I have read in a couple of books about overheads when a page split occurs on a heap (a table with no clustered index)
My question is - how (or why) would a page split occur on a heap (as the table is in no particular order)?
Hi,
I want to check if I have excessive page splitting a for a certain table/index does anyone know if it is possible to monitor page splits for a certain table/index?
Cheers
Jamie
Hi All
I am trying to copy data from one table to another with a conditional split to validate the date.
In my source table, the date field open_date is stored as string YYYYMMDD (19941231) while in my
destination table it is stored as a datetime field.
My source date has bad data in the field, ie invalid dates e.g ( 20012017, 19701043).
I wanted to use a conditional Split to filter records with bad dates into a file
I was looking for a function like ISDATE (open_date) = True then go to table
else put in file. But have not been able to find one.
Or if they is another way to achieve this, I would be interested.
Thanks much in advance
SQL Server 2005
We have a table that simply stores all changes to a specific record in another table and can get very large. The relationship is such there are many records in the transaction table for each record in the parent table. How many depends on how many times the record has been updated and can contain multiple entries for each column.
The transaction table contains a clustered index over a column that is defined as a UNIQUEIDENTIFIER. There are other indexes as well over business fields (basically foreign key columns). This obviously has some performance implications and becomes fragmented very quickly during heavy loads. Then as expected, the performance issues cascade to queries, etc.
Anyway, we are looking at two options - (a) removing the clustered index altogether and treat it as a heap or (b) add another column defined as identity (1,1) and make that the clustered index.
My initial research tells me the heap is not the way to go as there still may be performance issues with it. Using the second option guarantees me that all new data is always added to the end and will minimize the fragmentation. Keep in mind we do have regular maintenance jobs to rebuild / reorganize indexes and lob data.
Can anyone shed their thoughts on these two options for this situation?
Hi,
I am trying to run one of the mining models from the book "Delivering BI using SQl Server 2005" but I am running into "Decision Trees found no splits for model". The mining structure has 4 columns, the fourth one being marked as "Predict Only". My Cube slice for the model has sufficient data in the cube. I am lost.. Help!!
Regards
Hi, I've build correctly my report using the most efficient tools. I've made the preview and it worked just fine!However, when I export to PDF, it splits the report heigth into two pages, having the columns of my table and other controls splitted.
I'm already using the font size as 7 or 8 (depends), really small, I've tried hard to reduce their size, however the result remains the same...no resolution!!
Is there anybody who may have or had this situation?Any guests or help?Thanks a lot!
Hi guru,I've been new company for only a month and started analysing IndexFragmentation.After I ran DBCC DBREINDEX and capture data into permanent table, I 'veseen lots of tables with no indexes. These tables showed:Very low scan density,High extent fragmentationHigh Avg. Bytes Free per PageWhat are the best strategies to defragment tables with no indexes?I'm planning to make a rule that each table must have a clustered indexand this index must be created on the best column (highestselectivity).Please help.Thanks,Silaphet,
View 1 Replies View RelatedI have a big table (heap)... well, not so big, I have a small serverand I want to spread access to it across several new disks dedicatedonly to that table.I known its possible to do that creating a clustered index with "ONfilegroup" option but I want to maintain it as a heap, is there anyway to do this without dropping indexes/references - bulk unload -create table - bulk load - create indexes?.
View 4 Replies View Related
I am using Conditinal split in my package. I need to remove certain rows which are matching my criteria. The criteria requires using wild card characters like, first_name = '%john%'.
How do I achieve this?
Please help
Sachin
Hi,
I have started experiencing the following errors
"Unable to allocate memory for a hash node heap"
"The system reports 99 percent memory load. There are 8584744960 bytes of physical memory
with 5799936 bytes free. There are 8796092891136 bytes of virtual memory with 8794956038144 bytes free.
The paging file has 7447801856 bytes with 5201920 bytes free."
The packages running have been running for the last year with no issues. Admintidley they were the only jobs running against the Instance.
I have now introduced additional databases and packages.
The package do not over lap when they run so there is currently no contention for resource.
I have no idea where to start looking to identify the culprit.
