Multiple Database Files: Good Or Neutral?
Sep 12, 2007
I have inherited some responsibilities for which I'm not really qualified, so I'll push on through and maybe not totally fall down.
Assume 10 50GB databases, each in a single MDF file. All these MDF files reside on the C drive (the only drive on the system), running SQL 2005 in a 32-bit Windows 2003 or later, 8GB RAM.
The C drive is 6 physical disks in RAID 5, say about 1.0 TB or so. We have 4 dual-core processors on the box.
We have limited simultaneous users, initally about 8 users doing very heavy write on all tables in any one database. Later, we have about 15 users connecting via Web interface, and doing very heavy read and light writing. Each of the 10 or so database has this lifecycle: Heavy write for about 2 weeks (load data) then heavy read for about 1 month (research and search data), then nothing ever again (db is taken offline).
Of course, this is not enough information to go on, but let's just go on it anyway.
My TempDB, Log (simple recovery), Index etc is all on the same RAID 5 drive (C).
I have two basic questions I'd love to hear feedback on:
1. Is there any real advantage to creating 8 Data files for my database (one per processor core)?
2. Given that the hardware people here REALLY don't want to change anything, what should I fight for first:
a. Separate drive for LOG files?
b. Separate drive for TempDB?
c. Something else
Thanks in advance.
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Jul 23, 2005
I am thinking about replacing the INSERT data scriptfiles that I have with XML files. This way I can open the XMLfile using an XML Editor and see the values in a GRID andmake changes easier.Do you see any problem with this approach?I managed to put together some code that is exportinga SQL table with its data to an XML file and also a codethat reads the XML file's data and inserts it into a table.Now I am researching on XSD, td:datatype, DTD...(I am new to XML) in order to figure out how I canuse a single xml file that will hold both the sql serverfields, the datatypes and their values.If you have links to some sample code that has anythingto do with the datatype export and import I am workingon, can you please share them with me?Most importantly what do you think about the idea of usingXML files vs sql scripts?Thank you
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Sep 13, 2000
Usually, our in house ERP software has 1 database and 1 database file. After an upgrade from MS SQL 6.5 to MS SQL 7.0 I have a database who's properties show that it is made up of multiple datafiles. What is the easiest and safest method to return this database to only have 1 datafile?
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Jul 20, 2005
Hi.I am wondering if it is a good idea to replicate sql server db filesusing frs.I don't really know how the frs works, sodoes frs replicates the whole database from time to time or just theportion that is changed?Also if the db is expected to change very often, and wouldn't it makethe whole system down?I wonder if it's a good idea just to make a backup of the database andcopy it.What's the usual practice?
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Mar 12, 2008
Hi.
What I want to know is what the issues/scenarios are of only using copies of mdf/ldf files as backups.
TIA.
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May 16, 2007
Hi there
It is obvious that putting multiple database files on different physical disk is better for performance, but what about splitting the data on different files on the same disk?
I have got a database of about 20GB and only a single data file. will I benefit from splitting this file to multiple files on the same disk?
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Aug 1, 2006
i have a table with rows of file names and paths. what i'm trying to do is process each file and store it in my sql database. i want to store the files as binary files (they are word and excel and pdf files) anyone know a way to do this? it would especially be useful if i could do this with a console application so i can schedule it
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Sep 27, 2006
First of all i do not know whether this is the right form to ask the question Let me describe the scenario iam using Iam generating xml files at a particular place and sending them to a server xml1|--------------------->dataset1------------------------------>adapter1.update(dataset1)xml2|----------------------->dataset2----------------------------->adapter2.update(dataset2)xml3|----------------------->dataset3------------------------------>adapter3.update(dataset3) all the three updates should happen in only one transaction if any one of the update fails then the transaction should rollbackcan anyone tell me a way to do iti am desperately in search of any ways to do it can anybody help please
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Nov 19, 2006
Hi,I am new to SQL express and try to solve the 4GB size limitation.Is there a possibility to create a new database file every time I getto the limit?How can I do that with C#? how can I create new database file everytime it gets full?Can I be connected to two database files at the same time (the full dband the new db)?thanks in advance,oren
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Aug 29, 2007
I have several databases that have grown to 300 GB and would like to distribute the data into multiple files across multiple drives. Can I create a new database that is spread across the new drives and use a full backup to restore or am I stuck with unloading the data table by table?
