Strange Database Problem
Jan 7, 2008
I built an ASP.NET application that works with SQL Server Express 2005. I am using Typed Datasets to interact with the database, and everything works well on my staging server (Windows 2003).
However, when I deployed the application to the clients server, no updates actually work! I try adding new items through the interface to no avail. I try updating data through the interface and nothing works. The strange thing is, I get no errors!
Has anyone ever encountered this before?
Karls
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Jan 20, 2004
MY DATABASE FOR SHOPPING CART IS ACTING STRANGE IT HAS AUTOMATICALLY DESTOYED ALL PRIMARY KEYS. AND HAS CREATED 4 DUPLICATE RECORDS FOR EACH RECORD SO AT THIS STAGE I HAVE AROUNG 15000 RECORDS IN EACH TABLE IT MEANS 15 TIMES 4 60000 RECORDS. CAN ANYONE UPDATEME WHY THIS HAS HAPPENED AND WHAT CAN BE DONE TO DELETE EXISTING DUPLICATES. I NEED FAST REPLY IN THIS MATTER AS THIS IS URGENT. IF POSSIBLE KINDLY WRITE QUERIES TRIGGERS FOR FUTURE PROBLEMS AS WELL AS THESE DAYS I AM SICK SO MY BRAIN AINT WORKING IN THIS MATTER. URGENT URGENT URGENT THANKS ALOT I HAVE PREVIOUSLY POSTED AND HAVE GOT A GOOD RESPONSE. AND HOPE A GOOD ONE AGAIN. ONE MORE THING IS THAT I HAVE A BACKUP HERE AT MY OFFICE SYSTEM IT ALSO HAS DONE THE SAMETHING. I MADE A NEW DATABASE AND TRYED TO IMPORT DATA WITH DISTINCT KEYWORD BUUT IT IS NOT COPYING IT AS WELL. URGENT RESPONSE REQUIRED IF ANYONE CAN DO.
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Aug 23, 2005
Hello,At work we have various servers, therefore we have various DTS Interfaceswhich transfer data between them.However when trying to save a new View to one server which gets its datafrom another server nothing happens, I get an hourglass and nothing else.Then I have to exit out of SQL Enterprise Manager and then no-one can accessthe database on that server, so we had to restore from backup!The query to create the view resides on server AThe query is getting its data from server BBut the query does need to reside on server A for other reasons.What does this sound like to you?I am suspecting connection problems between server A and B but the queryruns, its only when I save the view that this happens.I am puzzled.Thanks,Jayne
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Jul 20, 2005
Hi,I had a deadlock situation on SQLServer 2000. When I look at theLocks / process ID screen on Enterprise Manager, for one of thesession, I see the object being one table and the index is on anothertotally unrelated table's primary key. This is really odd since thereare no foreign keys tying these two tables together. They don't evenreference the same parent tables. These two tables are quitedis-joint. Does anyone know why I will get this kind of lock?Thanks,Maggie :)
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Sep 25, 2006
I'm trying to copy a database from my web host to local Sql Server 2005 instance using the Copy Database wizard. I get this error:An exception occurred while executing a Transact-SQL statement or batch. Server user 'celestine' is not a valid user id database 'db2'.However, 'db2' isn't the database I was trying to copy! I am trying to copy db1, but this error is complaining about db2, which is in fact somebody else's database that I don't have a login for. Why am I getting an error about db2 when I'm not trying to do anything with db2???I can however export the tables from db1 just fine using Export. But then I have to go back and generate script to re-create the stored procs, views, etc., so it is rather tedious to do it that way.
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May 11, 2008
Hello,
I'm tyring a simple piece of code to conenct to my database: SqlConnection con = new SqlConnection("Data Source=localhost; Initial Catalog=OrderingSystem; Integrated Security=SSPI");
try
{
// Try to open the connection.
con.Open();
label1.Text = "<b>Server Version:</b> " + con.ServerVersion;
label1.Text += "<br /><b>Connection Is:</b> " + con.State.ToString();
}
catch (Exception err)
{
// Handle an error by displaying the information.
label1.Text = "Error reading the database. " + err.Message;
}
finally
{
// Either way, make sure the connection is properly closed.
