Relationships Correctly Designed?
Feb 26, 2008
I am new to SQL Server 2005. I have tried to be a good student and learn on my own about designing the database. However, I am facing a blockage of getting data into the database. I want to verify I have setup the relationships correctly. Here is the tables.
1. A Manufacture has an Address.
2. A Manufacturer has one or more Distribution Points.
3. A Distribution Point has an Address.
The Manufacturer --> Address is a one-to-one relationship.
The Distribution Point --> Address is a one-to-one relationship.
The Manufacturer --> Distribution Point is a one-to-many relationship.
The manufacturer table has a FK to the address id (PK).
The distribution table has a FK to the address id (PK).
The distribution table has a FK to the Manufacturer id (PK).
Address has several other FK, but not used in this scenario.
The INSERT and UPDATE Specification for the Delete Rule and Update Rule is set to "No Action" for the Manufacturer and Address tables. In the Distribution Point table, the relationship for the update rule involving the relationship with the Address and Manufacturer tables is set to CASCADE. What this tells me is SQL Server 2005 will update the table should changes occur in Address and Manufacturer table.
Is there anything else I can check to be sure the issue I am facing is NOT the deisgn of the database?
Thanks for taking the time to read my post.
Russ
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Oct 22, 2007
I have the following query in an ExecuteSQL Task:
Insert Into Table2
Select * From Table1 Where Column1Val = '4'
As you can see, I don't need any parameters so I havent configured any. Also, there should not be any result set so I shouldnt need to configure a resultset parameter.
Why is the above query failing with
Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly
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Jan 27, 2007
Per the subject line :Is SQL Server Express designed for production use ?
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Sep 27, 2001
I have a Access database which has a address field with multiple data sets in it. I am new to writing code and am having trouble finding a example which will help me split these values out into three seperate fields.
Notice how there is no good order in how they are placed.... Some entry's have commas and some don't. Some have periods and some don't.
EX:
[BILL_ADDR3]
AMHERST, WI. 54406
ASHLAND, WI 54806
ASKOV MN 55704
I then need to convert the state to a state code ie:
2 AK
3 AL
4 AR
5 CA
6 CO
7 CT
8 DC
9 DE
10 FL
11 GA
12 HI
13 IA
14 ID
15 IL
16 IN
17 KS
18 KY
Any good sources of information would be greatly appreciated..... Thank You
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Jan 23, 2007
It's funny:
Everyone thinks that CSVs are awesome to transport data. I mean after all, SSIS defaults to Comma Delimited files. Even Excel defaults to it. Microsoft is supposed to be our leader! They should get this right. And get the terminology correct too. How many people describe the file as comma separated? It's delimited! Even SQL server calls it delimited by the "delimited" drop down.
CSVs suck and i will tell you why:
When you transport any text field (especially Address) it has the possibility of containing a comma. This causes data to be parsed into the wrong fields. Why in God's grace would you EVER get in the habit of choosing a delimiter that SOMETIMES doesn't work?
I'll tell you a little short story:
I have been waiting (at work) for like a month for a guy to export data and give me this file. Well today i finally got that file. He was in a hurry and used the Defaults to export this file. I don't blame him for being in a hurry and using the defaults. Well the defaults made the import NOT work because the data parsed into the wrong columns. Comma delimited would work if there was a text qualifier. But the default is comma delimited and NO text qualifier. What idiot thought that would be good. Or it was the separation of duties that eff'd this one up? Who knows?
Fix your products!
That's my .02
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Mar 28, 2006
I am working on an application with a number of tables (which I can't
change) that have data of the form a1, b1, c1... a2, b2, c2...a3, b3,
c3... The tables contain 5 to 10 sets of data in each row.
I want to create a stored procedure to return a cursor with a row for
each set of data for a row of the table. I know I can use unions:
select a1 as a, b1 as b , c1 as c... from sometable where pk=@pk
union
select a2, b2, c2... from sometable where pk=@pk
union
select a3...
Is there a way that is more efficient (eliminates requerying the table and all the unions)?
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Jan 28, 2007
Per the subject line :
Is SQL Server Express designed for production use?