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Feb 9, 2015
I need to import multiple csv files and load into table and everytime new database has to be created .
I was able to create new databases using stored proc
How do i do a bulk insert for all the files at once to insert into tables .
i want to load all the files at once .
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Mar 17, 2014
I am testing out a blank database created over two physical files on two separate disks with one table called data which has one column called values nvarchar(max).
I filled the table up with a whole load of data and ran a select * against it. If I run Permon at the same time I can see that the read load has been spread over multiple disks as each of these disks is getting read from in parallel. If I create the same database on a single file and run the same select * again it takes much longer, proving that the read load has been distributed across multiple disks.
Now moving onto writes, this is where the confusion lies. I understand that SQL server fills files evenly until they need growing, after which it will then fill files individually until they are full in a round robin fashion unless you have trace 1117 turned on. What I don't understand is why the writes aren't distributed out whilst it is filling these file groups.
I ran an continual insert into my table with go 1000000 to monitor how the files are being filled up. I monitored where SQL server was physically placing the files as they were being inserted by running the following query:
;WITH CTE AS
(SELECT
sys.fn_PhysLocFormatter (%%physloc%%) col1,
RIGHT(LEFT(sys.fn_PhysLocFormatter (%%physloc%%),2),1) AS [Physical RID],
DATAID
[Code] ....
I could see that it would a thousand or so records into file 1, then a thousand or so into file 2, then a thousand or so into file 1 etc etc. In another words it would hit one disk, then another disk, then back to disk one to fill the file evenly. Is there any way to make SQL Server distribute the writes out in parallel so that both disks are writing in tandem?
By the looks of it, multiple disks only scale reads, as with writes only one disk is ever written to at once which is annoying. Any way to harness the write power of multiple disks?
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Mar 15, 2007
Can multiple instances of SQL 2005 Express attach to the same database files on a network share? I have seen this done before with MSDE where the database files are stored on the server, but instead of having a SQL server running on the network and then connecting to it, only the database files exist on the network share and the users connect through MSDE running on the local machine. Is this possible with SQL2005Express? I do not have the ability to share an SQL instance from one workstation to another nor do I have the ability to install an instance on the corporate server. Is it as simple as creating the database and storing the files on the share then attaching the database to the SQL Instance on each workstation?
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Jun 16, 2015
I have a requirement where in i have around 15 different flat files , filenames are fixed but folder path can be changed(i think i should use a variable for folder path). These 15 files data should go to their respective tables in the database.
Whether I need to create separate data flow task for each file or separate package? In addition to these, example : while importing product data into product table, if product ID already exists, we need to ignore it and upload only the new records.
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Jun 27, 2006
I have a couple of hundred flat files to import into database tables using SSIS.
The files can be divided into groups by the format they use. I understand that I could import each group of files that have a common format at the same time using a Foreach Loop Container.
However, the example for the Foreach Loop Container has multiple files all being imported into the same database table. In my case, each file needs to be imported into a different database table.
Is it possible to import each set of files with the same format into different tables in a simple loop? I can't see a way to make a Data Flow Destination item accept its table name dynamically, which seems to prevent me doing this.
I suppose I could make a different Data Flow Destination item for each file, in the Data Flow. Would that be a reasonable solution, or is there a simpler solution, or should I just resign myself to making a separate Data Flow for every single file?
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Aug 14, 2012
I am trying to restore multiple .bak backup SQL database files onto a new server. However, I have found that it will not allow me to restore multiple databases at once. Is there a way to do this so that I do not have to manually upload one at a time? I tried adding all the .bak files at once to the backup device window but it only did the first one listed. It would be so much easier to restore them all at once so that I do not have to continue this manual process. I am restoring them via device.
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Feb 15, 2008
I need to be able to bulk insert a bunch of tables from their corresponding flat file. I have created an XML file (see below) which has the file name/table name pair at each node. I then created a ForEachLoop task and used the Node enumeration type and the following OuterXpathString: ReferenceFiles/File. At this point I get lost. How do I pass the 2 inside node values (file name and table name) to variables which I can then use as expressions for the bulk insert task inside the Foreach?
