SQL Server 2008 :: Data Type And Size Of Each Row
Feb 27, 2015
In my database there is a big table and format is something like this:
CREATE TABLE [dbo].[MyTable](
[aaa] [uniqueidentifier] NULL,
[bbb] [uniqueidentifier] NULL,
[ccc] [nvarchar](max) NULL,
[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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Oct 7, 2015
I've never worked with the XML data type in SQL Server, although I know its been there for a few iterations of SQL SErver. Now I've got a situation in which it might store some configuration data as XML, since that's the way it comes. (We had thought about storing the data in a VARCHAR(MAX) field.)
The first question is does the XML data type have a size limitation? For example do you do something like:
ConfigFile XML(1000) NULL
Or is it just something like this:
ConfigFile XML NULL
The second question is persisting the data to a file. As the name I choose for the variable suggests, we want to save the data from a configuration file into a SQL Server database. How do we go about doing that? We'll be developing a C# application, it will read and write the data both from the SQL table and the user's local HD.
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Sep 12, 2011
We have installed SQL Server 2008 R2 SP1 instance and it's having Share Point 2010 databases.
We have 2 dedicated drives for Tempdb on SAN with 50 GB space. Both tempdb data & log files are created with default size. I would like to presize them.
What are the best values to start with?
U ->Tempdbdata having tempdb.mdf file
V->Tempdblog having templog.ldf file
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Aug 10, 2015
I'm using the SQL below to work out recruitment figures. The query works well, but I now need to build this query into a DotNet application as a webpage. I therefore need to declare and manipulate the values such as 'Total', 'Jan' to 'Dec' and 'YearRecruited' in order to write these values into my chosen data control. I therefore need to know the datatypes of these calculated values.
Total I think is straightforward as DNAScreeningID is an int datatype. But what about the others?
SELECT YEAR(SamplingDate) AS YearRecruited,
COUNT(CASE WHEN month(SamplingDate) = 1 THEN DNAScreeningID END) AS 'Jan',
COUNT(CASE WHEN month(SamplingDate) = 2 THEN DNAScreeningID END) AS 'Feb',
COUNT(CASE WHEN month(SamplingDate) = 3 THEN DNAScreeningID END) AS 'Mar',
COUNT(CASE WHEN month(SamplingDate) = 4 THEN DNAScreeningID END) AS 'Apr',
[Code] ....
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Oct 15, 2015
Should data type money allow nulls? Are there valid arguments both pro and con?
Yes, there is the age-old question regarding how one might interpret a NULL found in any column - does it mean the amount is not known or that the amount is zero (in the case of a numeric type)? You get the drift...
Other than that, though - are there any practical considerations an old data hound ought to be aware of?
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Oct 20, 2011
How do i check the size of the datacache allocated from the buffer pool by sql server?
DMV or anything to show me the pool allocation sizes for the various pools in sql server i think i may be able to work from there.
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Oct 12, 2015
I am having an issue fetching Chinese characters in a XML data type. It return questions mark (?).
Below is the sample script.
DECLARE @XMLVAR XML
SET @XMLVAR = '<?xml version="1.0"?>
<POLICY_SEARCH xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<NAME>QA*保险1</NAME><NUMBER /></POLICY_SEARCH>'
SELECTI.xmlParam.query('./NAME').value('.','NVARCHAR(25)') NAME
,I.xmlParam.query('./NUMBER').value('.','NVARCHAR(25)') NUMBER
FROM@XMLVAR.nodes('POLICY_SEARCH') AS I(xmlParam)
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Jun 17, 2015
As per my requirment using below script to convert from varchar to numeric.
declare @stg varchar(50)
set @stg='12,000,00'
select CONVERT(NUMERIC(17,2),@stg)
Getting error : Error converting data type varchar to numeric
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May 14, 2015
I have problem to execute query with interval date.
If try this query I don't have problem and the output is correct:
SELECT * FROM dotable
WHERE
dotableDate BETWEEN CONVERT (datetime, '01/01/2015', 121)
AND CONVERT (datetime, '09/01/2015', 121);Instead if try this I have error:
SELECT * FROM dotable
WHERE
dotableDate BETWEEN CONVERT (datetime, '25/01/2015', 121)
AND CONVERT (datetime, '28/01/2015', 121);
[Err] 22007 - [SQL Server]The conversion of a varchar data type to a datetime data type resulted in an out-of-range value.
