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siaswar wrote: should I fill it (just foreign keys) when filling student table?
Your data model isn't clear.
I will presume that any one book can only be used by one class. Thus one book is associated with only one class. So your tables and fields would look like the following.
class: class_id, class_name
book: book_id, book_name, class_id
student: student_id, student_name
Students takes classes so there must be a way for a student to be associated to a class. So that gives another table.
student_class_link: student_id, class_id
For this table you would populate it as follows.
1. Create classes - fill class table.
2. Assign books to classes - fill in book table and include appropriate class id.
3. Create students - fill student table
4. Assign students to class - fill in student_class_link table. (It is NOT 'automatic' you must add the values.)
If I want to find what books are associated with which student I do NOT need another table. That is because I can use the following relationship to get the books.
student -> student_class_link -> class -> book
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I don't use class in this manner. I mean grade for classes such class A is for student of 7 years old and class B is for student in age 8. student table has class_id field too. in this way one student can have every book of class like, math, english,... and each book belong to all student in class. so I create studentbook table which has book and student ID and an extra field: RESULT. well student table will be fill by a user of software. afther a long time he/she will import student result which goes in studentbook table.
question is how and when studentbook.st_id and studentbook.book_id should give value. suggest a query and when use the query, when importing the students or when want to import results?!
As you know it's my first database as homework. 
Thanks,
Sia swar
Baluch
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siaswar wrote: when want to import results?!
Your requirements are still not clear to me.
But regardless your "studentbook" table still represents a link table (two tables linked together.)
You fill it in when you have the necessary information to fill it in. Which, as best as I can figure, you would have when you assigned a student to a class. However if there is a 'check out book' process (a manual process perhaps done the first day of class) then it would be done then.
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Hi,
AS the subject line states, currently it is being done by a third party company, they run scripts to do this. These scripts are set up to run every 3 minutes.
We are trying to rewrite this locally. Would SSIS be a way to handle this? Any other way?
if anyone could point in the right direction, also where to start with SSIS, I have used DTS Packages before. I opened SSIS and looks pretty overwhelming!
Thanks a lot!
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SSIS is the way to go in my opinion. You can create a simple data task in a package and use a job to run it every 3 minutes.
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vanikanc wrote: Any other way?
You could do it is a OS shell script. Just export from Oracle and import to SQL server, with some post processing via procs in SQL Server if needed.
Or write your own service of course. C#, Java, etc.
In the past I have not been impressed with SSIS error handling. But I am also very familiar with writing C#/Java database code so I am biased.
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SSIS is the best choice for a tool candidate that will be used for data transfer
But you can create a SP and create a job with 3 minutes interval in each run
Within the SP you can connect to Oracle DB and transfer your data using stored procedure.
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I wrote simple winform ( part of it with WPF ).
In the simple application i have some place that i get information from database ( from mdf file ).
The code ..
<br />
public SomeDBObject : System.Data.Linq.DataContext<br />
{<br />
... some code ...<br />
}<br />
<br />
List< SomeDBObject > listViewItem = null;<br />
try<br />
{<br />
listViewItem = new List< SomeDBObject >();<br />
<br />
using( DBDataContext dBDataContext = new DBDataContext( mdf_File_Path_String ) )<br />
{<br />
listViewItem.AddRange( from item in dBDataContext.dBs<br />
select ( SomeDBObject ) item );<br />
}<br />
}<br />
catch( Exception e )<br />
{<br />
... <br />
}<br />
now, on my machine and on some other machine all work fine.
But some on some other machine that i install ( clean machine ) my application i get exception from the line
using( DBDataContext dBDataContext = new DBDataContext( mdfFilePathString ) )
and the exception is about some problem with the sql on the machine.
The exception:
a database with the same name exists, or specified file cannot be opened, or it is located on unc share.
This is happaning with win7 and win Xp also.
I try to re-install the sql 2008 express - but this is not halping.
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We're about to migrate from 2005 to 2008. Is there anything we should be aware of regarding sql code or anything functional that changed? Are we going to have to refactor our store procs and views to make them work?
".45 ACP - because shooting twice is just silly" - JSOP, 2010
-----
You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997
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It's been a couple of years, but it was pretty slick. There is an update advisor that notes code that is being depreciated. I'v heard that you should check with any third party software you have to make sure it will work with 2008--we did not have that issue. If changing servers, check orphaned logins.
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I agree with leckey. The deprecated items can be a pain but not hard to change.
Do not forget to set options like xp_cmdshell if you use it.
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Been down that road twice now and not had any problems - seems fairly easy with no gotchas either time.
"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." Red Adair.
nils illegitimus carborundum
me, me, me
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This was one of our simplest upgrades ever, there was no problem with deprecated code, smooth as cream.
Never underestimate the power of human stupidity
RAH
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Hello,
It is best practise to run Upgrade Advisor before starting an upgrade.
Please refer to SQL Server 2008 Upgrade Advisor download links.
I have done this upgrade a few times without any problem.
I hope it will be easy for your case also
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Yes, you saw it right, SQL Server 7. Don't ask.
http://support.microsoft.com/kb/238822[^]
Does anyone have a copy of the RepRbld.exe file mentioned in item 3 in the above link?
Thanks
-Sean
----
Fire Nuts
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Hello all,
Am trying to create a function in access to get records from an excel file from sheet1 save it to one table im access(both 2007) , .... , unbeleivable ... cant find any hint on the net .... all doing the opposite (exporting to excel)  its driving crazy .....
any body can help???
Regards,,,,,
0 will always beats the 1.
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Wow you really need some google foo. I see an overwhelming number of examples[^]
Never underestimate the power of human stupidity
RAH
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Thanks Man,
But honestly non of the search results gave a clear solution ... 
my problem is ,or the missing link in my issue is how to make my defined objects to be the represent an excel sheet on my drive. ie:
Dim xapp
Dim xworkb
Dim xworks
Set xapp= CreateObject("Excel.Application") this will create an excel object which i dont need.
also
Set xapp= Excel.Application
Set xworkb= xapp.Workbooks.Open(1) this is wrong i think ??
how to set those variables to represent an excel sheet on C:\book1.xlsx so i can manipulate the data and transfer it to recordset then to my table .
Helpppp
0 will always beats the 1.
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This looks like more of an Excel VBA question rather than a database question. You might get a better answer if you post on the Visual Basic forum, if you have not done so already.
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yeah sure ... nothing expected ... most how to export from DB to excel .... and the next giving how to create new excel .
some uses: DoCmd.TransferSpreadsheet which is usless for me, since i need to idendity the excel sheet as an abject and to do some calculations on records before dumping it in the table .
0 will always beats the 1.
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This[^] should help to get you started on reading from Excel.
I must get a clever new signature for 2011.
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Thanks Richard, but am not familiar with C# honestly, ... also , reading from excel that i create , i think is bit easy , but my excel sheet is alreacy exist , all i need is to - if i can say - pass this particular excel sheet to a function, in whcih it will read and manipulate.
Any article for same topic in VBA ????
Regards,
0 will always beats the 1.
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scorp_scorp wrote: Any article for same topic in VBA
I don't know of any, or whether it is possible to write to Access from VBA. Try a Google search and see what you can find; I know there are a number of specialist Excel technical forums around.
I must get a clever new signature for 2011.
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