Here is XML file:
Code Snippet
<ReferenceFiles>
<File>
<FileName>Ref_Categories.txt</FileName>
<TableName>Ref_Categories</TableName>
</File>
<File>
<FileName>Ref_Configs.txt</FileName>
<TableName>Ref_Configs</TableName>
</File>
</ReferenceFiles>
Thanks.
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Nov 29, 2007
I used the data export wizard to export a single table to a single flat file (multiple wasn't allowed). I saved the package as a *.dtsx file which I'm attempting to edit to add the additional tables.
Creating additional sources is fairly easy copy of the first source and change to the table name.
I've tried copying the destination connection and changing to a new text file, but can't get past having to add each column manually to the new destination.
How can I duplicate the mapping that must be taking place in the wizard in the *.dtsx editing environment?
This seems like a simple / common task, but I've been unable to find a solution.
Thanks, Richard
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Jun 1, 2007
Hi,
I have searched but not found quite the best way to look at this so far..
I have an application that outputs data to several text files (up to 30). These have commonality by an object name, but then contain completely different column data.
In DTS I had each of the source text file connections going to one OLE DB connection and then individual transform data tasks pointing to the one OLE DB connection.
Looking at SSIS, it would appear that I would need to have one source and one destination for each of these and therefore 30 parallel data flows?
Just wondering if there is a neater way of doing this??
It is a regular data import that happens a few times a day - the text files are named the same as the SQL tables - ie app_userdata.txt goes to app_userdata table.
Hope that explains ok and thanks in advance.
Mike
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Feb 11, 2014
I'm using the Full Text Search with the neutral language in the indexed columns. I have no stoplists so everything counts. We changed to neutral language because our customers don't have the need for language specific criteria. They just want raw text search.Everything was working great but then they found a term that they can't search and I can't figure out what's wrong. It comes down to this:
SELECT * FROM sys.dm_fts_parser('"1.2.3.4"', 1033, NULL, 0);
SELECT * FROM sys.dm_fts_parser('"1.2.3.4"', 0, NULL, 0);
In the neutral language, the parser will return "3.4", differently than the English language parsing.In the 1033 language, the parser will break all the numbers into words and the result will show correctly.I really don't want to change the language from neutral because it's working for every other query.
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Dec 29, 2007
Hey I was wondering if you
all could help me with my database. I am very noobish as databasing and I am
not sure what I have is good or bad. This is very long since I tell you basically
what my whole site does/will do. This is in hopes that it will give you a
better understanding of how many database will work.
Japanese WebSite
Purpose of the site:
This sites intention is to help people learn the 2 basic
Japanese character sets Hiragana and Katakana.
Hiragana is usually used for Japanese words and contains 46 basic characters,
plus a set of special characters. Katakana is usually used for foreign words
and also contains 46 basic characters plus a special set of characters.
Hiragana and Katakana are written differently when they are written with Japanese
characters. However if you right them in romaji (this is basically writing words
as if you where writing English and does not involve using characters. This is
used for foreigners while they are learning how to write the Japanese
characters).
Hiragana and Katakana are pronounced exactly the same.
This site will use a quiz style format. The user will first choose from the set
of Hiragana characters then the Katakana characters. Once chosen the website
will randomly choose a character and display the Japanese symbol of it. The user will then write the romaji
representation in the text box provided.
It will be then checked
and if the user is right they will get a new symbol. If they are wrong they
will have try again. The purpose for
this is for the user to get use to see how the character looks like but at the
same time writing in romaji what will be easier for them. This should make it
easier for them the next time they see the character to know how to say it.
Version 1
The site will go through many versions. This version I am
focusing on using C#,asp and ms sql. Later on in future versions ajax and
javascrip will be introduced and parts will be changed. Version 1 also uses CSS
and html.
Version 1 will contain these features.
1. A
practice section. A user will go through a wizard like setup that will first
let them choose from the basic 46 Hiragana characters (the other special
characters will be added later). They will then go to the next setup and choose
from the 46 basic Katanana characters. After they go to another section that
asks them how many repetitions they want to go through. If the user is a member(free membership) they
will have the option to save their settings that will be stored and later
available on the front page called quick links. The next page of the wizard is
actually going through the quiz. Once they are done they will see a summary of
how many they got right,wrong and how many they needed assistance on. At this
point they will be able to view a chart to see their progress(current chart
showing there last attempt, a week one
and a month one). These charts will be either made using c# or ms sql(I saw a
something that says you can make something like that but have not confirmed
it). I may do both ways for a learning experience.
