SQL 2012 :: How To Keep IAM Page Track Of Data Pages
Sep 15, 2014
I in a table or partition, the first page is an IAM-Page if I'm not wrong, this page keeps track of the extents.
In the first extent to where the "first_iam_page" points to, the extent is a mixed extent, therefore the pages can be from different tables or partitions, correct? How does my IAM-Page map the right pages to the corresponding table? the following extents are all uniform of one table type, so I guess it doesnt matter then. But n, how does it keep track of which pages belong to which tables in the first extent?
My second question is, the first IAM-Page is obviously an IAM-Page, but there are also GAM , SGAM and PFS Page files... where are they stored? Because when I create a table and insert a big value(8000) into it, it reserves 16KB for that table, one for the IAM-page, and one for the first data-page. But where can I find the GAM,SGAM and PFS page files? or are they not page files, just some other structures?
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Oct 2, 2014
in microsoft doc there is written on the topic of BP Extensions with SSD's in SQL Server 2014: only clean pages are written to disk... does this mean data pages that have not been modified yet? or also those data pages that have already been modified, and where log has finished writing and the transaction has been marked as commited??
why are there clean data pages being written to L2 cache to make space for other not modified pages? I mean, shoudnt they be modified first, before letting other unmodified data pages into the Cache? I mean they have still to be modified..that makes no sense to me to page them out and page them in again just for other data pages...
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Jul 9, 2007
Is it possible to say for example have the first page that contains a chart in portrait layout and the rest of the report that is a table in landscape layout?
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Sep 21, 2005
I have a text box that contains a memo field. It's located in the middle of the report page. If the data is too big to fit on the bottom half of the report, then it goes to the next page. This leaves a blank bottom half on the first / initial page. How can I get the textbox to split across pages and not go to a new page automatically?
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Jul 5, 2007
If a single row of data spans a page then the column header is not repeated until the next row on the next page.
Is there a way to overcome this?
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Feb 14, 2008
Friends,
I am using SSRS (Sql server reporting services) for one of my report related to EIS-MIS.
i want group wise page numbering and also display the no. of pages for that particular group.
e.g suppose group 1 has 5 pages then it should display
page no. 1 /5, 2/5,3/5,4/5, 5/5. now suppose group change then it shold display 1/4 like this
I have already implemented groupwise page numbering using then custom code and i have call that function from the header portion of the report.
now the question is how can i display the total no. of pages in particular group?
For that i have add one count column in query itself but as we know we can't use field value in header and footer portion and also we can't use global variables in data portion.
So kindly guide me
Thanks,
Manoj Patel
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Apr 10, 2015
I can get a snapshot of tables in tempDB, but I would like to track which procs are causing the load in the tempDB.
I think I can sample and record objects in the tempdb, but I would like to record the proc creating the most tempDB usage, and disk read/writes associated with those procs.
The DMV's give usage in the individual DB's, but what's a good way to correlate procs in the DB's to tempdb usage?
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Nov 28, 2006
Hello I have a project that uses a large number of MS Data access pages created in Access 2003 and runs on MS SQL2005.
When I am on lets say my client, (first page in a series) data access page and I have completed the fields in the (DAP), I am directing my users to the next step of the registration process by means of a hyperlink to another Data access page in the same web but in a linked or sometimes different table.
I need to pass data entered /created on the first page to the next page and populate the next page with some data from the first page / table. (like staying on the client name and ID when i go to the next page)
I also need the first data access page to open and display a blank or new record. Not an existing record. I will also be looking to creata a drop down box as a record selector.
Any pointers in the right direction would be appreciated.
I am some what new to data access pages so a walk through would be nice but anything you got is welcome. Thanks Peter€¦
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Oct 17, 2014
We have a particular database sat on SQL Server 2012 box along with about 20 other databases.
What I require is a method/Script/Audit that will simply track anyone who logs (successfully / unsuccessful) into this one particular database on the server (The single database is the key as the end user does not want information on any of the other databases that sit on the server), it also has to log time the attempt was made and it must track the logins via SQL Server or the application itself that is attached to the database.
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May 24, 2006
I am staring to lose my mind on all this "work-around" BS in trying to create a dynamic header.
I have a report with contains a table, whose first two lines are a header line in which I want to repeat on each page. Then I have about 20 detail rows of information related to the header. The 21st detail row is a merged cell that contains a subreport relating to the header item.
