Probably a dumb question, but if one is using SQL Server 2000 instead of 'SQL Express' what has to change here, in order to set up caching? What changes in the paths?
http://beta.asp.net/guidedtour2/s22.aspx
Hello, I have caching enabled in my application and I am using SqlCacheDependency to cache my tables. Well, the cache works fine but when the table is updated the information in my cache does not update. I DO have the broker service started and running but not sure what else i am missing. I am using sql server 2005.
View 1 Replies View RelatedHey, I can't enable caching on my local computer..I use daspnet_regsql -S "localhostSQLEXPRESS" -E -d books -edand aspnet_regsql -S "AdminSQLEXPRESS" -E -d books -edto try to start but i get a login error...cannot open database "books" requested by login. The login failed. Login failed for user Computer2/Adminunable to connect to SQL database for cache dependency registrationI tested connection with vwd and sql express management and it connects so I don't know what i'm doing wrong since I followed the direction and I googled for answer but not coming up with anything that's helping me..anyone have this problem and know how to resolve so i can cache some data output on my project
View 2 Replies View RelatedToday I was asked a question I couldn't answer [it happens all the time...more than I like to admit...] concerning the performance hit of the SQL LIKE Filter.
The question was, what is the performance hit you take when you, say filter the results of a gridview control, with a LIKE FILTER in a stored procedure in SQL SERVER 2005?
Would it be preferable to create a Dependency Cache of a DataSet or a DataView object and then perform some type of filtering operation on that?
Thanks in advance.
God Bless.
Doug
I am building a web app using VS2005 and SQL 2005 I would like to use the Caching Application Block to cache objects from my BLL. I was wondering if there is a way of utilizing the build in SQLDependency in SQL 2005 with the Caching Application Block??? Does anybody have tried this, are there any samples on the web???
Thanks,
Newbie
I needed to do lookup on tables with approx 1 million records (how else do I know if record already exists?).
View 7 Replies View RelatedIam not sure why Iam not able to successfully set up sql mail. here are the steps I follow:
1. I Created a user account and password to be used for sql server and sql agent as a service account.( Domain Namesqlservice )
2. Logged off window 2000 then log in with the same account I created in step one.
3. double clicked mail icon in control panel to set up a mail account by specifying the following:
pop :pop.erols.com
smtp: smtp.erols.com
I choose POP instead of IMAP to set up the mail account
4.tested the account by opening Outlook and was able to send and recieve mail via Outlook.
So far so good
I assume that I have already (a)created a service account to be used for sql server and sql agen mail account (b) created a mail account (c)tested the mail.
5. I opened sql server and clicked on the mail in the management console to test the sql mail by typing the same mail account in the text box, then clicking test.... I got an error message the MAPI is not set up and it is not connecting to any profile.
another error I got was Error :xp_mapi profile : failed with mail error 0x80040106
Here are some questions that I am not sure about.
Q1. Do I need to set up smtp service in service tab to use same account as sql server/ sql agent. It is using local system account now
Q2. the above steps are correct, I guess so, so what is the reason not being able to set up the mail profile to be used by sql server mail
Thanks for your help
Ali
Hi
I have a setup where I need to replicate the database which is actually subscribing from another database. The current setup is all in SQL Server 2000. I need to now setup a Distrbutor on a SQL server 2005 and publish the database using this distributor to another server on SQL server 2000.
Has anybody done this before. If yes what will I need to check. Can you please let me know :-
1) SQL Server 2000 which SP should be installed to support this enviroment.
2) SQL Server 2005 which SP should be installed to support this environment.
3) Any thing that I need to look out for.
Thanks for any inputs on this.
Regards
Suppose 40 winform clients of SQL Server(SS) 2005 request the same data (select * from sometable).
Is there any proxy service in SS or all clients will be queueing/competing for the same answer?
Scenario is I have twenty data files (0001.txt to 0020.txt ) and for each run I am loading two packages
(Example1.dtsx and Example2.dtsx) and executing it against one data file (0001.txt in the first run ...0020.txt
in the last run -> total 20 runs). Execution order is Example1.dtsx and then Example2.dtsx.
My question by this way, the process takes significant amount of time as the packages needs to be loaded
for each run. Is there any way we can cache the packages, as we are creating an application object when we
load the packages. Please let me know if there is a better by which the execution time is significantly reduced.