2. A Registration form, login and logout.
3. Quick
link. Quick link will be for registered members so they don’t have to go
through the wizard every time to make their practice quiz up. A user will go
through the wizard once and choose what they want and save it. Quick link will be on all the pages in the
form of mostly likely a grid view. A user will be able to store 3-5 different quiz’s
(in the future maybe more). A user can then click on the quick link and it will
just take them to the quiz. The user will also will be able to update their
quiz through the grid view. This will take them to the start of the wizard and
they can go through it again and then just save over it. They will also be able
to delete there quick links through the grid view.
Currently done
Half of step 1 has been completed. Currently a user can
go through the wizard and select what they want and choose how many repetitions
and go through the quiz. However the summary and charts are not done.
Future versions.
Design will be a major part of it since I have not
focused on this at all. Also since I wanted to experiment with dynamic controls
I made all the checkboxes for the selections dynamically. This caused a problem
that a user must hit a save button since the controls have to get recreated and
updated.
I think normally this might not have been a problem but
since I since I am using a multiview(to create a effect that the wizard is all
on the same page and not the whole page has to be reloaded) it caused some
problems(I can’t really remember since it was a couple months ago when I
started but had to stop due to the amount of school work). This is why I want
to go back later and make them with ajax. This also makes another learning
experience.
Where I am at now.
When I started this I really did not think much of my
database mainly because I am not good at data basing and don’t really like it that
much. I have had a course in data basing (was with oracle though)that was part
of my program. At the time I did not understand very much since I found the
teacher going too fast and he started at chapter 8….. Also when you got 7 other
courses with it it’s hard to learn lots.
I have gone through some tutorials and stuff. I am not
very keen on reading a database book since I just don’t have the time since I
want to also read a book on c#, javascript, ajax and so forth. Also I don’t
know how much I will retain/learn from a book. With some of the stuff I just
find its better to try to something where you will be interested in and then
when needed read chapters of a book or ask questions. This is what I done for my c# stuff like I
had a c# with asp course and 2 months after the courses I started this site and
I had to ask myself what the heck did I learn in that course since it seemed I
knew nothing(and I was close to top in my class). With pounding it out and
reading I was able to accomplish what I needed. Like I still want to read a
book on C# but for now it’s just not going to happen same with Data basing.
All the pervious information was so you can understand
what my website is trying to do so you can better evaluate my database design
and answer my questions.
First Design of my
database.
This is when I just made it up on the spot and did not do
any database design or anything.
Question 1: I
forgot how to limit select query results. Like If I just want to show 10 query
results how do I do this?
I have currently 2 tables How one called Hiragana and the
other Called Katakana
HiraganaID = PK
HiraganaID HiraganaCharacter HiraganaImage
----------- -----------------
--------------------------------------------------
1 a Images/hiragana/a-o/a.jpg
2 i Images/hiragana/a-o/i.jpg
3 u Images/hiragana/a-o/u.jpg
4 e Images/hiragana/a-o/e.jpg
5 o Images/hiragana/a-o/o.jpg
6 ka Images/hiragana/ka-ko/ka.jpg
Katakana
KataKanaID = PK
KatakanaID KatakanaCharacter KatakanaImage
-----------
-------------------------------------------------- --------------------------------------------------
1 chk_Kata_a
Images/katakana/a-o/a.jpg
2 chk_Kata_i
Images/katakana/a-o/i.jpg
3 chk_Kata_u Images/katakana/a-o/u.jpg
4 chk_Kata_e
Images/katakana/a-o/e.jpg
5
chk_Kata_o
Images/katakana/a-o/o.jpg
I quickly found that this design was very bad since I was
unable to add new rows very easily. Each character set has each of its characters
in rows of 5. Some rows however have only 3 romaji characters so what they do
is leave the other cells blank representing that they don’t exist. I wanted to
do this too so I figured the easier way would be to have just null rows of
data. So say for “ya,yu,yo� it would be like this “ya,null,yu,null,o�. That’s
how it would appear in the database so when my c# would read it in it would not
have to account for rows that had less than 5 characters since it would have
already the nulls for it.
