One Large Database Or Many Small....
Oct 23, 2006
Hi Experts
We are debating what is best:
1. To combine all the company's data in one large database, and use schemas and file groups to create logical and physical distribution on drives and namespaces
or
2. Distribute the data into smaller databases with related data - eg. products and product description in one db, Customers in another and orders and orderlines in a third db.
Just what are the pros and cons?
regards
Jens Chr
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Dec 22, 2014
when to use table variable and temp table. i told the interviewer that when rows is less like hundreds or thousand then use table variable else use temp table.After that he asked that what do u mean by less data or thousand rows may be there are multiple columns involved with that less rows and make a huge data set.
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Oct 8, 2007
Hello,
the application will add items into a "bag". That is, the items in one table will refer a record in another table. This will be done in timely manner -- with second or minute delays between adding a new item. There will be up to thouthand of items per bag. The option is to wait until a full bag accumulates and set up all the references at once by using
UPDATE items SET container_ref = bag WHERE id IN [...]
The disadvantage of such all-at-once I see is inability to encapsulate the functionality into a SP -- the problem is to pass a set of IDs. The advantage should be efficiency in terms of total SQL Server load. How mush would it be?
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Aug 2, 2007
HiThis is a question of "what does it cost me".Lets say I have an integer value which would fit into a smallint fieldbut the field is actually defined as int or even larger as bigint.What would that "cost" me ? How would definitions larger than I need forthe values in the field affect me ?Its obvious that the volume of the database would grow but with the sizeof resources etc that we have nowadays disc space isn't a problem likeit used to be and i/o is much faster and many people would tell me "whocares" , or IS it a problem ?How does it affect performance of data retrieves ? Searches ? Updatesand inserts ? How would it affect all db access if tables are pointingat each other with foreign keys ?Thanks !David Greenberg
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Jun 14, 2001
HI There,
Generally speaking, is it better to use a large or small stripe size for a Raid 5 array (4 drives) ? I would appreciate any specifics also.
Thanks in advance.
Charlie
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Jul 18, 2006
Hi,
Please could you tell me how big sql tables are when people refer to them as small, medium and large? Preferably in terms of disk space or rows (each row in my table will contain a standard length job advert and 20 additional columns with an average of 8 characters)
Thanks for your help! :-)
Stu
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Jul 16, 2007
Hi ,
Is there any method by which I can divide the large flat file into certain number of small files keeping the header in each of the sub files?
Regards,
Prash
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Oct 1, 2015
I have a small number of rows in a dataset, Table 1. There is a CLOB on a large dataset, Table 2. They join on a PK. I would like to retrieve this CLOB and add it to the data flow for Table1. In short I want to emulate the following:
Table 1: Small table without CLOB, 10 rows.
Table 2: Large table with CLOB, 10,000,000 rows
select CLOB
from table2
where pk = (select pk from table1)
I want this to return the CLOBs for the small number of rows in Table 1. The PK is indexed obviously so it should be a fast look up.
Table 1 and Table 2 live on different Oracle databases. How do I perform this operation efficiently in SSIS? It seems the Lookup and Merge Join wont do this.
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Sep 6, 2007
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Dec 25, 2006
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Oct 16, 2006
Hello everyone,
I have a winform application with C# front end and sql express 05 backend.
In this database i have a table that holds manufacturer provided pricing and the manufacturers we work with update pricing constantly.
We have one table called "manufacturerpricing" which we are constantly inserting and deleting pricing records to/from to keep manufacturer pricing up to date. We may insert and delete as many as 2,000,000 records per month into this table.
This works perfectly fine and we have no problems here at all.
But with that being said, I am worried about the size of the database growing out of control due to temporary space etc. The database just keeps getting bigger and bigger.
How do I run some maintenance to keep the database size under control.
I would like to run this automatically from the C# front end so if ther is a stored proc I can call or an C# assembly I can reference that would be ideal.
Any help is greatly appreciated.