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Apr 3, 2007
I've registered with GoDaddy for my site. I've used Visual Web Dev 2005 with SQL Server Mgmt Express 2005 to create my database etc. Now with GoDaddy, I need to "recreate" the database on their server again, but I don't want to go throug the whole process again. I just want to use their query editor to generate the database online.GoDaddy mentions a "personal-sql" file that SQL Server 2000 generates, but I can't find anything like that with what I have. Thanks.
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Jan 8, 2007
I have built the reports that I need using Visual Studio and the SQL 2005 Reporting Server, but now I need a way to view the reports via a web browser.
I am not much of a web/programming expert, so any help that could walk me through the process of publishing the .rdl files that I have created via a web browser would be much, much appreciated. Again, I am a novice in the the web arena, so the more straight forward the steps the better.
Thanks!
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Jun 30, 2006
Hi folks, I'm trying to collapse a column on a report that's designed in table mode. I was trying to mimick what happens in a matrix where you have a column that has a '+' in it that makes toggles the visibility of a column to its immediate right (The reason I'm not using Matrix mode is I continually get "out of memory" errors on the report I'm generating.).
When I select the column and mark visible to 'false' in the properties, it of course asks me for a TextBox. My problem is that I am unable to find a scenario where the textbox is "in the proper group". Is this something that's supported, and if so, I'd appreciate some pointers to lead me in the right direction.
Thanks.
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May 30, 2008
Hi everyone. I am having difficulties with a cursor that I am trying to write. The purpose of the cursor is to loop through all tables in a selected Database and revoke "Select" access to that table for the indicated role (RoleToRevoke). I am getting the error on the @name variable within the REVOKE statement. I have placed a comment indicating where I am getting the error. Is there a way to have sql server interpret this @name variable within the REVOKE statement? Thanks for your help.
Code Snippet
USE [Database_Name];
Declare cursorExample Cursor for
Select TABLE_NAME
from information_schema.tables
Where TABLE_TYPE='Base Table'
and TABLE_SCHEMA='dbo'
Declare @name as varchar(255)
Declare @ErrorSave as int
Declare @ErrorCount as int
Open cursorExample
Fetch Next from cursorExample into @name
SET @ErrorSave = 0
SET @ErrorCount = 0
Begin Tran
While @@Fetch_Status=0
Begin
--Getting Error on Line below on @name
REVOKE SELECT ON OBJECT::@name FROM RoletoRevoke;
IF (@@ERROR <> 0)
BEGIN
Print 'Error Revoking Access to Table: ' + CAST(@name AS varchar(75))
SELECT @ErrorCount = @ErrorCount + 1
END
IF (@@ERROR = 0)
BEGIN
Print 'Successful Revoking Select Rights on Table: ' + CAST(@name AS varchar(75))
SELECT @ErrorSave = @ErrorSave + 1
END
Fetch Next from cursorExample into @name
End
IF @ErrorCount = 0
BEGIN
COMMIT TRAN
PRINT 'COMMITTED TRANSACTION'
PRINT 'Total Tables Affected:' + CAST(@ErrorSave AS varchar(75))
END
ELSE
BEGIN
ROLLBACK TRAN
PRINT 'ROLLED BACK TRANSACTION'
END
Close cursorExample
Deallocate cursorExample
GO
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Nov 6, 2007
In Past, I created DTS package on 2000 version, that import TXT file into SQL 2000 table.
Now I migrated the DTS to DTSX (SSIS) package, and all is working fine. but I can not find how can I edit or modify the target table name in DTSX(SSIS) package in BI Studio.
can you some body help.
Thanks
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Apr 27, 2008
I'm developing a database-driven program using SQL server 2000 and Visual Basic 2005.
Most of the guys say professional programming is doing the validation stuff (such as the constraints and data integrity stuff like" [0-9][1] " and the use of LIKE IN keywords etc.) in the databse itself.
say i did the data validation contraints in SQL server itself. and now i connect the database with the interface made in 2005. and say a person enters some invalid data through the interface. but the error messages are generated by SQL server. how am i to display the SQL server generated error messages in the VB made interface??
PLS HELP ME .. if the question is not clear pls tell so that i can explain it further.
PLS PLS PLS HELP ME
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Apr 27, 2008
I'm developing a database-driven program using SQL server 2000 and Visual Basic 2005.
