be causing the error by setting the Max Degree of Paralelism in sp_configure to 1 but that does not fix the problem.
Has anyone seen this and/or have any ideas on how to fix/repair the problem.
Thanks
Greg Flynn
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Oct 18, 2000
One of my clients runs a report using Access retrieving data from SQL*server. Recently I often encounter a problem which makes the server hang.
The error messages are something like this, can somebody help?
SqlDumpExceptionHandler: Process 42 generated fatal exception c0000005 EXCEPTION_ACCESS_VIOLATION. SQL Server is terminating this process.
Error: 0, Severity: 19, State: 0
CImageHelper::GetSym Error - The specified module could not be found
Stack Dump being sent to H:MSSQL7logSQL00158.dmp
Thanks for any thoughts.
Roy
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Feb 12, 2001
I created a simple DTS which executes a VB standard exe that simply writes a string to an ascii file opened as append. SQL Server, the exe, and the ascii file are all on the same NT box (mine). If I execute the DTS myself the process works with no problems. When I attempt to execute the DTS via a job the job hangs with no apparent indications as to what may be the cause of the hangup. The SQL Server Agent is up and running and set to run under the system account. I have applied SQL Server SP3. The same problem was occuring prior to applying SP3.
Does anybody have any idea? All sugestions are appreciated.
Thanks in advance.
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Feb 22, 2001
We have just combined 3 sites into one server.
Two of the sites are serving fine, however one site has spids
that won't disconnect. By the end of the day there are over 600 spids
from that one site. At first we thought it was due to the ASP pages
had a db connect, but nothing that closed that db connection. But after
they modified the pages, we are still having the same problem. Checked
the webserver and they are identical to the other webservers.
Any ideas???
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Aug 21, 2000
Can anyone suggest what might be causing SQL Server 6.5 to hang?
The following messages were in the error log just before, but Books Online is not much help:
2000/08/21 10:35:20.90 ods Error : 17805, Severity: 18, State: 0
2000/08/21 10:35:20.90 ods Invalid buffer received from client.
2000/08/21 10:35:20.90 spid142 Process 142 entered sequencer without owning dataserver semaphore
there are then many messages like this one:
2000/08/21 10:36:21.06 ods Error : 17824, Severity: 10, State: 0
2000/08/21 10:36:21.06 ods Unable to write to ListenOn connection '.pipesqlquery', loginname 'E04180', hostname 'N90459'.
2000/08/21 10:36:21.06 ods OS Error : 109, The pipe has been ended.
and finally many more messages like this:
2000/08/21 10:51:20.75 ods Unable to connect. The maximum number of '750' configured user connections are already connected. System Administrator can configure to a higher value with sp_configure.
I don't think that simply increasing the number of user connections will help, but if anyone can throw some light on the cause of the first message I would be grateful.
Thanks,
John
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Feb 24, 2007
I have a scheduled job on my SQL Server 2000 that runs a DBREINDEX job on all the tables in my database. For some reason the system just hangs for hours now when it reaches one particular table. Can somebody please help me to correct the problem. Thank you all in advance.
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Feb 11, 2004
I am attempting a very simple bcp out to a text file in SQL 2000 for the first time. I've tried various syntax but the command consistently hangs no matter which i use. Nothing is being directed to the output log............
"bcp rfsspd..bcp_product_view out product.out -T -c -b500 -r>>test.log"
I have no problems with this command in SQL 6.5, could it be initial setup or config of 2000 or something really daft????
Any help greatly appreciated
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May 27, 2004
I have a job which is set of few Stored procedures,Usually it taked around 3-5 mins to complete the job.But somehow today the job was still executing even after 3:45:24 (yes 3 hrs,45 mins 25 secs)
WHen i tried to run the each procedure indivdually even its taking more time in the query analyzer.But when i try to execute those SPS as individual sql statements(it's step by step) they were working in reasonable time.What should be the reason for these SPs taking that much time?
Thanks.
