Fill Factor -discussion
Apr 4, 2001What are the criteria to decide the optimal(or close to optimal) fill factor?
Any input is appreciated.
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Fill Factor Fix
Apr 3, 2001Currently 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.
Fill Factor
Aug 13, 2001I 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
Fill Factor
Mar 12, 2001Hi 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
Fill Factor
Jul 16, 1999You 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 RelatedFill Factor
Jan 18, 2005If 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 RelatedHow To Set Fill Factor?
Aug 27, 2007Hellow, 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
Fill Factor
Jul 13, 2007Hi 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
Fill Factor
Jul 14, 2006How do i find out how much fill facot has been spcified in given table?.
View 1 Replies View RelatedHow To Calculate Fill Factor?
Aug 9, 2001You 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?
Index Fill Factor > 100 !!
Sep 14, 1998I 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.
Fill Factor And Performance
Jun 7, 2002I 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
What Is Fill Factor For Indexes
Aug 25, 2004Hi ,
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
How To Add 'Fill Factor' In The SQL Script
Oct 13, 2004I 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
Fill Factor In Indexing
Feb 21, 2008Hi 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
Default Fill Factor
Jul 20, 2005HiThere 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 RelatedFill Factor Confusion
Jul 31, 2007Turn 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.
Database Defaulting To Fill Factor = 90
Aug 19, 2002The 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
Clustered Index Fill Factor
Jul 20, 2004If 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.
Pl Explain About Fill Factor In Sql 2005
May 27, 2008Hi,
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.
SQL Server 2008 :: Fill Factor And SSD Based SAN?
Jun 14, 2015I 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?
Index Fill Factor % Rules Of Thumb??
Mar 21, 2007Are 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
SQL 2012 :: Re-Indexed With Wrong Fill Factor And Now All Databases Are Huge
Jan 24, 2015As 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 &"Fill Factor&" Same As&"Change Free Space&"option?
Aug 21, 2007Is 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
NEW SQL DISCUSSION GROUP
Jul 5, 2001Dear all,
There is now a NEW SQL discussion Group currently being tested;
http://www.baysignia.com/discussions/discussions.xml
Try it out and send comments to faq@baysignia.com
Many Thanks for your comments
SQL DBA
baySignia Systems
Index Discussion
Mar 23, 2004Hi Folks,
Got a topic open for debate.
We currently have an archive table - DDL
CREATE TABLE [dbo].[Audit] (
[id] [int] identity (1,1) NOT NULL ,
[col1] [char] (10) NOT NULL ,
[col2] [char] (15) NOT NULL ,
[col3] [int] NOT NULL ,
[col4] [varchar] (50) NOT NULL ,
[col5] [datetime] NOT NULL ,
[col6] [varchar] (4000) NULL ,
[col7] [char] (3) NULL
)
GO
This table grows to about 40 million rows during the course of the month. The table has a clustered index on the id field and a non clustered index on the col2 and col3. The id column is not used in queries. At the moment we run weekly dbcc reindexes on all the indexes. We are running into a space issue on the reindex of the clustered index (copying the whole table out , ordering etc) and are considering dropping the index or changing to a non clustered index. (The DBCC utility that we have built will only rebuilt all the indexes or none at all.)
I feel this is not a good idea and know my reasons. I would like some input as to why this might prove a bad idea.
Will it increase page splitting? Will the table performance be impacted even if the queries are not specifically using the clustered index?
What are the reasons for and against?
Thanks Folks
Discussion Forum - Datastructure
Jul 27, 2005I'm creating a discussion forum for my website, using Sql Server 2000. I need to display 'Number of threads', 'Number of posts', 'Last post by' (username/id and date) for each forum, and 'Number of replies' and 'Last post by' (username/id and date) for each thread.Here are a couple of ideas I have come up with to solve this problem:1) Poll the database (using a stored procedure that returns the number I'm looking for) for each forum when I loop all the fourms. - I suspect this approach isn't optimal, since it creates more traffic to the database.2) Have fields in my Forum and ForumPost tables for 'Number of threads' and so on. Now, create triggers that updates these fields every time a post is made. - I guess this would be much more effective than the first apporach, since everything is done on the database server directly.Are there any other ways that are better? Please advice! Thanks a bunch for any help!