// Even if the connection wasn't opened successfully,
// calling Close() won't cause an error.
con.Close();
label1.Text += "<br /><b>Now Connection Is:</b> " +
con.State.ToString();
}
When I try this, I get an error:"Error reading the database. Cannot open database "OrderingSystem" requested by the login. The login failed. Login failed for user 'NT AUTHORITYNETWORK SERVICE'."
The strange thing is, this code works perfectly If I use it in a Windows Forms application.
Is it a problem with SQL server, IIS or my code?I'm using SQL Server 2005 (SP2) 32bit developer edition + IIS 6.0 + Visual Studio 2008 Pro all runnign on my Windows XP x64 PC.
Thankyou
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Oct 29, 2005
Hey u guys.I have a strange problem and non of myfriends can solve it.The story is like this:I want to connect to my database at my hosting from SQL Query Analyser.With the same SQL server, username and password.But there is only me who can not connect by that way.This is the error of that problem, i made a screenshot for it.Please click here: http://www.xhnguyen.info/sql.JPGAnyone had this problem before ?Could anyone please help me solve it?Thank you very much.Joesy
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Jul 9, 2001
Hi all.
I was just restoring one database and creating another concurrently on the same server. The restore took longer than the create due to the respective sizes.
After the create had finished (done in Query Analyzer) I went back to the restore to see how it was getting on (running in Enterprise Manager).
There was an error (which I didn't record exactly - DOH!) along the lines of "could not obtain a lock on the model database, restore terminating abnormally."
I guess the create had model locked while it was creating the default objects, but what was a *restore* doing needing the model database anyway?
Any comments would be interesting.
Andy Tynan
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May 16, 2008
Hi gurus:
I met a very strange problem recently. I set up a database integrity check maintenance plan. But this job failed every time. I looked into the logs, the error message was that Databases that have a compatibility level of 70 (SQL Server version 7.0) will be skipped. I used the sp_helpdb to check the version of the databases included in my maintenance plan. The sp result shows that all the databases are above version 80....
Even more strange, i can successfully run the dbcc check query on each database.
Any comment and suggestion will be very appreciated.
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Apr 16, 2007
Hi,We have 2 servers. Server1 is a 2000 box, with SP3 (yes I know it isnot up to date). Server2 is a 2005 box, SP2.I set up Server1 (2000) to have a linked server to Server2 (2005). Thereason I did this is because we are using a stored procedure onServer2 to send mail, as we have found that using mail on 2000 doesn'talways work as advertised.When I set up the linked server on the 2000 box, for security I justset it up to use a SQL Server user on the 2005 box. The SQL Serveruser on the 2005 box has permissions to run the stored procedure forsending mail.Here's the weird thing though. When calling the stored procedure onthe 2005 box from the 2000 box, sometimes we get an error that "Thedefault database cannot be opened", and the query does not run on the2005 box. However, it only happens *sometimes*. Other times, the queryruns fine.Since the problem seeemed to be with the default database, I changedthe SQL Server user on 2005 default database to the SAME database thatcontains the stored procedure.However, I just don't understand why it's even TRYING to open thedefault database, since when we called the linked server we are doingso as, and it's referencing the default database in the name:EXEC Server2.DefaultDatabase.dbo.StoredProcedureNameHowever, after changing the user's default database to"DefaultDatabase" as shown above, the query runs fine.Why are we having this problem? That is, if I change the defaultdatabase to something other than "DefaultDatabase", then the querydoesn't run, even though the database name is referenced in the abovequery??Obviously, this is not desireable, because that means we can only runqueries that are in "DefaultDatabase", which may not always be thecase.Thanks much
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Jul 19, 2006
Hi everyone,
I€™m suffering a queer behaviour when I use BIDS. Concretely, when I open a dtsx from my project (it has 10 packages) many times Sequence Container and Data Flow tasks are invisible. I mean, its lines are not visible at all whereas its titles are. I mean, what you see is just a white box€¦
Then, I€™m gonna Data Flow layer and I have to do double-clik over the tasks and are visible but on Control Flow I don€™t see how to solve.
Curiously in our development and production server such behaviour doesn€™t happen (we are accessing by mean Terminal Server from our workstations)
How odd!. Everything is fine except this.