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Sep 26, 2005
Hi,Periodically I run some very complex queries or stored procedures that"hang", and the bigger problem is that it locks up all of the databaseclients ie 50 users connecting to the db via a windows application.I never know when this is going to happen, but when it does it leavesall the users completely hung up.1. Can I avoid this?2. Is there a way to "clear" what I was doing so that I don't have torestart the SQL Server serive?thanks,
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May 25, 2006
When issuing the below command on any of our databases, it just hangsforever.ALTER DATABASE DBName SET READ_COMMITTED_SNAPSHOT ON;I realize that all connections expect the query window need to beclosed and that is the case I think, or at least we are resetting theweb server and still see the issue. The only way I have been able tofix it is to completely stop and restart the database server, thenissue the command and it returns immediately.This is a pain though and has to be done after hours. Is there a way toissue the command while the system is in use, possibly taking just thatdatabase offline (and not all other Dbs on the server) for a short timeand then returning it back to use using just scripting?
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Apr 4, 2001
I'm running 7.0 sp2,windows 2000, 1gig of ram, and a 933mhz cpu. Server has been very stable with no problems until I moved a 2gig table into the database. Query performance is excellent even table scans take less than 2 minutes. The problem is that once a table scan is performed on the table (I can't index for every possible query) the query finishes but the enterprise manager freezes on the server and users can no longer connect. I've set SQL server to have only 650 MB of ram and the rest is free, problem also existed when the memory was controlled entirely by SQL server.
My cache Hit Ratio was 97% and Cache flushes 0.0 (unfortunately these can't be checked when the problem exist because the box is frozen). I may have a concurrency issue but I'm not sure how to be positive. I don't want to just throw memory at the problem because I'm not sure the problem will be fixed.
Thanks for any help, Dave
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Jul 10, 2001
I was wondering if anyone could provide me with some help, to do with a problem we are experiencing with SQL Server 7 and Windows NT 4.
We have a database that we have imported data into and are trying to build some indexes on one of the tables. THe database size is about 4GB and the table contains 21,000,000 records. When we try to build the indexes SQL server starts off OK, but after about five minutes all drive activity stops, the server stops responsing, and we need to reboot.
The machine has 2 P3 800 processers and 768Mb of RAM. NT is running on SP6 and SQL Server is running on SP3. We were initially running with 512 MB of RAM, but increased it because we thought the memory was a problem. The Server is not a dedicated SQL Server.
I have used performance monitor when running the query in SQL Analyser and have noted the following counters:
Total Server Memory
This starts off about 208000KB and creeps up to about 625000KB just before the server hangs.
Free Memory Available
This starts off high and is about 6MB just before the server hangs.
Page Reads Sec
Normally 370 and 410
Page Writes Sec
157
Buffer Cache hit Ratio
99.1
I have tried setting the SQL Server max memory option to about 600 MB, and also let SQL Server dynamically allocate it.
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Jan 29, 2001
My overnight backups hang occasionally. I say this because there is no consistancy to when the routine will hang. It happens on the first step where it reindexes. The only user database on the server is about 12GB. The server is dedicated to SQL so nothing else runs on it. It has 2x 800 MHz processors with 2 G of ram of which 1.5 is allocated to SQL.
I can't trace the error because it happens before the report is written to. There are a few tables with a million plus records that take up almost a 1G per table.
It was my understanding that if users were in the database they would notice a big performance loss but that the backups would still run. Could it dying because of resource contention? I'm at a loss and really could use some input. I can't afford to go a whole weekend without a backup.
Is there a way for me to progammatically check who is the database prior to the job kicking off?
Any ideas as to what would cause an inconsistant hang of job is greatly appreicated.
Thanks,
Kelsey
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Mar 7, 2001
I have a daily task set up to email a report to me. When I go to look at the jobs it says it is still executing after a number of hours. I Can't stop the job with out stopping SQL Agent. I can't stop SQL Mail. If I stop the SQL Agent I can't start it again. I try to open Outlook (98) but it won't open either. Can't view the properties of Outlook either. Only way to cure this is to reboot the server. The account we are using to start SQL and SQL Agent is a FDomain Admins account. When I try to log off the server I get and error message saying olemainthreadwndname is not responding. Any help would be very much appreciated.
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Aug 18, 1998
I am using SQL Server 6.5 (service pack 3) on an NT 4.0 (service pack 3). It is being used as the back-end database server for Solomon IV (accounting package from Solomon Software). The client machines eventually lock-up after limited activity. The first user to lock seems to do so when they issue a save, once they are locked all other users lock. In SQL activity log the processes has several tables locked. If this process is killed, the other users seem to free up. The only error message found in SQL errorlog is an ODS Unable to write to ListenOn "pipe.sqlquery".