In SQL Server 2000 we had an option of Turning ON but I couldn't find that in 2005.
Hi,I have over 200 stored procedures and they have dependencies on each other (not necessarily a cyclic dependency).Is there a way in SQL Server 2005 that I can disable a dependency check while I am executing a script that creates those stored procedures, and then re-enable it after?Thanks.
View 2 Replies View RelatedI have implemented SQL cache dependency to invalidate cache whenever the result of the stored procedure gets changed. The stored procedure is written obeying all the notification rules.
Our problem:
As long as we are working on Local machine, Development server or Pre production server its working fine means the cache gets invalidated whenever there is any change in the result set. But the same implementation doesn’t work in Production. Cache does not get invalidated.
Difference in Production environment and other environment:
Production uses cluster SQL server, others use standard SQL server. Production has load balancing means application is deployed on 6 servers which hits same clustered SQL server. In application’s global.asax file i have Start dependency so I see 6 different notifications started in SQL server which is right. But whenever there is a change in result set the cache doesn’t get invalidated in any of the application.
My question is
Do we have to follow any different kind of implementation of SQL cache dependency for web farm and cluster SQL server scenario?
On the same note I would like to add, on the same SQL server I have one more database and a different application is accessing this database. This application is also using SQL cache dependency and its working fine. The only thing this .Net application is NOT deployed on web farm. Its deployed on single application server.
I want find all dependent objects related to a table. I am using -
SELECT DISTINCT so.name
INTO #tmp
FROM dbo.sysobjects so
JOIN dbo.SysComments sc
ON sc.id = so.id
WHERE sc.text LIKE '%tablename%'But, I want all those SP/functions/views that use the output of this query and so on...
Eg.
Table -> used in usp1 -> usp1 used in usp2 ...and so on
I have a service that depends on SQL Server service. Basically we make sure that our service only starts after SQL server service started. Unfortunately this dependency does not ensure that database is available.
Basically I observed in Application log that SQL server reports that it started to listen on a port. And then I see that recovery process started. As I understand SQL server is not available while database is in the recovery state.
Note: I might have not used a correct terminology to describe SQL server recovery process as I don't have access to Application log with the exact message at the moment. I can verify the message if necessary.
Because SQL server service is started our service starts and attempts to connect to the database. Service fails to connect to database, because of the restoration process. Once restoration is done service connects successfully.
I observed that restoration process starts every time machine is rebooted. It only takes a few minutes to run, but it is enough to generate a number of error messages in event log about failed SQL connections.
My first question is: Is it normal for database to enter into recovery state every time machine is rebooted?
My second question is: If it is a normal operation, is there any way to detect that SQL server is truly available, so our code does not have to try retry establishing connection many times
I've heard that the Standard version supports the use of CommandNotification and that the Express version does not. What about the Workgroup edition?
The reason I'm asking is because there is a substantial monthly difference in cost between the two versions if I were to have my site hosted. I've been developing with MS SQL 2005 Express so obviously I have not tested this caching feature. Are command notifications reliable? On paper, it sounds impressive and extremely efficient especially if a site is to have heavy traffic and you can't afford the overhead of heavy database processing that is useless if the data is unchanged.
Does the Workgroup edition support automatic change notifications? Have automatic notifications been proven reliable and vastly more efficient than crude polling methods?
Thanks in advance.
Hi
I am creating a report on a database where some of the table names start
with the @ sign - ie @table1.
Reporting services picks this up as a parameter, instead of a table name in
my query, even though I am encapsulating the table name in square brackets
eg. [@table1]
I have several data sets in the report that i am using to populate valid
parameters. These datasets are all variations of queries from tables that
have @ as the first character.
When i then try to run the report i get an error message as follows:
"The report parameter pool has a default value or a valid value that depends
on the report parameter SD_POOLCONTRACTS. Forward dependencies are not valid"
This is frustrating as SD_POOLCONTRACTS is not a report parameter but one of
the database tables that has @ for it's first character.
here is the query that i use to obtain the valid values for the pool report
parameter that i am trying to set up.