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Mar 21, 2006
Hello
I am trying to maintain a small database on my iPAQ, can somebody tell me that would database be created in SQL Server Mobile on my iPaq and can my VB.net based Windows CE application can access data from the database on my iPAQ
tHNAKS
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May 12, 2004
Hi,
I'm a newbie with SQL so excuse my igorance. I'm running an application that uses MSDE2000 as its source db and would like to create a small [10 field] db that would also use MSDE. I want to use a separate db though and not share the first one. What I'm looking for is suggestions on a development tool to create the database with as I'm not familiar with SQL tools. I have a lot of Access experience though so the concepts are not new.
Database requirements are pretty basic.
10 fields [8 text, 2 numeric]
A button field to Add New Record
A search field
Column sorting.
That's it. I could do this in a pinch with Access so knowing what tool to use should make it easy. Any chance that I could do it with Access and then port it to a SQL db?
Thanks,
Bob
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Jul 20, 2005
Hi ng,I need some input/suggestions for a very small layout.The situation: Some groupings of thumbnails. For every picture (thumbnail)there is a "big" picture. Thats it basically :) On the front the scenario isthis:A user clicks "Autumn". The user is presented with the "Autumn" thumbnails.If he click a thumbnail, the corresponding big image is displayed. Well, uget the picture :)Hoe is this most efficiently implemented in table-layout? I mean....do Icreate a table called "images" and have a column called "is_thumb"? Or do Ibetter make 2 tables...Or better make a "relation/type" table too?--?Thanks,/Summa
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Aug 15, 2015
I was putting a database together (its a C# application MSSQL) the application will handle a few hundred customers records and save maybe a couple of thousand word docs/images/other doc files wondered if the way to go was blob or filestream, I see the medium and larger databases seem to go for filestream but just wondered as not much mentioned about smaller dbs.I do not think security/disk space/super fast access will be a big issue.
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Apr 23, 2007
guys,I have a project need to move more than 100,000 records from onedatabase table to another database table every week. Currently, usersinput date range from web UI, my store procedure will take those dateranges to INSERT records to a table in another database, then deletethe records, but it will take really long time to finish this action(up to 1 or 2 hours).My question is if there is some other way I should do to speed up theaction, I am thinking about use bcp to copy those records to datafileand then use bcp to insert it into SQL Server table. Is this the rightway to do it or should I consider other solution (then, what is thesolution.)Thanks a lot!
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Jul 23, 2007
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Apr 17, 2003
Hello,
I would like to know whether MS SQL Server 2000 Can handle Large Database size 28 gig, currently we are using Sybase but we want migrate to SQL Server 2000. Are there any performance issues?
Any help is appreciated.
Thanks
Sejal
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Aug 17, 2006
We have many installations of our shopping cart database. One specific database is huge, now about 25 GIG, compared to the others that range from 20 to 75 MEG. The server this one resides on has three other instances of the same database that are normal size.
In a particular table in the large database there are 9700 rows taking 380MB, the same table in a normal db has 162000 rows and takes 6.MB. The tables are identical and the indexes are the same.
Any ideas out there?
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Sep 12, 2006
I upgraded a database from SQL2000 to SQL2005 and it went pretty smooth. After the transition was made, I backed up the DB. The size of the database was as expected, about 5 GB. About 5 hours later, a maintenance plan executed a few optimization jobs in the following order: Reorganize Index, Rebuild Index, Shrink Database, Update Statistics. Soon after that, another job backed up the database and it was then 32 GB. During the time after the first backup, no one was really using the database.
I've been trying to track this down for several days. Does anyone have any ideas for me?
Thanks,
Bobby Crawford
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Dec 4, 2006
Hello!
I have a database with one table inside. The table has six columns with the following datatypes:
col1 -->smallint (2byte)
col2 -->int (4byte)
col3 -->smallint (2byte)
col4 -->smallint (2byte)
col5 -->smallint (2byte)
col6 -->int (4byte)
I have insert 1.359.320 rows with data and the size of the sdf file is 40.116.224 byte.
According to my calculation:
1.359.320 * 2byte + 1.359.320 * 4byte + 1.359.320 * 2byte + 1.359.320 * 2byte +1.359.320 * 2byte + 1.359.320 * 4byte = 21.749.120 byte
I hope somebody can explain me, why the database is so large.
Thank you
Sascha
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Oct 8, 2004
Importing data from an Access database, I cannot overcome the limit of 1,000 records.