This message seems to have been occuring for some time though (prior to the lock-up problems).
The only thing (I`m aware of) that changed is many of the clients where put on a 100Mb LAN and the database was expanded from 1G to 2G because it ws almost full.
Any suggestions???
Thanks,
Chris Sheehy
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Feb 23, 2001
Has anybody encountered SQL SERVER 6.5 using 100% server CPU at startup with no other processes running on the NT server or accessing SQL Server?
I have tried starting up in minimal config mode to access the config values, but am having SQL Server hanging by that point as CPU usage has hit 100%
If anybody knows an answer please let me know.
Thanks
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Jul 1, 2004
Has anyone seen this?
When I exit out of Query Analyzer - it hangs and gives the following error message in Event logger
Hanging application isqlw.exe, version 2000.80.760.0, hang module hungapp, version 0.0.0.0, hang address 0x00000000.
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Nov 16, 2006
I have couple of SQL Server 2000 databases, each of them having the size around 200GB.
Recently I started experiencing some problems while inserting/updating data.
The problem is that it seems like it just hangind and it never finish the insert/update. I tried a simple update that affects just few records and it still hangs without any reason. There is no process locking the update process.
If I go to the database properties and increase the size of the database and then perform the update/insert all works well. My databases are set for unlimited growth , 10% file growth. I have plenty of space free on the disk.
In any case, it looks like it is not able to grow by itself.
I use SQL Server 2000, Enterprise Edition.
I would appreciate your help.
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Mar 29, 2007
Hi all,
I have a replication that worked for a couple of weeks without any problem. Since yesterday it is hanging. I am not aware of any changes done to the network or dataservers.
Dataservers are on 2005 SP1.
In the Replication monitor I see that the replication agent gets a 10 Minutes no activity seen message.
Therefor I started the merge process manually with Outputverboselevel 2.
It is hanging again, the outputfile tells me that sp_MSadd_merge_history90 is executed.
How to resolve this issue?
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Nov 10, 2007
I am running SQL Server 2000. When I go into Enterprise Manager and right click on a database, the hourglass appears and it doesn't return.
Similarly, when I run a query agains that database using a 3rd party tool similar to Query Analyzer it doesn't return.
I am new to SQL Server, have worked with other db's. Any clues as to how I can trouble shoot what is happening with my DB?
Thanks
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Jul 20, 2005
I'm running a DTS package on SQL Server. The source is MS Access and thetarget is Oracle.On a "Drop Table" command the process just hangs. There are no foreign keys onthe table. Several tables have already been processed successfully by thistime.I think I've ruled out corruption by dropping and recreating the targetdatabase on Oracle.Any ideas?M Man
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Oct 24, 2006
I am using a script to copy a number of packages (50+) from my desktop computer (file system) to a remote server (MSDB). The script works fine, but I can never get through the entire script without it hanging up. Some times only 3-4 packages get copied, sometimes a lot more. If I close the windows cmd window and restart at the point it hung, it continues, but usually hangs up again. If you repeat this 2 or 3 times, it eventually gets all of the packages copied. It does not always hang at the same point. I have tried doing the copies with "quiet" mode - overwriting the existing packages and I have tried first deleting the packages, then copying - doesn't make a difference. I have also tried moving the packages to a couple of different installations of SQL Server 2005 using the script - the remote one and the local one on my desktop - same thing on both.
If I have the script echo a message just after each copy, the message just after the last successful copy never appears (and I know the copy is successful, because I deleted all the packages first and have checked that the package is there after the script hangs).
The copy command I am using look like this:
dtutil /FILE %1 /Decrypt %3 /Encrypt SQL;%~n1;2;%3 /DestServer %4 /DestUser admincis /DestPassword %2 /quiet
ECHO Done deploying package %~n1
%1 is the file spec of the ".dtsx" file to be copied
%2 is the password of the user account on the server
%3 is the encryption password (same one used on both ends)
%4 is the name of the server being copied to
Any ideas???
Jane Gaby
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Aug 14, 2006
Hi
I set TransactionOption=Required for my SSIS package. In this package, 2 tasks are included,
one is execute sql (TransactionOption=supported)
2nd is DataTransformation Task (TransactionOption=Supported)
But it hangs on the execute sql task itself!
Didnt find any reason 4 it so far!
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