SELECT distinct u_poolcode as Pool
FROM OCRD INNER JOIN
OCRG ON OCRD.GroupCode = OCRG.GroupCode INNER JOIN
CRD1 ON OCRD.CardCode = CRD1.CardCode inner JOIN
[@SD_POOLCONTRACT] INNER JOIN
[@SD_POOLCONTRCT_LINE] ON [@SD_POOLCONTRACT].DocEntry
= [@SD_POOLCONTRCT_LINE].DocEntry INNER JOIN
[@SD_CONTRACTS] ON [@SD_POOLCONTRCT_LINE].U_DocNo =
[@SD_CONTRACTS].DocNum ON
case when len(ocrd.fathercard) = 0 then ocrd.cardcode
else ISNULL(OCRD.FatherCard, OCRD.CardCode) end = [@SD_CONTRACTS].U_CardCode
WHERE (OCRD.CardType = 'c') AND (OCRG.GroupName LIKE N'producer%') AND
(CRD1.AdresType = 'b')
ORDER BY OCRG.GroupName, FatherCard, OCRD.CardCode
Any help would be appreciated.
I have a client server that has win2000 on it with sql 2000 enterprise edition. The box has 4 gig of memory on it. I noticed today that the sql server was set to use all 4 gig (even though I know sql can't really access that memory because sql can't really utilize the 2-4 gig range). Is there overhead or a downside to leaving it at this, or should I set it to 2 gig
View 3 Replies View RelatedHi there,
I'm creating an SSIS package that will execute legacy dts packages. The package to be executed is decided at runtime using a sql query task.
Executing a dts package statically works fine, but when I try to set the details of the dts to be run via expressions, I get the error below.
To make it dynamic, I created a variable of type string, and put the package name in here. I also have a string variable for the packageid. Then I set up an expression on the Execute DTS 2000 Package Task that sets the PackageName & PackageID property to this variable.
The PackageId is a string variable I've retrieved using:
select top 1 name,
cast(id AS varchar(50)) id,
cast(versionid AS varchar(50)) versionid
from sysdtspackages
where name = @PackageName
order by createdate desc
When I use the task to set the package id it works find (by selecting a dts, then changing the name), but when I try to provide the package id I get this message:
Error: 0x0 at Execute DTS 2000 Package Task: System.Runtime.InteropServices.COMException (0x8004040E): Invalid GUID specified.
at DTS.PackageClass.LoadFromSQLServer(String ServerName, String ServerUserName, String ServerPassword, DTSSQLServerStorageFlags Flags, String PackagePassword, String PackageGuid, String PackageVersionGuid, String PackageName, Object& pVarPersistStgOfHost)
at Microsoft.SqlServer.Dts.Tasks.Exec80PackageTask.PackageUtils.LoadDTS8Package(String pkgSrc, String sourceUser, String sourcePwd, Int32 srcType, Boolean bUseTrustedConnection, String packageName, String packagePassword, String packageID, String packageVersionGUID)
at Microsoft.SqlServer.Dts.Tasks.Exec80PackageTask.Exec80PackageTask.LoadPackage()
at Microsoft.SqlServer.Dts.Tasks.Exec80PackageTask.Exec80PackageTask.ExecuteThread()
Task failed: Execute DTS 2000 Package Task
but the method signature specifies String PackageGuid, and it is a string..
any ideas??
i tried casting the variable like so:
(DT_GUID) @[User:TSPkgId], as the versionid is a uniqueidentifier on sysdtspackages.. It didn't like that at all (can't cast from type DT_WSTR to DT_GUID error code 0xC00470C2)
Hi All,I have an application that reads data from a very slow database link(like 10 seconds per call) though what I am looking for would be ofgeneric use for anyone who has long-running queries that arefrequently repeated.I would like to be able to cache the results of a query so that I donot have to re-execute that query if it is reissued. Ideally Ibelieve that this could be implemented by hiding the query inside aUDF and exposing the UDF through a view. The UDF could then "Checkthe cache" and only run the slow query if there wasn't a match (or ifthe match was too old). From what I understand the best way to dothis would be for the cache to be an extended stored procedure.Has anyone done or seen this? Has someone written a copy that Icould purchase? Does anyone care to offer their opinnion of how or ifthis could work?Thanks in Advance,Steven
View 4 Replies View RelatedHello All,
I want to use SQLDataSource as a base of all Gridview in my application. I have read that SQLDataSource support caching.
I want to know as SQLDataSource is a child control of page class. It will get unloaded when page is unloaded. So how caching works. Like I am using SQLDataSource as base of my GridView control. When I perform paging or sorting,In theory It says that It will not hit the Datbase again. It will keep that Data in memory as DataSet, but this will stay alive upto life of page, which starts again and again when a page is requested, So as its child controls.