I want to remark you that such project has been copied from the server, this is, these packages are been built on the server
Thanks for your thougts or ideas,
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Mar 6, 2007
I have a datasource where i assign the control Parameter value depending on whether theres a value in the querystring or a gridview selectedvalue is indeed selected.When i do this using a querystring it works fine, however, when i do it using gridView_selectedIndexChanged it doesn't work.Here's the code <asp:SqlDataSource ID="jobDetailsDS" runat="server" ConnectionString="<%$ ConnectionStrings:promanConn %>" SelectCommand="SELECT tblJobs.intJobId, tblJobs.intJobStaffId, tblJobs.intJobUserId, tblJobs.intJobCategoryId, tblJobs.strJobTitle, tblJobs.strJobDesc, tblJobs.strJobNotes, tblJobs.dateJobLogged, tblJobs.dateJobDeadline, tblJobs.dateJobCompleted, tblJobs.intJobPriorityId, tblJobs.strJobSolution, tblJobs.boolJobCompleted, tblPriority.priorityName, tblPriority.id, tblPriority.priorityOrder, tblStaff.staffName, tblStaff.id AS staffID, tblProblemCategoriesLookup.strProblemCatName, tblProblemCategoriesLookup.intProblemCatId, tblStaff_1.id AS Expr1, tblStaff_1.staffName AS UserName FROM tblJobs INNER JOIN tblPriority ON tblJobs.intJobPriorityId = tblPriority.id INNER JOIN tblStaff ON tblJobs.intJobStaffId = tblStaff.id INNER JOIN tblProblemCategoriesLookup ON tblJobs.intJobCategoryId = tblProblemCategoriesLookup.intProblemCatId INNER JOIN tblStaff AS tblStaff_1 ON tblJobs.intJobUserId = tblStaff_1.id WHERE (tblJobs.intJobId = @intJobId)" InsertCommand="INSERT INTO tblJobs(intJobStaffId, intJobUserId, intJobCategoryId, strJobTitle, strJobDesc, strJobNotes, dateJobLogged, dateJobDeadline, intJobPriorityId, boolJobCompleted) VALUES (@intJobStaffId, 56 , 39, @strJobTitle, @strJobDesc, @strJobNotes,{ fn NOW() }, { fn NOW() }, @intJobPriorityId, 0); "> <SelectParameters> <asp:Parameter Name="intJobId" Type="int32" /> </SelectParameters> <InsertParameters> <asp:Parameter Name="intJobStaffId" Type="Int32" /> <asp:Parameter Name="strJobTitle" Type="String" /> <asp:Parameter Name="strJobDesc" Type="String" /> <asp:Parameter Name="strJobNotes" Type="String" /> <asp:Parameter Name="intJobPriorityId" Type="Int32" /> <asp:Parameter Name="intJobUserId" Type="Int32" /> </InsertParameters> </asp:SqlDataSource>Code Behind ElseIf dest > 0 Then jobDetailsDS.SelectParameters.Item("intJobId").DefaultValue = Request.QueryString("dest") notesDS.SelectParameters.Item("intJobId").DefaultValue = Request.QueryString("dest") notesDS.InsertParameters.Item("intJobId").DefaultValue = Request.QueryString("dest") gvActiveJobs.Visible = "False" End If End Sub Protected Sub gvActiveJobs_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles gvActiveJobs.SelectedIndexChanged gvActiveJobs.Visible = "False" jobDetailsDS.SelectParameters.Item("intJobId").DefaultValue = gvActiveJobs.SelectedValue notesDS.SelectParameters.Item("intJobId").DefaultValue = gvActiveJobs.SelectedValue notesDS.InsertParameters.Item("intJobId").DefaultValue = gvActiveJobs.SelectedValue End Sub I also debugged and checked the value of gvActiveJobs.SelectedValue and it is what i was expecting but its still no good.Can anyone help?ThanksMatt
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Nov 19, 2001
I moved a table from one file group to another file group. After moving the table the row count show 0 but when I open the table it’s returning all the rows. Is something wrong with the table? Do I have created a cluster index and drop on the table?
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Aug 2, 2006
Hi,
I have table in my db thats used as a temporary table. At the end of the day it contains thousands of records which get summarized then all are deleted. I recently moved the application over to a new server with pretty much the same hardware config and noticed a big performance hit when running queries on this temp table (455 milliseconds as opposed to 1) In short, the fix was dropping the table and re-creating it.