View 7 Replies View RelatedMS Access Vs. SQL Server 7 Discussion
Mar 29, 2000I'm sure this has been a topic in the past. I would like to build a fact sheet about each one and do a compairison. Are there any articles/links/resources out there that speak to this issue?
Thank you,
Nathan
Discussion On The TEXT Datatype And ASP
Sep 22, 1998OK, I`ve been researching the use of the TEXT datatype all day and would
like opinions on what I`ve found.
First, a little background. I have been tasked with writing an ASP
application to handle the display of FAQs for a company`s products. I would
like to store all info in a table much like
faqID int
question TEXT
answer TEXT
Simple enough, right? I then tried to create a stored procedure to add a
new FAQ and all hell broke loose. ASP would not pass anything larger than
255 chars to the stored procedure.
I read in the "ADO and SQL Server Developer`s Guide" from Microsoft about
using varchar datatypes of 255 chars (instead of TEXT) and chunking large
text up to fit in these smaller datatypes. This seems like a lot of work.
I also read in "Inside SQL Server 6.5" that "The text datatype is sometimes
awkward to work with. Many functions don`t operate against text, stored
procedures are limited in what they can do with text, and some tools don`t
deal with it well." (page 632). This statement concerns me greatly. How
are stored procedures limited in dealing with TEXT? Do the standard SQL
UPDATE and INSERT commands work or must READTEXT and UPDATETEXT be used
instead?
I guess my question is, what is the best way to accomplish this? I have a
feeling that others have had to do this before. Is SQL Server not meant to
handle large textual objects? Is chunking the best way to go? Will version
7.0 handle this scenario better?
Any help greatly appreciated!
--Matt Richmond
MenoX Technologies, Inc.
Where Is SQL2000 Discussion List?
Mar 15, 2002List-
I have completely lost entry into SQL2000 Discussion List with the following URL:
http://ls.swynk.com/scripts/lyris.pl
This URL taking me to internet.com testlist. I have sent a request to the webmaster but there is no responce.
Anybody know how to get into this forum? I am not able to look at my group messages since yesterday.
Thanks for Redirecting me by any other URL.
Jaganmohan Rao
Table Linking Discussion
Jan 15, 2004I would like to hear your thoughts on a philosophy I adhere to.
As a rule of thumb I've always preached that Unique Indexes are for linking tables and Primary Keys are used to ensure that records aren't duplicated. I’ve embraced this philosophy for a couple reasons, the main one being that I don’t have to create numerous foreign key fields in the foreign key table.
However I’ve done most of my programming in Access and am now in need of something more robust (SQL Server v7) and I’m wondering if I need to reconsider.
I do also have a how to question; that being is it possible to create a table join on a unique index in SQL Server v7 and if so how? I would like to have an Auto Number / Auto Incremented / Unique Identifier field in the Primary Key table that links to a numeric field in the Foreign Key table.
Thanks in advance
Dog
Is Discussion Board Reply Working
Jun 18, 1999I cannot reply to any messages of the board? Is anyone else having this problem?
I see from the board that there haven't been any replies for a few days...
Jarlath O'Grady
mailto:jogrady@swynk.com
http://www.swynk.com/friends/ogrady
Database Discussion To Change Perpective
Aug 2, 2006Hello
I have been doing relational database forever(or a long time) and have been intruduces to a team that uses a highly normalized database(propietary) to manage workflow.
We are capturing data in an AUDIT Trail EAV format.(500 million rows)
It is my task to build this into a data warehouse for reporting and I need to have with my team a relational database discussion. The relational database knowledge on this team is DB2 based, IDMS, and other past evolutions.
The common processes used are recieve a flat file and process this file sequentially using C# or VB doing lookups of other databse tables and writing out another flat file to be converted in XML for load to the propritary system.
My goal is to attempt to introduce new design concepts to my team and these are some talking points that I have come up with for a lunch and learn session.
can anyone else add to this list I don't want to get into a deep discussion about 3rd NF, Star Schemas vs Snowflake, etc.. I want to keep is informational and light to eliceit discussion and relat it back to older technologies.
some of the topics we can discuss are:
Why the data warehouse
Real-time tables what needs to stay in prod
What is going to happen to reporting database
Interaction between database on the same cluster/server
Interaction between databases on different servers (linked servers not allowed)
Set processing as opposed to cursor processing.
Table types
EAV
Type1
Type2
Fact
Dimensions
Code