You can check a chart out here: http://www.alpha.ac.jp/japanese/img/moji.gif
So with this poor design it would result me in basically
rewriting the database.
I have thought of 2 possible ways to. I am not sure if
either way is good but I will try to explain my reasoning as much as I can.
Possible Way 1
In this approach I have 5 tables.
Hiragana
This table stores all the information about Hiragana
Characters
CREATE TABLE [dbo].[Hiragana](
[HiraganaID] [int] IDENTITY(1,1) NOT NULL,
[HiraganaCharacter] [varchar](5) COLLATE
SQL_Latin1_General_CP1_CI_AS NULL,
[HiraganaImage] [varchar](50) COLLATE
SQL_Latin1_General_CP1_CI_AS NULL,
[SortOrder] [numeric](3, 0) NOT NULL,
CONSTRAINT [PK_Hiragana] PRIMARY
KEY CLUSTERED
Katakana
This table stores all the information about Katakana
Characters
CREATE TABLE [dbo].[Katakana](
[KatakanaID] [int] IDENTITY(1,1) NOT NULL,
[KatakanaCharacter] [varchar](50) COLLATE
SQL_Latin1_General_CP1_CI_AS NULL,
[KatakanaImage] [varchar](50) COLLATE
SQL_Latin1_General_CP1_CI_AS NULL,
[SortOrder] [numeric](3, 0) NOT NULL,
CONSTRAINT [PK_Katakana] PRIMARY
KEY CLUSTERED
Quick Links
This table will store the users quick link information.
CREATE TABLE [dbo].[QuickLinks](
[QuickLinkName] [varchar](50) COLLATE
SQL_Latin1_General_CP1_CI_AS NOT NULL,
[UserID] [int] NOT NULL,
[SavedCharacters] [varchar](200) COLLATE
SQL_Latin1_General_CP1_CI_AS NOT NULL,
[SavedImagePaths] [varchar](200) COLLATE
SQL_Latin1_General_CP1_CI_AS NOT NULL
) ON [PRIMARY]
Users
This will store login information.
CREATE TABLE [dbo].[Users](
[UserID] [int] IDENTITY(1,1) NOT NULL,
[UserName] [varchar](30) COLLATE
SQL_Latin1_General_CP1_CI_AS NOT NULL,
[EmailAddress] [varchar](50) COLLATE
SQL_Latin1_General_CP1_CI_AS NOT NULL,
[Password] [varchar](50) COLLATE
SQL_Latin1_General_CP1_CI_AS NOT NULL,
[DateTimeStamp] [smalldatetime] NOT
NULL,
CONSTRAINT [PK_Users] PRIMARY
KEY CLUSTERED
Charts
This will store all information that will be used for
charts.
CREATE TABLE [dbo].[Charts](
[PracticeNum] [int] IDENTITY(1,1) NOT NULL,
[UserID] [int] NOT NULL,
[Correct] [numeric](3, 0) NOT NULL,
[Wrong] [numeric](3, 0) NOT NULL,
[AssitanceNeeded] [numeric](3, 0) NOT NULL,
[TimeDateStamp] [smalldatetime] NOT
NULL,
CONSTRAINT
[PK_Charts] PRIMARY KEY
CLUSTERED
(
Relationships
Users and QucikLinks have a PK to FK relationship this is
because quicklinks is dependent on the user having a user account. It also away
to identify which QuickLinks will belong to who.
Question 2: Currently I don’t have a primary Key for this
table what would be a good primary key for this table?
QuickLinks also does not have any relationship to either
to HiraganaCharacters or Katakana Characters. This is because I did not feel it
was necessary to grab the information from here. I simply could just grab it
from the array that holds this information from my c# code.
Question 3: How can I make this table for all users? Like
Say they choose 5 characters and save it as QuickLink1(as the
QuickLinkName). Should each of these 5
characters gets its own line or should it all be saved in one row? Or should I
even have another table to hold this data?