Anybody know how this could be? I know that even if you delete records from a table, the table still seems to retain its physical size on the hard drive, could this have something to do with it?
Thanks
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May 4, 2004
CREATE TABLE #users(users varchar(50),pasw varchar(50),title varchar(50))
insert into #users select 'test','abcdef','ceo'
SELECT * FROM #users
alter table #users alter column pasw nvarchar(50)
update #users set pasw=pwdencrypt(pasw)
SELECT * FROM #users
What happens to the TITLE column?
I had a table like the above with users and passwords in the Production DB. The password column had VARCHAR type. I changed it to NVARCHAR and encrypted the passwords. When i executed the SELECT *, the title column appeared like this. :eek:
If i query the table by column names instead of * i see the correct values. I couldn't understand what behaviour is it.
Howdy!
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May 22, 2008
Hi Experts,
Am able to restart my local sql server using a login which dont have a sysadmin privileage.This login only have access to a particular database .Its only having datareader and datawriter as DB roles but still am able to restart the server.Please help
TIA
RKNAIR
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Aug 3, 2006
I am using c# and ASP.NET 2 and I am getting a very strange error. I
have a field called CompanyID in SQL Server 2005, and it allows null
values in it. When this CompanyID is not NULL, ie for example it is
202, then when i press the update button it allows me to update
perfectly in the database. However if the CompanyID is NULL,
and I try to update the companyID, to lets say 202, the application
just crashes with the following message:- System.InvalidCastException: Object cannot be cast from DBNull to other types. I tried to set some breakpoints in the application to debug, however it does not even pass through these breakpoints! Any ideas on what the problem can be or how I can debug? Thanks for your help and time Johann
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Oct 3, 2006
This is the actual statement displayed from Response.Write in classic ASP. INSERT INTO WOTasks (WoNum,TaskNum,TaskDesc,TaskMemo,Account,ModifyDate,Estimate,TaskHours,Unit,UnitCost,TotalCost) SELECT '06-012497',TaskNum,TaskDesc,TaskMemo,Account,'2006-Oct-3',1,TaskHours,Unit,UnitCost,TotalCost FROM Tasks WHERE procnum = '000002' There are 4 records returned from the SELECT part of the statement. In some situations, 4 records are inserted to WOTasks table, in others, only 1 record is inserted. I can't find out why 1 record, instead of 4, record is inserted. A form page submits the form to the save page using post method. The above statement is contained in the save page. When one of the form textbox is filled, 1 record is inserted. When the textbox is not filled, 4 records are inserted. You may think the textbox has something to do with the behaviour. I also think so but the content of the textbox does not affect the sql statement. In both cases, the insert statement is the same. In the actual codes, only strings in quotes are variables and the rest are hardcoded. When I run the statement in SQL Server, 4 records are affected. No such problem when connected with Access.The actual code belowSub AddTask(ByVal proc, ByVal wonum) Dim sSQL sSQL = "INSERT INTO WOTasks (WoNum,TaskNum,TaskDesc,TaskMemo,Account,ModifyDate,Estimate,TaskHours,Unit,UnitCost,TotalCost) SELECT '" & wonum & _ "',TaskNum,TaskDesc,TaskMemo,Account,'" & curDate & "',1,TaskHours,Unit,UnitCost,TotalCost FROM Tasks WHERE procnum='" & proc & "'" 'Response.Write sSQL:Response.End conn.Execute sSQL, , 128 End Sub
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Jan 20, 2008
Hi there I have this statement I have written as follows:strCommand = "SELECT * FROM tblstock WHERE Type='"&Statement &"' AND Description like'"&criteria &"%' OR Tag like'"&criteria &"%'OR Location like'"&criteria &"%' OR LAN like'"&criteria &"%' OR RAM like'"&criteria &"%' OR CD like'"&criteria &"%' OR OS like '" &criteria &"%' OR SN like'" &criteria &"%' OR DeviceStatus like'" &criteria &"%' ORDER BY " &sSortStr The variable "Statement" is passed into the sub as "PC" which means only records of type "PC" should be displayed along with any other criteria. The issue I'm having is that when I specify criteria I'm also recieving other types eg "Cameras" if they contain any of my criteria.. I can't understand how because in the statement I tell it only to display records of type "PC".. Anybody know what I'm doing wrong? Thanks
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Feb 1, 2008
I've done a new tabel that insert the UserId that in a uniqueidentifier get from Membership.GetUser().ProviderUserKeySo if I want to make a select statement threw storedprocedure in codebehind it runs as it shouldCode behindDim GetCustomersCars As CustomerCarByUserId = New CustomerCarByUserId MyCars.DataSource = GetCustomersCars.CarByUserId(Membership.GetUser().ProviderUserKey)MyCars.DataBind() But in when I use ObjectDataSource it fails<asp:ObjectDataSource id="ObjectDataSource1" runat="server" selectmethod="CarByUserId" typename="CustomerCarByUserId"> <SelectParameters> <asp:Parameter defaultvalue="Membership.GetUser().ProviderUserKey" name="UserId" type="Object" /> </SelectParameters> </asp:ObjectDataSource>I've tried with Membership.GetUser().ProviderUserKey.ToString(), but that doesnt work. Error message:InvalidCastExceptionI connect to the same source in both cases.Any one with an Idee ?