Most of the guys say professional programming is doing the validation stuff (such as the constraints and data integrity stuff like" [0-9][1] " and the use of LIKE IN keywords etc.) in the databse itself.
say i did the data validation contraints in SQL server itself. and now i connect the database with the interface made in 2005. and say a person enters some invalid data through the interface. but the error messages are generated by SQL server. how am i to display the SQL server generated error messages in the VB made interface??
PLS HELP ME .. if the question is not clear pls tell so that i can explain it further.
PLS PLS PLS HELP ME
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May 29, 2007
Ok, so I open up a book on beginning sql and it discusses relationships.There is something that appears wrong. I am not understanding how the book is describing the one to one relationship. In it's figure, it shows that the same agency can have two different artist id's. But according to it's definition of one to one list can be related from both tables.Can someone explain this further please?Thanks in advance.
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Aug 8, 2007
How do you show many to many relationships in ASP.NET with datasources?
I can retrieve the information from the database easily but I can't manage to save that information into a variable so that i can then call for only information in the M2M table related to the ID Key I want. For example..1 <asp:Label ID="lblTestLabel" Text='<%# DataBinder.Eval(Container.DataItem, "title_id") %>' Runat="server" />
2
3 <script language="VB" runat="server">
4 sub Page_Load(sender as Object, e as EventArgs)
5 Dim lblTitleID As Label = Repeater1.FindControl("lblTestLabel")
6 Response.Write(lblTitleID.text)
7 End Sub
8 </script>
When I try to run this script it dosn't work and I get the error:
System.NullReferenceException: Object reference not set to an instance of an object.
For line 6 of the code above. Is there a way to just retrieve information from a datasource without storing information into a label first?
PS: I use sqldatasource tags to retrieve information like:1 <asp:SqlDataSource ID="DataSet1" runat="server"
2 ConnectionString="Driver={MySQL ODBC 3.51 Driver};server=localhost;database=;user=;pwd=;option=3;"
3 ProviderName="System.Data.Odbc"
4 SelectCommand="Select * from titles order by title_id">
5 </asp:SqlDataSource>
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Aug 10, 2007
Can someone help me sort something out. Suppose we have two tables in a database.One is named Person, and one is named Birthday. Is this a many to many relationshipor a 1 to many relationship?
Person has many birthdays. Example. Joe Schmoe has a birthday for every year of his life. birthday(7/11/1976) has many People (Many people have a birthday on 7/11/1976.
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Feb 2, 2004
Is there any easy way of getting all the relationships for the tables in aSQL server db? I've looked through Google and the Books online but I'm barely scratching the surface on the systables. I know I can go to each individual table and get the dependencies or even print out the diagram through Enterprise Manager but I really don't want to have to type out all the primary/foreign keys for 100+ tables. Any help on getting this data either through a 3rd party software or querying the systables would be great.
THT
DMW
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Mar 21, 2001
We have a table with approximately 150 colums and 2/3 of them are bit datatypes. We do not expect much activity on this table. Does it make sense to separate it into a few tables instead of 1 with one-to-one relationships? Will the join(s) significantly slow down our web application? Thank you
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Aug 6, 2004
My hosting servers have "myLittleAdmin" installed. I am new to ms sql I have some experience with Access but I have never set up Relationships inside the database server. I have always just relied on my application logic to call the relations. What is the benefit to setting up relationships in sql, if any?
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Nov 11, 2004
Is there a tool in Enterprise manager to list out the one to many & many relationships with a database?????:?:
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Feb 1, 2007
Hey, I have SQL Sever Enterpise Manager. I am new at this company and I need to know the relationships between ALL the tables. Is there anywhere I can go to view all the primary keys and the relationships?
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Jun 1, 2007
I am viewing tables in the ‘object explorer’- I can see the tables. If I open it up I can see columns, keys, constraints etc…
So I can see they key… can I tell which table/field the foreign key is connected to?
thanks
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Oct 17, 2007
Hello,
I have 3 tables. Posts, PostsTags and Tags.
This is a many to many relationship.
So PostsTags has the following columns:
PostId (PK) and TagId (PK)
I always did that way in SQL 2005.
In some examples I see PostsTags have 3 columns:
PostTagId(PK), PostId (FK), TagId (FK)
Should I use it this way, instead?
Thanks,
Miguel
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Jul 13, 2006
Is it possible to have 2 different databases and create relationships inbetween the two? I am thinking about way down the road and the size of the databases and I believe that I need to split my data into multiple databases to keep from running into the size limitations.