Can anybody give me more intrinsics on this.
Any Help from Microsoft is appreciated !!!!
Thanks !!
I know I can use the SqlDataSource object and cache the results by setting it's enableCache property to true, but what if I am using essentially the same SqlDataSource control across multiple pages? For instance I have a States SqlDataSource on many pages in my site, if I enable caching on all of these objects won't they all be cached separately? Is the solution to not use the SqlDataSource and instead cache the datatable of results and bind the dropdownlists to that? Thanks in advance.
View 1 Replies View RelatedHi Expert, Am I doing it right? Can you give me any suggestions please? Thank you!!I followed the way for setting up the sql cache dependency from http://quickstarts.asp.net/QuickStartv20/aspnet/doc/caching/SQLInvalidation.aspx.However, I still have the following error:
When using SqlDependency without providing an options value, SqlDependency.Start() must be called prior to execution of a command added to the SqlDependency instance.
IssueSummary.aspx<%@ Page Language="VB" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="IssueSummary.aspx.vb" Inherits="IssueSummary" title="Issue Summary" %><%@ Register Assembly="AtlasControlToolkit" Namespace="AtlasControlToolkit" TagPrefix="cc2" %><%@ Register Assembly="Microsoft.Web.Atlas" Namespace="Microsoft.Web.UI" TagPrefix="cc1" %><%@ OutputCache Duration="999999" VaryByParam="None" SqlDependency="CommandNotification" %>
Global.asaxSub Application_Start(ByVal sender As Object, ByVal e As EventArgs)Dim connectionString As String = ConfigurationManager.ConnectionStrings("ICTConnectionString").ConnectionStringDim needToInstall As Boolean = TrueTryDim tables() As Stringtables = SqlCacheDependencyAdmin.GetTablesEnabledForNotifications(connectionString)If (Not tables Is Nothing) ThenDim tbl As StringFor Each tbl In tablesIf (tbl.ToLower().Equals("IssueDetails")) ThenneedToInstall = FalseEnd IfNextEnd IfCatch ex As ExceptionneedToInstall = TrueEnd TryIf (needToInstall) ThenSqlCacheDependencyAdmin.EnableNotifications(connectionString)SqlCacheDependencyAdmin.EnableTableForNotifications(connectionString, "IssueDetails")End IfEnd Sub
Web.config<connectionStrings><add name="ICTConnectionString" connectionString="Data Source=jamesle-3;Initial Catalog=IssueCommunicationTool;Integrated Security=True" providerName="System.Data.SqlClient"/></connectionStrings><system.web><caching><sqlCacheDependency enabled="true" pollTime="1000" ><databases><add name="ICTDB" connectionStringName="ICTConnectionString" /></databases></sqlCacheDependency></caching>
SQL Server 2005 - Database - IssueCommunicationToolSELECT is_broker_enabled FROM sys.databases WHERE name = 'IssueCommunicationTool'
Return = 1, it means the broker service is enabled. Also, the database has created the table ASPNET_SQLCacheTableForChangeNotification, the trigger in IssueDetails table, and some other store procedures.
I have a control that shows the top 5 best selling products. Thes list does not need to be up to date at all times. Ideally I would like to cache the data for say 24hr before pulling it again if someone accesses the control. I thought there was an easy way to do this, but I can't seem to find anything. Can anyone point me in the right direction.
View 7 Replies View RelatedHi, I'm trying to set up a SqlCacheDependency using the Query notifications of SQL Server 2005.
I haven't even got to the point of testing the notifications part. My problem is that my DataTable is not
even getting stored in the cache when I insert it. The cache seems to be getting invalided as soon
as I add the DataTable. Here is my code:
(am trying to get a simple example working first)protected void Page_Load(object sender, EventArgs e)
{ DataTable results = (DataTable)HttpRuntime.Cache.Get("supplyFunctions");
if (results == null)
{ Response.Write("Cache Invalidated, hitting DB. TIME: " + DateTime.Now.ToString());
results = getSupplyFunctions();
}
else
{ Response.Write("got from Cache, TIME: " + DateTime.Now);
} GridView1.DataSource = results;
GridView1.DataBind();
}private DataTable getSupplyFunctions()
{ DataTable results = new DataTable(); using (SqlConnection connection = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ToString()) )
{ using (SqlCommand command = connection.CreateCommand())
{
command.CommandText = "schema.myStoredProc"; command.CommandType = CommandType.StoredProcedure;
SqlCacheDependency dependency = new SqlCacheDependency(command); SqlDataAdapter adapter = new SqlDataAdapter();
adapter.SelectCommand = command; DataSet dataset = new DataSet();
adapter.Fill(dataset);
results = dataset.Tables[0];
HttpRuntime.Cache.Insert("supplyFunctions", results, dependency);
}
} return results;
}
Also, whats weird is that when I keep refreshing the page, after like 5 to 10 minutes it works, and starts caching the data.