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May 13, 2008
So we currently are running a SQL 7 Server, which hopefully we will be updating this year but untill then we're stuck. I've got a web app using ASP.NET 2.0 and on occasion I get this error:
System.Data.SqlClient.SqlException: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: TCP Provider, error: 0 - Only one usage of each socket address (protocol/network address/port) is normally permitted.) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Connect(Boolean& useFailoverPartner, Boolean& failoverDemandDone, String host, String failoverPartner, String protocol, SqlInternalConnectionTds connHandler, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject, Boolean aliasLookup) at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open()
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Mar 25, 2004
I Some sql that it keeps throwing the following error
SqlDumpExceptionHandler: Process 52 generated fatal exception c0000005 EXCEPTION_ACCESS_VIOLATION. SQL Server is terminating this process.
Here is the sql
UPDATE dbo.temptable
SET code = 'MM'
FROM dbo.temptable T
JOIN dbo.Item I WITH (NOLOCK)
ON T.ProductID = P.ProductID
JOIN dbo.cars C WITH (NOLOCK) ON I.ModelID = C.ModelID
JOIN dbo.carmakes CM WITH (NOLOCK) ON CM.MakeID = C.MakeID
JOIN dbo.CarDealerMakes CDM WITH (NOLOCK)
ON CM.MakeID = CDM.MakeID
WHERE T.ProductID NOT IN (
SELECT distinct A.ProductID
FROM dbo.Action A WITH (NOLOCK)
JOIN dbo.ActionPurchases AP WITH (NOLOCK)
ON A.ActionID = AP.ActionID
WHERE A.CustomerID = 2
UNION
SELECT distinct A.ProductID
FROM dbo.Action A WITH (NOLOCK)
JOIN dbo.ActionServices S WITH (NOLOCK)
ON A.ActionID = S.ActionID
WHERE 2 = A.ProductID)
That sql will run on windows 2000 but it will not run on windows 2003.
I have the latest service pack.
Has anyone ever come across this before or have and suggestions ?
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Jul 9, 2005
I have a query as follow:
SELECT @resRate = (SELECT resRate FROM ProjectAssign WHERE proNo = (SELECT projNo FROM Timer_Cust WHERE refNum = @actProjNo AND username= (SELECT username FROM Timer_Emp WHERE refNum = @actEmployee) ) )
the definition of table Timer_cust contains refNum(int), projNo(varchar) and projName(varchar).Timer_cust table doesn't contain column username. So this query shoud generate a runtime error. however it works fine without error.But if I run SELECT projNo FROM Timer_Cust WHERE refNum = @actProjNo AND username= (SELECT username FROM Timer_Emp WHERE refNum = @actEmployee)A runtime error message appears.Why?
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Aug 13, 2001
Can any one tell me why sp_helpindex shows several indexes though there is only one index on the table. When i use Enterprise manager it shows only one index..Any idea..is it a bug ..do I need to apply latest service pack ?