When printing to PDF, the detail rows consume about half the page and the subreport is anywere from half a page to several pages long. When the subreport is more than half a page, it skips the end of the first page and starts on the top of the next page, leaving the bottom half of the first page blank. No matter what I set the page breaking to, it continues this behavior. In addition, when the subreport data spans more than one page, my parent table's header row will not print to the next page even it the RepeatOnNewPage is set to true.
I am coding this way because I have found no good way of creating a dynamic header that will correctly and consistantly display data that has detail that spans more than one page.
Any thoughts on what I might be doing incorrect?
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May 28, 2015
In sql 2012 i want to track the blocking details at a specific time is any query to get the data ?
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Sep 30, 2015
Any script to identify when Stored Procedures were changed?
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Jul 2, 2007
Hi
I have set my SQL server express server and have installed SSRS (reporting services) and Business Intelligence Studio.
When i create a new report and delpoy that report, it successfully deploys it.
when I go to the below URL's from the laptop browser, I am successfully able to see my reports
http://lemd342608/Reports$SQLExpress/Pages/Folder.aspx - Report manager
http://localhost/reportServer$SQLExpress - report server
Now when I go to a external machine besides my laptop, and type in the 'URL's I am getting 'Page cannont be displayed error'.
DO I need to configure anything in order to allow other users to access my SSRS. I have added the users in the Reporting manager also.
Thanks
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Mar 12, 2015
I have a report with tablix. when tablix returns no rows Footer is coming all the way up . How to display the footer at the bottom of the page all time.
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Sep 28, 2015
I am running a DBCC SHRINKFILE on "FILE1" of a database (it has fileid = 1)...intent is to remove 70GB of file space:
DBCC SHRINKFILE (N'FILE1' , 400000).
For the SPID that's doing the shrink, In activity monitor you can see:
Waittype: PAGEIOLATCH_EX on resource: 9:3:15411328
(the DB is dbid=9)
But why does it need a page from fileid=3? Are there page dependencies between files that prevent moving a page within a given file? Does it need that fileid3 page to come along?
Its just sitting there in the SUSPENDED state for the last hour....I am going to leave it another 5 hours or so before cancelling.
The dm_exec_requests has an estimated percent complete at 83% and holding....not sure if I can believe that.
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Nov 6, 2014
How Indexes are allocates on pages? And If a CREATE INDEX Statement Executed on a query Window, Query processor meets and executes these query. However it was meet, who decides to separate indexes onto pages? Storage Engine or Query Processor(Query Optimizer)? Does it work like UPDATE-Statements in Query Optimizer?
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Jun 26, 2015
Say I have a report with 3 pages, each page has a different dataset and takes some processing time.
is it possible to give the user the option to just run the first page say if thats all they need?
Reduce the processing time of the report to only that that is necessary?
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Jun 16, 2015
We found an interesting 'issue' in one of our productive user database:
The output of msdb..suspect_pages table:
db_idfile_idpage_idevent_typeerror_countlast_update
16 2 22 32015.06.12 10:40
16 2 3 3 3 2015.06.12 10:40
16 2 6 3 3 2015.06.12 10:40
16 2 7 3 3 2015.06.12 10:40
16 2 1 3 3 2015.06.12 10:40
The problem is, that this user database only has one data file and file_id 2 is the log file.I understand that the event_type shows checksum and torn page error but in the log file? DBCC CHECKDB shows no errors and the database is part of an AOAG in synchronized state.We have log backups in every 15 minutes.
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Nov 27, 2007
Hi!
I've posted a feedback with Microsoft to see if we can get them to fix the issue described below, but so far no one from Microsoft has commented to let us know what they're doing about this problem! I'm posting this here to see if maybe we can get more people to rate this feedback or chime in on what a pain it is! Please feel free to add your own comments or how you had to work around this issue and whether or not you think this is something Microsoft should be addressing NOW.
https://connect.microsoft.com/SQLServer/feedback/ViewFeedback.aspx?FeedbackID=311679
Provide Individual Page Numbering per Group and Total Pages per Group
Currently in a Reporting Services report, you can't readily reset the page number for each group in a table, nor can you display the total number of pages per group. For example, if I'm printing invoices and each invoice is a separate group, I'd like to be able to print "Page 1 of 5" , "Page 2 of 5" etc. for the first invoice, then "Page 1 of 3" when the next invoice begins, and so on. This was easy in Crystal Reports. I realize that Crystal Reports has a two-pass process that enables that kind of pagination. However, this is REALLY important functionality that's just missing from Reporting Services and I'm hoping you'll provide it REALLY SOON! Yeah, I know there are work-arounds if you can know exactly how many rows of information there are on each page. But gosh! That's not practical, especially if you have second level groups inside the main group or text blocks in rows that can 'grow' to more than one line. I've read a couple of work-arounds, but none of them works correctly and consistently when more than one user is running the same report or when you print the report while you're looking at it on the screen. I still may need access to the overall report page number and the overall total number of pages, so don't get rid of that. It's just that if you're doing this already for the entire report, I don't see why you can't do it per group! Lots of people have been asking for this for years, and I don't understand why it hasn't been implemented.