This disturbs me-- I would like to know what is going on. I am pretty sure my stored procedure doesn't break the rules of the query notifications. Can someone help me out?!??!
Thanks!
Question for all Cache Gurus
I have a page in my website that pulls content for a
newsletter from a SQL Server 2000 database using a SqlDataSource and a
FormView. I add a new newsletter every week. Other than that weekly addition,
no changes are really ever needed or made to the data. Scott Gu says every
application can and should make use of caching and I would like to add some
kind of caching to improve the performance of this page. I have read about SqlCacheDependency with SQL
2000, but if I understand it correctly, it will poll the database for changes
every x seconds, an expensive operation that I just don’t need; the data only
changes once a week. I’ve seen some code examples using DataSets and the Cache
API but I’m really just looking for a simple, mostly declarative solution using the
SqlDataSource. Theoretically, I would
like the data cached forever until I insert a new item. I have set the
following cache-related properties on my SqlDataSource as follows:
EnableCaching = TrueDataSourceMode = DataSetCacheDuration = InfiniteCacheExpirationPolicy = Absolute
Setting these properties seems to work great for caching the
data but how do I programmatically invalidate the cache when a new item is
inserted? I have a separate admin page with a FormView that I use to insert the
newsletter each week. Is there some kind of code that I could put in the
ItemInserted event that would invalidate the cache so that the new item will be
displayed and then cached? I don't have any experience with caching; where am I going wrong? Are my expectations unrealistic? Thank you in advance to anyone who can shed some
light on this issue.
I've recently deployed an ASP.Net application, with admittedly not a lot of experience with SQL Server 2005 caching.A problem that I ran into is a user searching for a case number very soon after entering it, and it not showing up. However, after a few minutes and re-running the search it appeared.I'm guessing that this is a SQL Server caching issue, but I'm not sure what to do about it.On my search screen, I have a listview for the results, a textbox for the case # input, a button and a sqldatasource. The SqlDataSource uses a select statement, and two parameters for user(ensure the case belongs to that user) and casenumber. The SqlDataSource has enablecaching set to false. Any ideas what I can do about this issue? Also, any good places I can read about sql server caching? Thanks
View 4 Replies View RelatedI'm trying to performance tune a procedure and am sort of being thwarted by caching.
When I first run the procedure, it takes a few seconds which is too long in this case. Subsequent executions in Management Studio are nearly instantaneous, though, which I imagine is due to caching and does not reflect the behavior of the procedure in production.
Is there a way to disable caching so that each execution of the procedure in Management Studio will be consistent and reflect the "first run" performance?
Is there a way to manage the cache when a file is being FTP'd from a server? It writes the file to the d: drive but caches it to c: first. Can I add a command line switch to tell it not to cache the file first?
Thx
Hi,
I have prepared a time series model. The model works well with few cases. Answering time raises extremly after processing the model with all cases.
In a book I read sth. about a cahing possibilty. But how can this be defined in Visual Studio ?
Thanks in advance
Achim
Is it possible expire a report cache after less than one minute? I'm looking for a way to only have a report hit the database once every 10 seconds, no matter how many people are hitting it. Thanks.
View 1 Replies View RelatedHello Experts,
If i use the caching feature of the report. is there a way i can find or set in the report itself if the user if renedered from cache or actually connected to the database.
i mean if ON the Caching, for the 1st user the data will come from DB and the report manager stores the report in cache. next user if he tries to connect should get a message that the report was rendered from cache - taken 5 min back.
any possibility in reports.
/Soni
Is it possible to make the execution of one job dependent on the successful execution of a previous job?
View 2 Replies View RelatedHi!
View 7 Replies View Related