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Jun 5, 2015
Not seeing the Review Data Type Mapping Screen in SQL Server Import and Export Wizard?
Is there only a certain version where that screen shows up?
I am trying to import data from an MS Access application to SQL Server and all of the connections are good, but some of the data isn't and if I let it migrate using this tool it crashes on the bad data and there is no data that migrates. The Review Data Type Mapping screen will allow me to bypass the records in error and load the rest. however, I can;t do that if I cannot see the screen.
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Oct 13, 2012
When I run the following sql query:
"update table set price = price * 1.1 "..
I get the following error : "Msg 8115, Level 16, State 8, Line 1.. Arithmetic overflow error converting nvarchar to data type numeric. The statement has been terminated."
The table is set to nvarchar, and i am just trying to make the prices go up 10%.
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Oct 5, 2005
I need to store images in MS SQL. I have the upload procedures and stuff but I'm missing the point about the image data type size.
It is supposed to be able to store up to 2Gb!!! but when I declare the data field image I can't specify the max size for the field and by default is 16 !!
16 bytes!! what can I do with that?
How can I insert a file?
Please help
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Jul 20, 2005
I'm using ODBC to interface a Microsoft SQL Server 2000. One of theoperations involves placing files within BLOBs. I'm using the imagedata type for this purpose. Most of the time this works okey, but whentrying to add a 21,3 MB file I get an error. The error code is 22001,which means "String right-truncation". But why? Does this mean thatthe field cannot accepts BLOBs with this size?
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Jul 20, 2007
I've got a few VLDB's that we want to make smaller. Since the tables are running on legacy stuff, all of it's basically made with int's and char's and it's horriably inefficant.
The problem that I came across is when I made a new table with the best data types and copied the data from the old table, the table size was the exact size (excluding the index size). It was estimated that a total of ~20 GB would be saved with this change. As it turned out, 0 bytes of data were saved with the data types chagnes.
Why are the two tables the same, even though one has much more efficant data types?
If you want more information about the table I'm using:
391 columns.
50,147,035 rows.
65,295.625 MB in size.
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May 8, 2008
Hi,
How can I get the Size of the image(binary) data in the datatable?
How can I get the size of the database through Query ?
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Nov 9, 2015
I have a sharepoint content database in sql 2008 R2 (WSS_Content) that is at 230Gb size, but has 40% of it is empty space. This is because we have removed a large amount of old content from sharepoint. The log file is fine. I have 60GB left in my drive that host the database files. I would like to shrink the datafile to get disk space back. I found that under the files property, the WSS_Content data file's initial size is 228702 MB (220 Gb or so).
When i try to do a shrink file (data file) from management studio, i see the 60 GB of drive space keep dropping. So i have to kill the process. what i should do to reduce this data file.
why it keep using up all the free space in the drive when i try to shrink the data file?
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Mar 29, 2006
I couldn't insert more than 4000 charachters in "ntext" type in SQL server. Is there anyway, i can increase the size or any suggestions?
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Feb 4, 2015
I have a table like below,
CREATE TABLE Student
(
Id BIGINT not null
,Name NCHAR(20) not Null
,Branch NVARCHAR (64) null
)
The table contains : 100000 rows .
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 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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Apr 30, 2015
I have issue with my DATA file ( MDF) .. The usage is 99.87% for database DB1 . File size is 3 GB . How do I reduce it ?
I have tried to shrink it by changing the recovery from FULL to SIMPLE and set it back to FULL .
I notice the index Defragmentation is high ..
Can I change the Initial Size into 1 GB for example ?
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Jul 27, 2015
My prod server (only default instance) is configured TempDB 1024 MB data and Log 200MB. when I run 'sqlperf logspace' it shows most of time around 45% 'log space used'. There nothing going on the instance when I ran 'whoisactive' and select * from sys.sysprocesses where dbid = 2!!!
So my questions are is this normal to see log space around 45%, how to find what what CAUSED the tempdb log space to grow 45%? Is there something to do about it?
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Jun 21, 2010
Can I view the log cache size in SQL Server memory any DMV's which states that.
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May 25, 2015
For finding size values of temp database:
select * from sys.master_files -
size column value here is 1024 for .mdf,size here for .ldf is 64
select * from tempdb.sys.database_files -
size column value here is 3576 for .mdf,size here for .ldf is 224
Why is there a difference and not the same. size columns in the above 2 tables for temp db's do they represent different values ?