I've read a few articles on this topic, but no one has come up with a decent work around. My theory is that Microsoft should be addressing this immediately. This is major functionality that's just plain missing from SSRS and should have been there from the start. If anyone from Microsoft can let us know what's going on with this issue or if anyone would like for me to clarify this further, feel free to let me know.
Thanks!
Karen
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Aug 23, 2006
I want to create a page(using GridView) where it will detect changes made in the database and display it for Administrator observation. I've created a table name history for this purpose.
History
guid (uniqueidentifier)
dateCreated(datetime)
lastDateUpdated(datetime)
changesMade(varchar(50)) ---- eg; dropdownlist
oldValue(varchar(50)) ----- compaq
newValue(varchar(50)) -----dell
updateBy(varchar(10)) <------ username of registered user
comNo(int) = foreign key for Computer table
History data will insert data whenever a changes made. Could anyone advise and direct me how to do this function. I was thinking of using stored procedure to insert the data. Thanks in advance.
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Feb 5, 2007
is there a step by step paper to get there? here is what i need to consider. I Iwill have many customers that will need their own set of records and access pages "branded for their company" each customer will have many clients. I am hosting this application on a windows 2003 server with SQL 2005 server enterprise.
I am using windows authentication, I have created a username in windows, then i added the windows user in SQL management studio in security, granted "DB Read" and "DB write" and again under the database security tab. still from the web authentication fails. i must be nissing a step or two?
I expect to set up a username for each database as i setup new customers.
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May 7, 2015
I have a report with multiple tables. I need to show each tables in different pages. When there is no data for tables/tables , it is coming with the next table which has data. I have given "Add a page break after" option in the tablix but still the tables are coming together when no data available. How can I show it in different page?
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May 1, 2014
Is there any way to control this scenario, I know trick to put 10 on each row ,but I need to split them unevenly, 10 on first page and the rest on second page. is it possible ?
=Ceiling((RowNumber(Nothing)) / 10)
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Feb 27, 2008
Hi - I am pretty new to Reporting Services. I need to create a report where a single result row from the Select Statement populates an entire page of data. The regular grid or Matrix reports don't fit this need. Is there a simple way to do this?
Thanks - Dave
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Jul 20, 2005
I am trying to understand how the data in sql server is stored andalso regarding fill factor and page splitting.1) My first question what is the difference between Index pages andData pages.and how are they different for clustered and non clustered indexes andheap tables.2) What is the relation between index and data pages.2) BOL says that fill factor is used to define the amount of freespace on each page of index. I am confused here what does index pagesand data pages containfor clustered/non clustered/heap tables.3) Why does page splits occur and do they occur due to the lack ofspace in index or data pages?Thanksskura
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Jul 23, 2005
Hello all,SQL 2000 on Windows 2000. If I go into all tasks, maintenance plan, itgives me an option to reorganize data and index pages. When I check onit, it populates the line "change free space per page percentage to" andputs in 10 in there. Is this the default for free space? Is it thedata pages that will have 10% free space or just the index pages? Aredata and index on the same pages?Thanks,Raziq.*** Sent via Developersdex http://www.developersdex.com ***
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Jul 20, 2005
Dear All,I have developed a Data Access Page with Access as a project. It isconnected to a SQL-Server database. I try to edit the data in the table andam not able to do so. I might be missing some permissions. I have changeda number. What am I missing?Thanks in advance.Jeff Magouirk
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May 10, 2007
I have a question about loading data on the page lode event. The question is more conceptual then how to.
