Database

Is it possible to design Custom Constraints ???

30-Jul-09 16:52

Hey, I guess you repeated your question.

www.Developerof.NET29-Jul-09 22:15

www.Developerof.NET

29-Jul-09 22:15

Hi all,

I need to know whether SQL provides custom constraints??? i.e if i want to enforce a constraint on a Parent table given that its key is been referenced as a foriegn key in a child table, that it should have atleast one child???

Is it possible?????

When you fail to plan, you are planning to fail.

Re: Is it possible to design Custom Constraints ???

Robin_Roy30-Jul-09 16:54

Join two tables of different servers in SSIS

30-Jul-09 16:54

You can wrte triggers for the same. However it is not a good approach.
Better check in your stored procedure with the condition...

CodalcoholicNBrainy29-Jul-09 7:12

CodalcoholicNBrainy

29-Jul-09 7:12

Hi,

I am new to SSIS. I have two different servers, one is AS400 and other in SQL server. There is one table ABC on AS400 and two table ABC and XYZ in SQL server. I need to take the join of the tables ABC (of AS400) and XYZ of SQL server and need to push the matching records into ABC table of SQL server.

Please advise me how can I achieve this in SSIS.

Thanks in Advance.

CodeManiac
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Abhijit Jana29-Jul-09 7:19

Abhijit Jana

29-Jul-09 7:19

This may help you Big Grin | :-D

Abhijit Jana | Codeproject MVP
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CodalcoholicNBrainy29-Jul-09 7:25

CodalcoholicNBrainy

29-Jul-09 7:25

Hi Abhijit,
Thanks for quick reply. But on clicking the link "This may help you", it redirects me to some where else and I do not have any registration there.
It would be great if you can post the solution here.
Thanks Big Grin | :-D

CodeManiac
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Abhijit Jana31-Jul-09 9:45

Abhijit Jana

31-Jul-09 9:45

I really surprised to see the same thing happening with me. D'Oh! | :doh:

It was fine, when I was post the answer. D'Oh! | :doh:

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.
View My Latest Article

Syed Mehroz Alam1-Aug-09 2:02

Syed Mehroz Alam

1-Aug-09 2:02

Hi Abhijit/CodeManiac,

Expert exchange displays the answers at the bottom when your referrer is Google. Try searching for the question title "Linking, Connecting MS SQL 2000 to AS400 Database" using Google, go to the first result, and scroll down to the bottom of page to view the replies.

Hope that helps.

Regards,

Syed Mehroz Alam
My Blog | My Articles

Computers are incredibly fast, accurate, and stupid; humans are incredibly slow, inaccurate and brilliant; together they are powerful beyond imagination. - Albert Einstein

Robin_Roy29-Jul-09 17:53

synchronization of two databases

29-Jul-09 17:53

One option could be, create multiple Data Source (one for AS400 and another for SQL Server) in your DataFlow task and then use Union All Data Flow transformation Item and set the output to one Data Destination that is your SQL Server.

Robert Vrinceanu28-Jul-09 21:35

Robert Vrinceanu

28-Jul-09 21:35

Hi,
I have two identical databases whitch are different only by name (DB1 and DB2)
Eatch database is on one computer (PC1 and PC2) into a network.
Database DB1 contains table Tab1.
Database DB2 contains table Tab2.
The two tables Tab1 and Tab2 are identical as structure an receive the same data from an external aplication.
There are moments when the network is interrupted, from different causes and the two tables no longer contains the same data.
To synchronize the tables I have to copy only the rows which are lost from Tab1 in Tab2.
By a stored procedure i have to know which are the numbers of rows lost from Tab2 to fill in with rows from Tab1
I actually have to copy a number of lines from Tab1 in Tab2 with the condition to know which are the rows lost from Tab2.
Someone knows how can I do that? Thanks.

SeMartens28-Jul-09 23:43

SeMartens

28-Jul-09 23:43

Hi
Do you rows have an unique identifier? If yes you could use something like this:

insert into tab2 select * from tab1 where not exists (select table2.id from tab2 as table2 where table2.id = tab1.id)

This will only work for added rows. Changing existing rows and synchronizing deleted rows will not work with this.

Regards
Sebastian

It's not a bug, it's a feature!

Check out my CodeProject article Permission-by-aspect.

Me in Softwareland.

Blue_Boy29-Jul-09 0:35

Blue_Boy

29-Jul-09 0:35

Use this:

Case 1

Insert into DB1.dbo.Table1 <br />
select * DB2.dbo.Table2 from where DB2.dbo.Table2.ID not in (select DB1.dbo.Table1.ID from DB1.dbo.Table1 )

Case 2:

Insert into DB2.dbo.Table2 <br />
select * DB1.dbo.Table1 from where DB1.dbo.Table1.ID not in (select DB2.dbo.Table2.ID from DB2.dbo.Table2)

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Robert Vrinceanu29-Jul-09 3:51

Robert Vrinceanu

29-Jul-09 3:51

Thank you all.
The problem is that databases DB1 and DB2 are on different computers.

Eddy Vluggen29-Jul-09 6:15

Eddy Vluggen

29-Jul-09 6:15

What brand are DB1 and DB2? If it's SQL Server, you could add a linked server[^] Smile | :)

http://www.sqlaccessories.com/SQL_Data_Examiner/[^]

David Skelly29-Jul-09 5:21

David Skelly

29-Jul-09 5:21

Robin_Roy29-Jul-09 17:55

29-Jul-09 17:55

Which database engine are you using. If you are using MS-SQL Server, it is fairly simple using linked server to keep both the dB in sync using some simple queries and statements...

Robert Vrinceanu30-Jul-09 0:45

Robert Vrinceanu

30-Jul-09 0:45

Yes, DB1 is MSSQL 2005 and DB2 is MSSQL2000.
I haven't experience with "linked server"
Can you indicate some examples.
Thanks.

Regards,
Robert

Robin_Roy30-Jul-09 0:52

30-Jul-09 0:52

You can get good details from the following URL
http://msdn.microsoft.com/en-us/library/aa213778(SQL.80).aspx

Let me know, if you have any difficulty