Option 1
QuickLinkName UserID
SavedCharacters SavedImagePaths
---------------- ----------- ------------------- --------------------------
QuickLink1 1 a image/a.jpg
QuickLink1 1 i image/i.jpg
QuickLink1 1 u image/u.jpg
QuickLink1 1 e image/e.jpg
QuickLink1 1 o image/o.jpg
QuickLink1 2 a image/a.jpg
QuickLink1 2 ya image/ya.jpg
QuickLink1 2 ki image/ki.jpg
QuickLink1 2 yo image/yo.jpg
QuickLink1 2 n image/n.jpg
Option 2
QuickLinkName UserID
SavedCharacters SavedImagePaths
---------------- ----------- ------------------- --------------------------
QuickLink1 1 a,i,u,e,o image/a.jpg, image/i.jpg,
image/u.jpg, image/e.jpg,
image/o.jpg,
QuickLink2 2 a,ya,ki,yo,n image/a.jpg,
image/ya.jpg,
image/ki.jpg, image/yo.jpg,
image/n.jpg,
Charts table also has a Relationship with Users
The thinking for this one is that Charts will use the
UserID to tell who this data belongs too. It will store the number of correct
answers, wrong answers and AssitanceNeed. This table will also hold a timeDateStamp.
The reason for this is because I want to have a chart that displays the last
Quiz they did and also the stats of a week’s worth of quizzes, and month’s
worth of quiz’s. With a timeDateStamp I should be able to add up all those columns
and then display them for whatever period I choose.
Second Possible
Way.
Characters
CREATE TABLE [dbo].[Chracters](
[CharacterID] [int] NOT NULL,
[CharacterName] [varchar](5) COLLATE
SQL_Latin1_General_CP1_CI_AS NULL,
[CharacterPath] [varchar](50) COLLATE
SQL_Latin1_General_CP1_CI_AS NULL,
[SortOrder] [numeric](3, 0) NOT NULL,
CONSTRAINT [PK_Chracters] PRIMARY
KEY CLUSTERED
This way uses 4 charts instead of 5. The main difference
is that the Hiragana Charts and Katakana Charts have been merged into one
table.
This way has another relationship between Characters and
Quick Links. This will store the Character
ID instead of the actual Characters and Path through the use of C# code. When a
user selects a box it will make a note of the CharacterID. When it is time for
the user to use the QuickLink it will join the tables together and filter out
the CharacterIDs. Giving me the CharacterName and Path.
The problem with this way is that well the code I written
will need to be changed since currently it grabs stuff from 2 tables into one.
I don’t know if this would save anytime over the first way either.
I hope these are sort of close to an alright design since
I did try to think about how my website would interact with the database.
Sorry for it being so long.
Summary of Questions
Question 1: I
forgot how to limit select query results. Like If I just want to show 10 query
results how do I do this?
Question 2: Currently I don’t have a primary Key for this
table what would be a good primary key for this table?
Question 3: How can I make this table for all users? Like
Say they choose 5 characters and save it as QuickLink1(as the
QuickLinkName). Should each of these 5
characters gets its own line or should it all be saved in one row? Or should I
even have another table to hold this data?
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Mar 5, 2008
hi experts,
i have a postcode database that i need to update. the database cnotains of 6tables, the file i ahev has all the information at once, so i have to organize it and insert records into the appropriate tables.
this is the first time i'm doign this so i would like to know what the best way to do? do i need to create a stored procedure or a script, or may be something special and efficient that i do not know yet.
any advise will be very appreciated
thanks in advance
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Jul 27, 1998
After found out the `transfer object` command in MS SQL EM didn`t work well
in my databases, I started code by myself to generate the `Create xxx` statements to copy objects across databases (structure only) using SQL.
I`ve coded out most of them, logins, defaults, UDT, tables, stored procedures,
but then I started to have problems with primary keys and foreign key const.
Has anyone tried to do the same thing before or is there some SQL scripts created to handle this already? Please advise me.
I am thinking to use SQL-DMO with VBscript now. But I still prefer a good
SQL script (old thought, the DB-Lib based `isql` is more reliable than the
SQL-OLE).
Thanks for any suggestion.
- Ken
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Nov 20, 2006
Hello,
I need a tool that will let me model a SQL Server 2005 database and then generate the tables, constraints, etc. from the model. I've never used a modeling tool so my knowledge is quite limited. I don't need to model or reverse engineer an application - my sole concern is on the SQL Server database side. I'm not concerned if the tool integrates with Visual Studio. And, of course, price is one consideration.
