I am about to rebuild all my indexes on a database that is very heavily fragmented. In looking at the report, seems that 80% or more tables are 90%+ fragmented.
My understanding is that fill value value is used for performance reasons. Our shiny new backend SAN is 100% SSD. If solid state can provide a sub-millisecond response, is fill factor still necessary at the cost of additional space being used used?
Currently we have tables (in sql 6,5), many of them do not have primary keys.
While I was trying to re-index (re-org), many of them got an error:
"fillfactor 204 is not a valid percentage; fillfactor must be between 1 and 100."
(many tables' fillfactor exceed 100 or more...)
How can I fix them so I can upgrade to sql 7 ?
Thank you for your help.
I am really confused about this whole fill factor thing. The way I understand it, is if you have a table whose data remains pretty much static, you should use a higher fill factor. Suppose you had a database where you had at most 150 transactions a day that changed the data, should the fill factor be left at the default(0) or increased? How do you determine how much to increase it? Is there a rule of thumb that suggests if you have x number of changes against a table, you should have a fill factor between y and z percent?
Please Help
Chris
Hi all,
While creating indexes for a table, I specified a fill factor of 70%. I then inserted a few hundred rows into the table. Is it possible to check to what percent the pages are full after the rows have been inserted?
Thanks in advance,
Praveena
You have a db with 50,000 records and you want to add 100,000 more. What should the right fill factor be? Is there a way to "calculate" a fill factor if you don't want to use default? Any help is appreciated. Thank you.
View 3 Replies View RelatedIf fill factor is specified as 100 for a table what will be the impact of this?I want to know any updation or insertion will be possible or not?
View 3 Replies View RelatedHellow, everyone"
I have a web online table that is inserted about 1500 record one day. Each night, a DST is running to pull all data to anther database. How to set fill factor on a one column index to get the best performance? Current fill factor is 80%.
Thanks
ZYT
Hi experts, I would like to ask regarding FILL FACTOR. I observed that our system's loading is a bit slow, and some of the modules take 1 to 2 minutes loading. Maintenance activity is regularly executed based on the scheduled sets. Then I tried to checked the tables indexes/keys turns out that the FILL FACTOR is set to ZERO(0). I would like to know if the FILL FACTOR set to zero will be a factor for the system to slow down..????
Darren Bernabe Blanco
How do i find out how much fill facot has been spcified in given table?.
View 1 Replies View RelatedWhat are the criteria to decide the optimal(or close to optimal) fill factor?
Any input is appreciated.
You have 50,000 records in a database file and you know you want to add another 100,000 records in the next several weeks. What fill factor would you use to maximize performance?
A.0(default setting)
B.30
C.70
D.100
which one is correct? And how to calculate fill factor?
I have some non-clustered , non-unique indexes on a medium sized table (25,000 rows).
The fill factore is showing 248% on these indexes. I have tried setting the fill factor to various values 100% or less. The re build index seems to work, however the est min/avg/max size of the index all show appx 160Kb, whilst the actual size is in excess of 50Mb !!
We run a weekly rebuild of all indexes overnight, without any fill params and following this the fill on these indexes goes back to 248% !
I have also dropped and re-created the index with a fill of 100%, and it has still reverted to 248% following the weekly rebuild.
I have also looked at the server config, and the fill factor there shows a running value of 171% !!, although the current config is set to 0.
The server is stopped every evening, so no way should the config have a value of 171, especially since the max allowed value is 100.
Any advice/assistance would be gratefully received.
I know what fill factor is ... and know that I should set it high when I have static data tables (where the data rarely changes) and low when I expect to have page splits ...
but does anyone know what affect on performance this setting has ? I don't quite get what Books Online says about it.
Thanks
Carol
Hi ,
Can u plz tell me what is fill factor and what its role in defining the indexes. It is by default 0% and can be set upto 100%, but what it makes difference if i change the percentage? Where it is exactly impacts? If u know any links then plz forward me.
Thanks And Regards,
Shailesh
I am trying to set up the relationship (Primary Key and Forign Key) in several tables. I would like to find a way also be able to set 'Fill Factor = 90%' in the script. Here is the code that i have so far:
ALTER TABLE Req
ADD CONSTRAINT FK_Req_Bow FOREIGN KEY ( BowID )
REFERENCES Bow ( BowID )
Any help would be greatly appreciated!
J827
Hi there
Is there any such thing that you can find the current Fill Factor for each indexing? The only thing that you have an indication is by looking at DBCC SHOWCONTIF > Scan Density [Best Count:Actual Count].......: 100.00% [0:0] and if this value is not reaching 100% means may have an issue with fill factor ?!!?
Also, how about SQL2000?
Thanks
HiThere are a lot of articles about the fillfactor.I did change the fill factor and that did not work as intended.How do I get back to the default fill factorI am using sp_msforeachtable undocumented database procedureand when the indexes are rebuilt the fill factor that shows upin origfillfactor is the one I am trying to move away fromYour help will be appreciatedVince
View 4 Replies View RelatedTurn away pure key zealots
I have a clustered index that starts with an INT IDENTITY(1,1) column and therefore you can only add data to the end of the cluster. What I'm confused about is the relationship between this and the fill factor. In a normal fill factor scenario you'd be worried about inserts causing page splits but if you can only append to this cluster does this mean I should set the factor to 100% even if I'm expecting a large number of inserts? Basically I don't understand what happens when you run out of space on a page on a B-tree if it's based upon an ever increasing number.