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Where can I set a max size of ~1,500 in my sql target base?
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Jun 15, 2000
Hi Everybody:
We now host 200 G data in SQL Server 7.0 in MSCS. The data will be 1 terabyte at end of the year. The possible solution to host large data with good performance is to migrate data to Oracle or UDB in Unix platform. But we would like to try any possibility in Microsoft world before we decide to migrate data to the other databases.
I need your experience and recommendation about hosting large database in SQL Server with good web performance. Somebody mentions Microsoft tera server. Who has experience using tera server which is still in the beta release? I would like to hear some successful story to handle the large data and understand precisely hardware, software, performance moitoring requirement.
Thank you very much.
Rich
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Dec 14, 2006
Hi to All
I have large database with tables and views on the server around 80 to 100 mb amount of data.when i retrieve the data from the server it is taking long time Ex: "select * from vwcases" its taking 10 to 12 minuts time.this is my database problem.If you know the solution please reply back to me as soon as possible.
thanking You.
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Mar 2, 2005
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thanks!
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Jan 7, 2005
Hi Guys,
I am looking for a large datawarehouse database implemented in SQL Server to use it to run some examples in my thesis. if someone knows where I can find a large datawarehouse database (e.g Sales database) please tell me.
I appreciate any help.
Thanks
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May 17, 2004
Does anyone know of a good way to copy a large database or backup of a database (~10 GB) across long distances (transatlantic) in a minimal amount of time?
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Jan 26, 2007
Hello all,
We have total 7 databases in the warehouse and these db are big. All the data files are approximately 300G now and they all growing more. Some are small db some are large db. (ranging from 20G to 50G of data files). Can someone please recommend me the best backup plan for this scenario. The regular backup through SQL 2005 takes too long.
Thanks for your help.
tocroi
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Feb 24, 2006
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Aug 11, 2007
I am developing an office automation software for a government department. To start with, I have decided to first automate the salary section of the department. Because of some issues like, TCO, easy support and maintenance, scalability etc., I have decided to use SQL Server 2005 database with VB 2005 front-end.
I have planned the layout for this first part and found that in only employee salary table, 40,000 records per month will be stored. That comes out to be around 480,000 records annually. This is for one table alone, excluding data in other tables.
Since each section of the department will be integrated into this later, this application will become the backbone the department. The employee service, leave, salary, allowance, deduction and other records shall be maintained.
For this type of mission-critical application, I want to get some queries cleared:
(1) What backup strategy should be followed? I want to have schedule and maual backups both. Is there any way to have a mirror image on another server?
(2) What considerations to keep in mind in the inital stage of database design?
(3) How to keep the design scalable and configurable to meet future needs?
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Jun 21, 2007
Hello, All:
I have many, many Access databases that are roughly 1.5GB-3GBs each and they have millions of records. Each MS Access Database file corresponds to one Database in SQL server. I'm trying to simply transform the data as it is in Access to MS SQL 2005.
I'm using the 64 bit version of Windows Server 2003 and the 64 bit version of SQL 2005. The server is running four dual core AMD Operton processors and has 8GB of RAM with a 1TB RAID 5 configuration. I think the hardware should be sufficient but the SQL Server Import and Export Wizard can't seem to handle the large number of tables/records. If I do one table at a time, it works well; however, it produces the following error message whenever I try to import the entire database:
Pre-execute (Error)
Messages
Error 0xc0202009: {5A5BF7AD-E86B-4316-AD43-1912358C56F4}: An OLE DB error has occurred. Error code: 0x80004005.
An OLE DB record is available. Source: "Microsoft JET Database Engine" Hresult: 0x80004005 Description: "Unspecified error".
(SQL Server Import and Export Wizard)
Error 0xc020801c: Data Flow Task: The AcquireConnection method call to the connection manager "SourceConnectionOLEDB" failed with error code 0xC0202009.
(SQL Server Import and Export Wizard)
Error 0xc004701a: Data Flow Task: component "Source 64 - District Corporal Punishment Class" (5743) failed the pre-execute phase and returned error code 0xC020801C.
(SQL Server Import and Export Wizard)
Any ideas would be much appreciated!
Thank you,
Cody
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