I have observed the available pagefile being completely consumed and physical memory. The only way I can get it released si by bouncing the instance.
the only thing that has changed is pagefile. The system has 8GB RAM and was configured with a 4GB pagefile. I have recently created a second pagefile on
an alternative disk of 12GB and reduced the 4GB pagefile to 100MB and left it on the root drive. When I view the pagefile size in properties, it says that there
is only 100MB even though it creates a 12GB pagefile.
Can anyone shed some light on my problem?
I appreciate your help
Regards
Marcus
So I've stumbled across an audit table on one of our systems that has reached a hearty 180M rows in size.
The table is a heap (no indexes whatsoever).
Each record has a datetime value indicating when it was created.
I need to delete everything that was created prior to the last 6 months; what is my best plan of attack?
We have a highly transactional database. It was owned by a third party before but now both the database and the application is on our site and we are trying to improve this project. So, we have a big (902919 rows), heap table, which is getting bigger and bigger everyday and sometimes deadlocks occur. The table has only 4 columns, "token", "type", "value" and "cacheTime", unique index cannot be created. It has one index on "token"(char(36)) and "type"(varchar(50)) ("value" should also be included but it is nvarchar(max)).
<deadlock-list>
<deadlock victim="process670ba10c8">
<process-list>
<process id="process670ba10c8" taskpriority="0" logused="0" waitresource="RID: 6:1:14949918:1" waittime="417" ownerId="347523711" transactionname="SELECT" lasttranstarted="2014-07-01T17:43:35.233" XDES="0x117cf7da40"
[Code] ....
Facing deadlock issues in my ETL job .
The driver table , which keeps track of what datamarts ran and for what date range gets updated frequently during the etl run . There can be as many as 250 updates issued on this table in a single second.
Now this table is a heap , and there are no indexes on it .
During these updates , we encounter deadlocks causing the ETL job to fail .
Will adding an index faciltate?
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
View 1 Replies View RelatedI have bunch of heap tables and the fragmentation seems to be high, i am not sure whether i shall add index for them, as these tables are inserted and updated every day.
View 4 Replies View RelatedI 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.
View 3 Replies View RelatedHello 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€¦
I followed the tutorial posted at [URL] ...
Everything was ok until the last step where I had to process the mining structure which resulted in a warning
"Informational (Data mining): Decision Trees found no splits for model, Tbl Decision Tree Example."
What does this error mean? How do I resolve it? Also, I only see the first level in the Mining Model Viewer, I don't see the levels 2 and 3.
The following objects are placed on the Report body of the Report pane of SQL Server 2005 Reporting Services :
<textbox: expression1>
<textbox: expression2>
<table:table1 with at least 30 columns and 30 expressions>
<textbox: string1> - considered as the Title in the Footer section of the report
<texbox:string2> <textbox:expression3>
<textbox:string3> <textbox:expression4>
<textbox:string4> <textbox:expression5>
<textbox:expression6>
I can't find any explanation why is it string1 and string 2 of the footer section of my report displayed separately from the expression3 which is aligned on it and the rest of the object on the second page.
The expected design is that all Footer items should be displayed together of whether it is placed on the first page or on the last page.
As a workaround of this, I converted string 1 into an expression (Added = and enclosed the string with double quote).. As a result, all of the items in the Footer section are now placed together on the last page of the report.
I also remember one of the issue I encountered before where the Footer items where placed together on the first page and still have space at the bottom of the page, but then expression 6 is forced to display (alone) on the last page of my report.
I can't find any discussion related to this, I wish somebody could give me an idea why RS behaved like this.
Thanks in advance
Fit an intere table in same page without page break for save the excel export.
My table has a Group for order my dates.
I need to have the intere table in the same page, i don't care about blank space at the end of the page.
I can't use the page break beacuse i need an excel export in a unique sheet..
I have tested.. every page break..you'll have a different sheet in your excel export
I need something like this
page 1
Zone
1
2
3
4
5
6
7
7
8
9
..
page 2
Zone
1
2
3
4
5
6
7
7
8
9
..
but an unique sheet in the excel export
Hello,
If I have a report that includes a page header, the report viewer will render the report at the full width, but if I hide the page header and show only the body it will use the absolute width of the report.
I have a 7" wide report, with .75" borders set on each side.
