SQL Server 2008 :: Table Size After Reindex
Feb 22, 2015
I'm trying to understand what is happening to one large table.
In a DB SQL 2008R2, I'm trying to track a rapidly increasing DB size. It's due to one table recently added.
Despite the table's no rows increasing its size reduces after a scheduled re-index.
I've recorded the space used by this table by recording EXEC sp_spaceused 'tableName'
---
NoRows reserved data index_size unused
128864512300384 KB 2290928 KB9432 KB24 KB AFTER reindex
128864515406232 KB 5366184 KB39280 KB768 KBBEFORE reindex
N.B. The only thing I'm aware of happening in the time period is a reindex as part of scheduled task. I could be missing something else happening.
The table has only one Index the PK which is clustered, No Fill factor is specified. The Server Default fill factor =0.
I read fillfactor=0=100 Will always try and fill the pages so space used will be minimised?
After running the reindex the index fragmentation is v.low. I've not recorded the fragmentation before reindex.
I can see the Data is not added in Clustered index order.
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Jun 3, 2015
I inherited a system which has an index on a set of columns which allow more than 900 bytes of data in it. We know one of the fields can be shortened to shrink the potential key size below 900 bytes.
The problem is the table is about 120m rows, and the index currently on that column is seeked (sought?) on about 2.5m times a day.
At its simplest, I want to drop the existing index, alter the column to shrink the varchar size, and then rebuild the index on the newly shortened column.
On a smaller, less used table, I might just do this in outside of business hours and call it a day, but I'm concerned that this will take a long time and block a lot of operations.
1) IIRC, shrinking a column, unlike widening it, is much more expensive, even if there are no values which would actually end up trunacted. Is this right?
2) I did a few tests on some other smaller (2+ m) row tables and was still able to select data out of the table. I don't think this covered all the read scenarios, but are there known scenarios which would simply not work during an index build?
3) I haven't yet tried DML operations to the table while it's doing either the column update or an index build. what scenarios would or would not be blocked?
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Feb 4, 2015
I have a table like below,
CREATE TABLE Student
(
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1)Number of rows in a data page
2)Total number of pages required for the table
3)Total Table size in KB or MB
4)Total file size in Kb or MB
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Feb 27, 2015
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[bbb] [uniqueidentifier] NULL,
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[ddd] [nvarchar](100) NULL,.......etc.........
There are some more columns with more 'nvarchar' (max) and other INT data types. Anyway, I know a page is 8K size. How do I find out how much space does A ROW takes with above datatypes? If users add 5000 Rows per day, how do I figure out how much size the table will increase?
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I notice the index Defragmentation is high ..
Can I change the Initial Size into 1 GB for example ?
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select * from sys.master_files -
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select * from tempdb.sys.database_files -
size column value here is 3576 for .mdf,size here for .ldf is 224
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ConfigFile XML(1000) NULL
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ConfigFile XML NULL
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Feb 1, 2011
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Sep 12, 2011
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What are the best values to start with?
U ->Tempdbdata having tempdb.mdf file
V->Tempdblog having templog.ldf file
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Mar 8, 2015
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Is there any way to find how much the backup file will be generate before we run the backup job?
i.e. If we run the full backup of test1 database now, it will generate ....bak file for that test1 db
currently we are using maintenance plan and with compression (2008R2) and the database has TDE enabled
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[Code] ....
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Apr 24, 2015
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-------------------------------------------- ----------
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Mar 13, 2015
Here is the sample data for table.
create table #sample (emp varchar(max),data1 varchar(max),data2 varchar(max), Rdate date)
insert into #sample (emp,data1,data2,rdate)
values('john','','',getdate())
insert into #sample (emp,data1,data2,rdate)
values('tony','','',getdate())
[Code] ...
I need to update the data1, data2 from yesterday or before but they should be non blank and non null and update to todays data.
It means, I can't update to 2015-03-12 values to 2015-03-13, as they are blanks or nulls.
So I need to go 2015-03-11 and check the values, if they are not blank , i need to update with todays values.
Before the update :
empdata1data2Rdate
john3/13/2015
tony3/13/2015
john3/12/2015
tony3/12/2015
johncd3/11/2015
tonyab3/11/2015
After the update:
empdata1data2Rdate
johncd3/13/2015
tonyab3/13/2015
john3/12/2015
tony3/12/2015
johncd3/11/2015
tonyab3/11/2015
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May 26, 2015
which ALTER TABLE/ALTER COLUMN- Statement has a Recreate Table as result ?
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Sep 16, 2015
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May 18, 2015
I have two table 'Cal_date' and 'RPT_Invoice_Shipped'.Table cal_data has column month_no, start_date and end_date. And table RPT_Invoice_Shipped has columns Day_No, Date, Div_code, Total_Invoiced, Shipped_Value, Line_Shipped, Unit_Shipped, Transaction_Date.
I am using below insert statment to insert data in RPT_Invoice_Shipped table.
insert into [Global_Report_Staging].[dbo].[RPT_Invoice_Shipped]
(Day_No, Date, Div_code, Total_Invoiced, Transaction_Date)
select , CONVERT(DATE,Getdate()) as Date, LTRIM(RTRIM(div_Code)),
sum(tot_Net_Amt) as Total_Invoiced, (dateadd(day, -1, convert(date, getdate())))
from [Global_Report_Staging].[dbo].[STG_Shipped_Invoiced]
WHERE CONVERT(DATE,Created_date )=CONVERT(DATE,Getdate())
group by div_code
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I am using SQL Server 2008 R2.
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Aug 14, 2004
hi,
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Jun 8, 2000
Hi!,
I have a process(Peoplesoft) in SQL Server which takes long time to finish. I am looking for is there any way to find out fragmentation of the table to defagment it or is there any way to allocate the size for particular table. Couple of users are running the process at same time but as SQL Server has table/page locks it locks and releases after the job is done. Can i make it row level lock by executing sp_tableoption procedure. I would appreciate for all your suggeations.
Thanks,
Mohana
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Dec 14, 2007
Same issue in VS 2005. Using a setup project (or ClickOnce) there seems to be a limit to how large a content file can be. I'm cross-posting in setup and ClickOnce, but thought that other SQL CE developers may have had this issue.
---------------------------------------------------------
I cannot find a reference to this in the online help, and find no answer here. I have some SQL CE databases that are marked as 'content' in a project. One is less than a mb, the other is over 600mb. The larger one will always break the setup build if I leave it marked as content. Also will break a 'clickOnce publish' build.
How does one use the MS Visual Studio tools for setup when a file size is too big?
What is the max file size limitation?
I need to deploy with ClickOnce, but find it difficult to determine the directory that my large file will need to be copied to afterwards since a ClickOnce install uses such a confusing path to install to. So, if the workaround is to fire a script post install, it would be a problem to discover the path for that file to be copied to.-----------------------------------------------------------------
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Jun 18, 2015
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ALTER INDEX [VBDATA~0] ON qa2.VBDATA REBUILD
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GO
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Nov 9, 2015
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