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Feb 1, 2011
I've got two databases on the same server and replicate some tables from one database to another.The replication is configured so not to drop the table if it exists, but to delete the data based on the filter if one exists. There are two tables on the subscriber that have some extra columns.
I get "field size too large" error when trying to replicate them. Is there a workaround without having to make the publisher and the subscriber tables identical by schema?
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Mar 8, 2015
My backups are failing sometimes.My db size is around 400 GB and we are taking backup to the remote server. Free size available on the disk is showing 600 GB but my database full backup run more than 10 hrs and failed. The failure reason is there is not enough space on the disk.
What could be the possible failure reasons? It has more than the the database size on the backup server but why it is showed that msg on the job failures. I noticed same thing occurred couple of times in the past.
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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Oct 14, 2015
Any good starting point to understand for a specific db, how many max VLFs are good to have so that it does not cause long startup or backup times?
Also, I need some calculation so that I can identify a best growth parameter I will setup for each database ?
I'm seeing the below msg in errorlog and curious to know the changes (right sizing/growth) to be done? As of now 100 MB of log file growth value is set (refer: [URL] ....)
Database BizTalkMsgBoxDb has more than 1000 virtual log files which is excessive. Too many virtual log files can cause long startup and backup times. Consider shrinking the log and using a different growth increment to reduce the number of virtual log files.
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Nov 4, 2015
When sending an email in HTML format, shouldn't this allow for 2gb of data? Mine is getting truncated after 4000 characters.
@body NVARCHAR(MAX) = NULL,
EXEC msdb.dbo.sp_send_dbmail
@recipients='someone@some.com',
@reply_to='someone'
@from_address='someone@here.com>',
@profile_name = 'profilename',
@body_format = 'HTML',
@body = 'lots of data'
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Feb 1, 2015
i need result from '(1000/3)+(15/100)'. try exec() by failed.
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Feb 23, 2015
Below is a SQL statement that shows what columns belong to a certain view. My next question is how can I get a third column that shows the column type ?
VARCHAR(100), or UNIQUEIDENTIFIER or INTEGER or TEXT or NVARCHAR(256) or ........????
select top 100 a.name, b.name, from sys.views a inner join sys.columns b
on a.object_id = b.object_id where a.name like '%Case_Times%'
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Apr 29, 2015
How can we monitor the all tables in all databases and send notifications to the team.Is there a way to check to find the no of rows and size of a table last month and find out growth % now
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Feb 5, 2015
I'm trying to store the output of my stored procedure into a temp table, which takes Table Type as Input.
CREATE TYPE [dbo].[Employee] AS TABLE(
[Field] [varchar](50) NULL,
[Criteria] [varchar](50) NULL,
[Value] [varchar](50) NULL
)
declare @Employee dbo.Employee
insert into @Employee values(N'Salary',N'is greater than',N'3520')
DECLARE @sql NVARCHAR(MAX)
SET @sql = 'SELECT * FROM OPENROWSET(''SQLNCLI'',''Server=localhost;Trusted_Connection=yes;'',''EXEC dbo.uspGetEmployee ' + @Employee + ')'
I need to create a stored procedure which uses output of the above stored procedure. Hence, I don't want to put declare and insert into OPENROWSET as I get those values as parameter to the new procedure.
Any other solution instead of using OpenRowSet.
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Jul 3, 2015
I have 3 tables as per following:
orddet
OrderProductQtyOrd
1 Item1 20
2 Item1 10
3 Item2 10
4 Item1 5
4 Item2 5
ordhead
OrderDate
110/06/2015
205/07/2015
307/06/2015
415/08/2015
product
ProductdescMinQty
Item1This is 110
Item2This is 220
I want to pull only the 1 line for minqty for an item as follows
OrderProductQtyOrddate minqty
1 Item1 20 10/06/2015 10
2 Item1 10 05/07/2015
3 Item2 10 07/06/2015 20
4 Item1 5 15/08/2015
4 Item2 5 15/08/2015
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Jul 24, 2015
Is there a good way to add columns to a table type?
I built several procs which make use of table-valued-parameters, and they work pretty nicely, until I need them to accept additional columns. Then I have to drop all the procs that use them, alter the types, and rebuild all the procedures, which is a huge pain in the rear.
Is there any good way (built in, or custom) to alter the def of a table type that's used as a parameter to multiple stored procedures?
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