Interactive & Print size are set to 8.5x11
Changing these sizes has no effect on the behavior of the viewer, which appears to ignore them.
When I view this report in the local viewer the contents fill the window if there is no page header.
If I enable the page header then the report is drawn at 8.5" wide, leaving a _big_ white border on the right side.
Any comments or workarounds that anyone knows? I know the local viewer is not a standard configuration (at least it seems) but it is what we need to use.Thanks,//Andrew
Hi, I wanted to know that can we access a webpagefrom a store procedure in sql server 2000 like we run a exe file from sql server. Bye.
View 1 Replies View Related
Hi,
I issued this command on Tempdb but it doesnot shrink the file.
dbcc shrinkfile (tempdev_3,1)
go
Messages:
-----------------------------------------------------------------------------------------------------------
DBCC SHRINKFILE: Page 4:11283400 could not be moved because it is a work table page.
-----------------------------------------------------------------------------------------------------------------------------------------------
I have checked that there are no tables associated with any user in tempdb. Any help is appreciated.
Regards,
Razi
How can I print a field that is in the dataset on each page? I added a textbox in the Page Header and use =Fields!ProjectName.value in the value property. I got an error "Fields cannot used in page header and footer."
How can I have the table header shows on each page? Currently if the data goes to the second page, there is no table header.
Thanks.
DanYeung
Hi Team,
When i view the Report from SSRS Report preview Tab it's working fine, But when i deploy that and try to view in the IE
I am seeing the Body background color in between the image and page border of the page footer how to solve that?
Hi All,
In my SSRS report. I have a report which has only one page. In preview it is showing as only 1 page but when I am printing the report. I am getting two printouts with the second page as a blank.. Please help me in printing the page that contains report. Intially I used a Page header, at that it used to print the blank page with a header only. Now as I removed the header it is printing the page without header i.e Blank Page.. So please help me in prinitng a single page that has the report. It is urgent,..
Thanks
dotnetdev1
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?
View 2 Replies View RelatedI 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.
View 0 Replies View RelatedHow do I add a hard page break in the middle of a two page report? I use Microsoft reports for windows.
View 5 Replies View Related In SRSS 2005 (SP2) my page header seems to take up the same amount of space on the
1st page it would take if it were to print; I have PRINT ON FIRST PAGE set to
false - the header doesn't print - it just leaves the same amount of space.
How do you get the report to ignore that. I do have a report header built
into the body of my report. I have tested this by increasing the size of my
page header and it does move the report up or down on the 1st page by that
amount.
I'm hoping that someone can shed some light on this for me... I'm using SSRS SP2 and I have a basic report using a single list object which, at the moment, should print only two pages based on the results of the underlying query. When previewing the report, it shows the two pages. But when the report is printed or exported, there is a blank page before each report page.
What I've done so far:
1) Verified the properties of the list object and made sure that 'Insert a page break before this list' is not checked
2) Ensured that there are no hidden objects that could be causing this behavior
3) Ensured that the report size + margins are within the boudaries of an standard 8.5x11 paper size
Any suggestions on something that would solve this issue?
Sam
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.
Hi all
I have a problem which I am really struggling with. I have a report that normally spreads over three pages. We have a list setup so that for each customer it picks up fees and expenses and displays it in sections. We have a page break after FEES so that expenses start on a new page. FEES and expenses are tables.
We need to have a page footer set for the bottom of the report but to appear on the first page only per customer. I.e. we do not want it showing on the EXPENSE pages. We have played with the IIF command but can not seem to print htis per customer only by using global variables.
=IIf(Globals!PageNumber=1,"(Please note 30 day invoice period)
The example above however only prints on the first page of the entire report. So if three customers appear then this will only appear for the first customer and I have a feeling I may not be able to link this to list.
If I can not use a page break and enter this into the list then I have a problem with the text field moving up and down depending on the size of the FEE section. For example if 5 fees are brought back then the text field will be lower then a customer that has only 2 fees.
I after a solution that can either allow my page fotter to appear every time a new customer appears on a page and hiddern for the sub sheets. Or the ability to allow my text field to start at a fixed position on my report. Has anyone had a similar issue.
thank you
Michael