The tables in my database somehow are getting set with a fill factor of 90. In the properties of the server/Database Setting, the "Fixed" option is unchecked. Last Friday, I reset the each table to have a fill factor of zero, but when I came in today, the tables reset themselves to having a fill factor = 90. Any ideas of why this is happening and how I can stop this? Your help is greatly appreciated.
Mark
If I have a clustered index on only one column of the table, the column being the primary key and an identity column ( int datatype, Ascending CIDX), then can I go ahead and have the Fill Factor be 100%. I may add more rows at a later date to the table.
Let me know.
Hi,
Now i am doing a R&D on indexes in SQL 2005. I want to know clearly what is the actual uses of Fill Factor? What is advantage and disadvantage of it?
Where it should use this fill factor?
Please answer me as soon as possible.
Ganesh.
Are there any rules of thumb to apply when entering the Index Fill Factor?
I just want to make sure I'm enter a optimal value.
Using MS SQL 2000.
Thanks!
--PhB
As the title says I re-indexed all of my databases using the wrong fill factor. Instead of using 90% as the fill factor I misunderstood and set this at 10%. So I believe my databases are now packed with a ton of unused space. The DB sizes should be about 5-6 GB but have since grown to 20-40GB. I am very new to SQL administration and don't know of a safe way to remove this unused space so that my databases return to their normal sizes. The databases do not grow very much at all so the free space is not really that necessary.
View 9 Replies View RelatedIs the "Fill Factor" percentage is same as the "change free space per page percentage to" option in the Rebuild Index task wizard?
OR Is it inverse of it ?
Any comments and suggestions are welcome.....
Jas
The below data come from table table1. Instead of below result Ex1: I need output similar to the ex2.
Ex1:
CaseNumberStart CaseNumberEndExported
15000013150000131
15000014150000141
15000504150005041
15000505150005051
Ex2:
CaseNumberStart CaseNumberEndExported
15000013150000142
15000504150005052
How to get the result similar to Ex2, instead of Ex1. (ie., case-number is in sequential order then no need to break), And it should suit large dataset, I will finetune, if any performance issue.
We had a requirement that need to sum the data based on quater we will be having 12 months data in the system for an year suppose we have 12 records for 2014 year. jan month sales data should be same when we were in feb month it should sum jan+feb sales and should show in sales column whereas we were in march month it should sum jan+feb+mar sales, then same for next quater also apr month it wil be same value in may it should be apr+may in may sales value etc ....
We will be having date column values as 201401,201402,.....
How can we implement in sql sever performance should be good.
I would like to pull data from two seperate columns based on the vaule for MakeFlag. So if MakeFlag = 0 I would like the description to show but anything else I would like catalog description to show up.
DECLARE @MyVari varchar(20)
SELECT [ProductID]
,[prod].[Name]
,[ProductNumber]
,[MakeFlag]
[Code] ....
I have data in Sql table , I want to convert it to xml using xsd using script component in ssis.
View 0 Replies View RelatedI am pulling down out of range values from a single table on one database to a different table on a different database on a different server (one i have full access to). Basically, it looks something like this:
id1 value1 prev_value1 value2 prev_value2 date prev_date
id2 value1 prev_value1 value2 prev_value2 date prev_date
id3 value1 prev_value1 value2 prev_value2 date prev_date
all the "prev"'s are null. I want to do one do one query that will get me the previous values and dates for each id from the original database. how to do this.
I have a table like the following (with much more data, but the concept is the same) with Dates and Actions for People and a column called Action with beginning Dates and end dates.
(I attached a picture because I could not figure out how to Format it)
begin Date end Date Name
begin 2014-10-15 end 2014-10-31 phil
begin 2014-09-18 end 2014-09-30 phil
begin 2014-08-21 end 2014-08-23 John
I need the query to be like this. The idea is to have the query grab the next 'END' not all Ends, which my attempts have done i.e. I get not just the closest end to the begin date, but ALL Ends with the same Person.
I Need it to look like this:
begin Date end Date Name
begin 2014-10-15 end 2014-10-31 phil
begin 2014-09-18 end 2014-09-30 phil
begin 2014-08-21 end 2014-08-23 John
There can be different People so the query Needs to return the beginning and end rows for the Person in sequential order.I can't figure out how to select only the 'next' end. My query always gets 'end' values that have a 'begin'. I
Does there a way or script to find the rows, space used by the specific tables based on every year.
View 9 Replies View RelatedI have below records coming in from source files
ProdName Amount TranType
P1 100 A
P1 100 S
P2 200 A
P2 205 S
In case the ProdName is same, and Amount = or (within +/- 5%) of Amount, I have to update the TranType column as IN/OUT respectively as shown below in the tables.
I am okay with using 2 different tables if needed as in the records comes in one table and then i can reference that table to upload the values in another.
ProdName Amount TranType
P1 100 IN
P1 100 OUT
P2 200 IN
P2 205 OUT
The order of the records coming in can be different order, they need not be subsequent.
This is happening in SQl Server 2008.
I have this main chart setup. It pulls data from a query based on the selected parameters.
I want to create multiple charts for every catagory in the result set.
On the main chart there is a catagory called "Missing".
I want a chart for this category to display when the main chart is loaded. So below the main chart it would show a chart for each of the categories on the main chart.
Basically this report returns information on a certain part number displaying its problem types. Then I want it to create other charts for each problem type displaying the problem sub-types.