What Is A Bookmark, And Why Is It Costing Me 32%?
Apr 26, 2007
okay, so i've been slowly working on an application mostly VB/ASP.Net based that is basically i dummied down query builder. the user selects a bunch of controls off the website, then submits it for a query. the server then executes a dynamic stored procedure, and the website builds a count with the results. i have a couple of questions, i've come to the point where if the query isnt finished inside 30 seconds, the site times out, so i'm looking at a query here, and i have a "BookMark LOOKUP" that is costing me 32% of the query. what can i do to stop that?
how can i get my indexes to perform faster, and is it an issue with the procedure that causes some queries to time out, or is it just the way the data is organized?
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Sep 4, 2001
l'm in the process of looking at existing queries trying to fine tune them and cost them to try and optimize them. When you get a value Table scan 79%. Is that good or bad.What bench mark should one use when costing queries?Where can l get tips to fine tune queries and enhance performance?Please advice
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Nov 7, 2003
execution plan of procedure shows
bookmark lookup cost : 46%
any way to reduce it ?
Thanks
alex
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Aug 17, 2007
Hi,
Please tell me how to implement the "Jump to Bookmark" in reports,
I mean to say, i have to move to another area or page in a report.
Please provide a sample for the same.
Thanks and Regards
Altaf Nizamuddin
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Feb 13, 2007
I have a report in reporting services that has a bookmark value asigned to each row. In the following Page_Load event for the page, I'm getting the following error on the ReportViewer1.JumpToBookmark("6") statement:
"An exception of type 'System.InvalidOperationException' occurred in Microsoft.ReportViewer.WebForms.dll but was not handled in user code
Additional information: Some parameters or credentials have not been specified"
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not IsPostBack Then
Dim strReport1 As String = "/ReportDirectory/CurrentWeekSales"
ReportViewer1.ServerReport.ReportServerUrl = New System.Uri(CStr(Session.Item("ReportServer")))
ReportViewer1.ServerReport.ReportPath = strReport1
ReportViewer1.ServerReport.Timeout = 500000
Do While ReportViewer1.ServerReport.IsDrillthroughReport
ReportViewer1.PerformBack()
Loop
Dim RptParameters1 As ReportParameter() = New ReportParameter(0) {}
RptParameters1(0) = New ReportParameter("EBO_EmpKey", CStr(Session.Item("UserKey")))
ReportViewer1.ServerReport.SetParameters(RptParameters1)
ReportViewer1.ServerReport.Refresh()
ReportViewer1.JumpToBookmark("6")
End If
End Sub
What am I missing?
Thanks
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Jul 23, 2005
When a nonunique nonclustered index is built on top of a clusteredindex, is it guaranteed that the bookmark in the nonclustered indexwill be kept in the same order as the clustered index?Here's an example to demonstrate my question:CREATE TABLE indextest (col1 int NOT NULL,col2 int NOT NULL,col3int,col4 int)ALTER TABLE indextest ADD PRIMARY KEY CLUSTERED (col1,col2)CREATE INDEX ix_indextest ON indextest (col1,col3)GOINSERT indextest VALUES (1,2,1,1)INSERT indextest VALUES (1,3,2,1)INSERT indextest VALUES (1,4,2,1)INSERT indextest VALUES (2,1,1,1)INSERT indextest VALUES (1,1,1,1)SELECT col1,col2 FROM indextest WHERE col1=1 AND col3=1DROP TABLE indextestThe select statement above is covered by the nonclustered index, sothat index is used. However, the nonclustered index is defined only toensure the ordering of col1 and col3 within the index; col1 and col2follow within the index as the bookmark to the clustered index. When Irun this query, my desired result is to have the records appear in theorder supported by the clustered index:1,11,2As it happens, the result I got was indeed in that order, but I don'tknow if it was mere coincidence, or if the bookmark in the nonclusteredindex is maintained in the same order as the clustered index. If Iwant to ensure the above order, is it sufficient to have thenonclustered index defined as above, or do I need to define it as:create index ix_indextest on indextest (col1,col3,col2)just to be sure that the results are returned in ascending order forcol1,col2? If the two-column index is sufficient, is it guaranteed tostill be sufficient in SQL2005 and future versions of SQL Server, or amI better off adding the third column just to be safe?Thank you,--Dennis Culley
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Feb 4, 2006
I notice that SQL Server 2005 creates worktables where SQL 2000 does not. Often these work tables appear in STATISTICS IO, but they show a 0 scan count and 0 logical reads. These worktables often appear to be substituted for bookmark lookups.
Has the optimizer decided to use worktables instead of bookmark lookups (often resulting in a higher cost plan)?
Sharon
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Nov 21, 2007
All,
Is there a way to combine the Bookmark and report link functionalities in reporting services. For example, I have two reports. When I click a link in first report, I would like to be able to navigate to second report but not at the top of the report but at a particular report item way down in the second report, sort of like an anchor on an HTML page. Can I do this?
Thanks.
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Jun 7, 2006
Is there a way to jump from one report to a specific bookmark in the second report? I have a chart that jumps quite nicely to a filtered version of the report, but instead would like to be able to jump to the entire report at the specific location (e.g., Bookmark) related to the chart data item.
I know that it's quite easy to jump to a bookmark within the same report. What I can't quite determine is how to jump from one report to a specific section in a second report.
Thanks.
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Aug 30, 2006
I know I can do to just show 1 entry
select * from table where no = @parameter_no
but is it possible to actually select ALL entries (I have 250 for now) in the list report, but jump to a particular # based on parameter?
Say I have ID 1 ~ 250 (select * from table) in DataSet, but when I enter 220 in parameter, the report still selects all 250 entries but jump to the 220 entry?
I have bookmark set up on each entry
Thanks for any help. I noticed in my search that jump to a report + bookmark isn't supported, does my situation fall under that?
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Jun 5, 2015
I am using 2 charts in my SSRS Report. Requirement is to load the Right side chart based on the click event from left chart.
I can achieve it using go to report option. But the issue is total page getting refreshed while using this option. I feel bookmark option will be the best. But I don't think I can pass a value to Bookmarks.
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Dec 10, 2006
If you display the execution plan and run the following:SET STATISTICS IO ONgoSELECT ProductID, SupplierIDFROM ProductsWHERE SupplierID = 1I don't understand how come there is noBookmark Lookup operation happening to get theProductID?I only see an Index Seek happening on SupplierID.There is no composite index SupplierID + ProductIDso what am I not understanding here?Thank you
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Oct 7, 2011
I want to bookMark from one table to another in current report. Below are the 2 tables , when I select a
FromBrandName in the first table, it should take me to the second table row with the same
FromBrandName. Is this possible? Is there a function to access a specific running value other than First and Last?
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