Using C#, I would like to make a call to a SQL 2000 Server, with the use of a stored procedure return one row with eleven fields. Then use the data to fill five different controls. There is no manipulation of the data it is just presented as information. With a DataReader and the GetValues method using the resultant array I can fill the controls (or can I), or with a DataSet and the Load method do the same thing. Now this code can be placed in the code behind page or it can be implemented in a class. This is the only page that uses this combination of fields and controls; however I would think a more generic call to the data could be made then pick and chose the fields as needed. What process makes the most sense? Is what I just described even possible (as yet I haven’t tried it)?
As always thanks in advance for any thoughts, comments, and suggestions.
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Mar 2, 2007
IF (SELECT OBJECT_ID('t1')) IS NOT NULLDROP TABLE t1GOCREATE TABLE t1 (c1 INT, c2 INT)DECLARE @n INTSET @n = 1WHILE @n <= 454BEGININSERT INTO t1 VALUES (@n, @n)SET @n = @n + 1ENDSELECT name, indid, CASE indidWHEN 0 THEN 'Table'WHEN 1 THEN 'Clustered Index'ELSE 'Nonclustered Index'END AS Type,dpages, rowcntFROM sysindexesWHERE id = OBJECT_ID('T1')name indid Type dpages rowcnt---- ----- ---- ------ ------NULL 0 Table 2 454I have a table containing 454 rows of two columnsof type INT with each being 4 bytesc1 int = 4 bytes+c2 int = 4 bytes=8 bytes per rowIf I entered 454 rows : 454 * 8 = 3,632 byteseach SQL Page is 8KB = 8 * 1024 bytes= 8,192 bytesa data page header takes the first 96 bytesleaving 8096 bytes for data and row offsets.Each record uses a row offset at the end of the pageconsisting of 2 bytes. 454 * 2 = 908 bytes.8096 - 3632 - 908 = 3,556 bytes. Should this befree data bytes?For a heap table, does SQL add an internal uniqueidentifiercolumn also? or my question is when does SQL adda uniqueidentifier? I am reading Inside SQL 2000 andtrying to understand a few things.A uniqueidentifier of 4 bytes gets added when a clustered indexexists but it is NOT a UNIQUE clustered index. AND onlyif duplicate record is added those two records only geta uniqueidentifier value.But in my example it's a heap table with no indexes. Evenon a heap table with no indexes a ROWID or Uniqueidentifierget added? Based on the INSERT statement above allvalues are unique.So what am I missing to understand why 453 rowsmake one data page to be used whereas 454 rowsmake two data pages to be used?Thank you
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Feb 18, 2014
I started receiving these alert messages, and after doing some re-search still can't figure out how to totally resolve it. From what I gather the value Microsoft stipulates 300 for PLE is not accurate if you running a 64 bit OS and dependent of the amount of RAM you allocate to SQL.
If I allocate 20 Gig of RAM to SQL, The PLE should not drop below 1500 - (PLE should be 300 for every 4 GB of RAM) (20/4)*300
During the course of the day it sometimes drops below 1500, so my question is how can I further see why and what query is causing this to happen???
I setup a monitoring job as mentioned by Steve Hood to capture results for me every 20 min.
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Sep 17, 2014
I got an error that says to run DBCC CHECKTABLE, but I can't find what table it is. It gives the db id and page Id. I ran DBCC PAGE but I could not figure out what object is using that page. I posted the error and dbcc page results below. Also, Slot 74 is not missing. I could not find m_objId or AllocUnitId in any system tables . Also, I got the same error for this db several other times. When I ran dbcc checkdb I did not get any errors. This is a SQL 2012 db created by SharePoint.
Why is m_nextPage and m_prevPage = (0:0) ?
Does the m_type=3 change how a page is linked?
I found Type 3 – text mix page. A text page that holds small chunks of LOB values plus internal parts of text tree. These can be shared between LOB values in the same partition of an index or heap.
Error2 from log--
Message
The Database ID 7, Page (1:14002), slot 74 for LOB data type node does not exist. This is usually caused by transactions that can read uncommitted data on a data page. Run DBCC CHECKTABLE.
Message
Error: 7105, Severity: 22, State: 6.
[Code] ....
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Nov 11, 2015
I have created one reports but all the records are displaying on one page.find a solution to display the records page by page. I created the same report without group so the records are displaying in page by page.
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Mar 8, 2014
I have a dataset for report builder 3 that has 8 fields. The data for the report needs to be grouped by the first field. The 2nd field is a string that describes the group field and this too needs to be on the same row as the group field. This 2nd field need nearly the full page width. The remaining 6 fields need to end up rendering below the first row. I can't figure out how to get report builder to put the first 2 fields on the first row and use the full page width.
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