Are there any good tools that I should look at?
Thanks,
BCB
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Mar 13, 2008
I am actually a newbie to asp.net and i m using ASP.net 3.5 i.e, VWD 2008. i am using it for the first time as my tool to develop a website for my final year project. i am planning to develop an online job recruitment site like www.monster.com. Rigth now i am confused how will i manage my database. i've learned to use databinding concept of SQL SERVER in VWD 2008 but will it be enough to handle such huge # of Job postings and employers and as well as Resumes in pdf of word format? or do i have to create a separate databse in SQL Server and to connect it with my website? i am confused at the moment. please help me in this matter.
Regards,
Jigzy
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Aug 4, 2004
I am trying to write (my first, unfortunatly) DTS, and am having some problems.
I need to be able to import multiple flatfiles (all in the same format, just with different schema), each one going into a different table. I have written an application to call my DTS, sending it variables for the tablename and the filename. This works fine when I test it on a single flatfile.
My problem is, the Tranformation object does not reset after each DTS call, so I get "Column does not exist" errors after the first successful import. I can go into the DTS Manager and reset the Transformation options, but that would defeat the purpose of automation. Is there anyway to reset, or another technique, the Transformation object so that it will continuosly work on files that use different schema?
I am very new at DTS, so please consider me "ignorant" when replying.
Thanks in advance.
- Jordan
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Mar 2, 2007
Could not load file or assembly 'Microsoft.DataWarehouse, version 9.0.242.0, Culture=neutral,publicKeyToken=89845dcd8080cc91' - the system cannot find the file specified.
I get this message when I try to do a forcast from the Data Mining - Forecast menu.
Forecast from Table Tools, Analyse, Forecast works perfect.
Running Vista and using the DMAddins_SampleData workbook.
Any ideas ?
Trond
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Oct 29, 2007
Hi,
I am currently working on SQL server reporting. I have created custom assemblies. I am loading the custom assebly in the rdl file.
I am getting following exception
An error occurred while executing OnInit: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. (rsErrorInOnInit)
Please let me know if anyone knows the reason.
Thanks in Advance.
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Dec 17, 2003
I have multiple .sql files, exe each one manually is a pain, so how do you run multiple .sql files all at once? Beside creating a batch file, are there t-sql commands that could execute .sql files?
Thanks!
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May 18, 2004
I have a rather large sale transaction DB. Basic header, and detail tables. I am providing a third party company with daily sales information, and I need to give them back data from about 8 or 9 months ago. I currently have a DTS package that gets sales for the current day, but since I have to go back, I have to manually edit the query in the DTS package, and change the date range...UNLESS ...
Blah, blah, blah. The problem is that they can only take the data in Daily files. So, there would be ONE file for each day. I really don't need to be manually running these jobs, so I'm wondering if someone could point me to a way of writing a package (maybe ActiveX, not sure) that would run through a loop, basically, of dates, and create a seperate file for each day. Versus having to edit a generic DTS package, and changing the date range 350 times...
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Jan 24, 2007
I need to restore a database that has a bak file and many log files. Is there a way I can do this with one recovery step?
Or do I need to use a different restore object for each file?
MTmace
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Jun 7, 2006
Using an expression to set the log filename to include the date and time results in 3 log files being created.
Ummm. Why? I only ran the package once. Is SSIS not sharing my log file connection among the different components?
On first thought my workaround would involve using a script task to "set" the log file name to a variable and use an expression to set the log connection to the variable. But the problem with that is that logging starts BEFORE the script task is run...
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Apr 20, 2007
I have a job with a single step that executes a stored procedure that performs the following steps:
1. Checks for the existance of a file A in a folder A
2. If it exists,
a. executes the cmdshell to run a DTS package to drop a table, recreate it and load the data in the file A to table X
b. runs other stored procedures that use the data in table X to create other tables Y and Z
c. executes the cndshell to remove and rename the file A from Folder A into Folder B
What I'd like to do is use this same stored procedure if possible, but create a job or another store procedure that would loop thru and process multiple files in Folder A instead of just one.
Any suggestions would be greatly appreciated
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