Here is the output shows
IX_tbl_ncf_bo
_WA_Sys_Deal_No_2902ECC1
_WA_Sys_fwddate_2902ECC1
_WA_Sys_deal_type_2902ECC1
_WA_Sys_RegionID_2902ECC1
_WA_Sys_CompID_2902ECC1
_WA_Sys_To_Include_2902ECC1
_WA_Sys_SvcChoice_2902ECC1
_WA_Sys_UtilityID_2902ECC1
First one is actual index that I created, remaining
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Jul 31, 2000
i have four separate jobs which run at scheduled time daily..out of which one job has run properly and the other three have not run at all(there is no details of it in "View job history")for only one day in between..again from the next day all the four jobs are running properly.what could be the reason for the three jobs not running on a particular day?(The jobs were scheduled between 3 and 4am in the morning..so nobody would be using the system at that time and the system was definitely up at that time as that one job has run)
i could afford to have such strange behaviour in future as the jobs are important and should run daily.any ideas by which i could make sure all four jobs run daily?
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Feb 6, 2001
We've been finding some strange indexes in our SQL 7 database. They are not indexes we put in, but seem to be system generated. They always have the format "hind_" and then a series of numbers and underscores. Most of the time they replicate indexes we already had in place. The strangest part is that in some cases they seem to be generating multiple clustered indexes on the same table. A previous question recieved an answer saying that they were statistical indexes. Could someone shed a little more light on what these are, where they came from, and how I can prevent them from coming back? Our queries usually take much longer on tables with these "rogue" indexes on them. Thanks.
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Mar 13, 2003
Why is it so?
select len("Test")
--returns 4
select len("Test ")
--returns 4
select len(" Test ")
--returns 7
why not all 4 ?
why not 4,11,14?
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Nov 29, 2005
I have a SP that usually works fine (0-16 CPU time, 40 ms Duration), but from time to time the server hangs with apparently no reason. The SP has a lock timeout set to 500, so it should abort if a lock timeout error (1222) occurs but it doesn't. The Profiler reports very long execution time (over 30 sec), and because of that all other SP calls are blocked, 'cause the transaction opened by the first sp execution is not finished yet.
Any other attempts to identify other blocking queries did not show me anything suspect (sp_lock, dbcc opentran) other then the usual blocked chain. I'm starting to think about an IO bottleneck, or IO failure, that could block the disk access and cause the delay. The status of RAID 5 is healthy.
The server is used as storage system for a website (approx. 2000 concurrent users), and occasionally I noticed an ASP queue, but this strange behavior occurs even during the peak-off hours.
Any thoughts ?
-----
HP Server - 2 CPU @ 3,4 ; 4 GB RAM; SCSI - RAID 5
Windows 2000 Advanced Server - SQL Server 2000 SP4
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Apr 24, 2006
I have a table. It shows "Rows: 2" when I open it in the table properties dialog. But there is no record in the table when I open it from Open Table -> Return All Rows.
I don't understand how this can happen. Any help is appreciated.
Thanks.
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Nov 19, 2006
Hello
I have one PC with SQL server 2000 and I am working on one database called TaxReg but today I found it gray and (suspect) beside it
could you please tell what is the problem and how to fix it ?
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Jul 16, 2007
...the Access forum...so many bad practices
Like this one
http://www.dbforums.com/showthread.php?p=6284279&posted=1#post6284279
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Mar 2, 2004
I received some strange results after typing the wrong column in a subselect using IN. I've been puzzling over it a while now and can't quite figure out why it is doing what it is.
Here's an example of what is happening.
use northwind
go
select * from Customers where CustomerID in
( select CustomerID from Employees where 1 = 0 )
Now, there is no customerid on the Employees table, so running the subquery alone will produce an error. However when the full query above is run, all rows in the customer table are returned.
It was my understanding that the inner querry is evaluated first, and the results used by the outer query. I'm having a hard time seeing how this query is going anywhere.
Any ideas?
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Mar 24, 2004
I have a simple query which ran fine for the last 12 months. All of sudden, it's dragging and couldn't finish in 6 hours. I tried to trace down where the problem resided but it's such a simple query there is nothing to break down. By chance, I commented out all the column names and replace with ' SELECT * ', the query finished in 14 seconds. Once I replace the * with column names, it ran over 20 minutes and I had to cancel it because it doesn't seem to be returning any results. Any help would be appreciated. Thanks.
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