Davids Learning
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May 29, 2007
Ok, so I open up a book on beginning sql and it discusses relationships.
There is something that appears wrong. I am not understanding how the book is describing the one to one relationship. In it's figure, it shows that the same agency can have two different artist id's. But according to it's definition of one to one list can be related from both tables.
http://foo.gearsector.com/foo/instr_scrns/oneToMany.gif
Can someone explain this further please?
Thanks in advance.
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Apr 1, 2008
How can I use with relationShips in SQl?
Tamir BLoch .
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Apr 3, 2007
Hello!
I have a really small database in terms of number of objects, but very big in terms of data (possibly millions of records). I always try to design my databases to be in the 3rd normal form (at least I hope they are!), but sometimes (for databases consisting of just a few tables) maintaining M:N relationships looks like an over-bloated approach to me... Let's see an actual example. I have a table like this:
Code SnippetCreate table [Airfares]
(
[OriginCity] Char(3) NOT NULL,
[DestCity] Char(3) NOT NULL,
[FareDate] Datetime Default getdate() NOT NULL,
[Price] Decimal(9,2) Default 0 NOT NULL,
[PriceChange] Decimal(9,2) Default 0 NOT NULL,
[Wrong] Bit Default 0 NOT NULL,
Primary Key ([OriginCity],[DestCity],[FareDate])
)
go
Now, at first there also was an Airline nvarchar(50) field, which stored the airline name. But now the client requested to store fares for a few airlines if it's the same price and city pair. This way we can have 3 airlines offering the same price on the same itinerary for example. So I added a dictionary table called Airlines:
Code SnippetCreate table [Airlines]
(
[AirlineCode] Char(2) NOT NULL,
[Name] Nvarchar(50) NOT NULL,
Primary Key ([AirlineCode])
)
go
Now, there are two things I can do. We are obviously dealing with the M:N relationship type here. I can either add another nvarchar column in the first table, like Airlines nvarchar(255) and store something like 'AA,AB,AC' there - those would be airline codes. OR I could do it the proper way and create a cross-reference table which will connect both Airfares and Airlines tables (this will store as many records as there are airlines for that particular itinerary, offerring the same price):
Code SnippetCreate table [AirfareAirlines]
(
[AirlineCode] Char(2) NOT NULL,
[OriginCity] Char(3) NOT NULL,
[DestCity] Char(3) NOT NULL,
[FareDate] Datetime Default getdate() NOT NULL,
Primary Key ([AirlineCode],[OriginCity],[DestCity],[FareDate])
)
go
But this is starting to look overly complicated, isn't it? The pros of this are I'm going to get real relationships, referential integrity, etc., but cons are more difficult code to query all this. What would you do? Do we really need referential integrity everywhere? Are there times when we're better not using relationships? I have seen many programmers skip referential integrity before, which always made me think they are missing something important in a Relational Database Management System.
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Mar 30, 2004
and (jobs.ApplicationsClosed > getdate() OR jobs.ApplicationsClosed = getdate())
The above statement does not pick jobs.ApplicationsClosed= 3/30/2004(that is today'sdate)
If I change 3/30/2004 to 3/31/2004 it picks it up. What is wrong with my syntax?
Thanks!
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Dec 9, 2007
Hi guys,
I'm trying to use the bcp utility to transfer data from an SQL Server table (CUSTOMERS) to a text file (test.txt).
Here is what I have:
DECLARE @FileName varchar(50)
SET @FileName = 'C: est.txt'
EXEC bcp BAirwaysDB..CUSTOMERS out @FileName -S<servername> -T
only I keep getting the error:
Msg 102, Level 15, State 1, Line 4
Incorrect syntax near '.'.
and when running:
bcp BAirwaysDB..CUSTOMERS out C: est.txt -S<servername> -T
on the command line I get:
SQLState = 28000, NativeError = 18456
Error = [Microsoft][SQL Native Client][SQL Server]Login failed for user 'RIVERAMelanie'.
SQLState = 42000, NativeError = 4060
Error = [Microsoft][SQL Native Client][SQL Server]Cannot open database "BAirways" requested by the login. The login failed.
Can you see where I'm going wrong with this? Any feedback would be really appreciated.
Thank you
Butterfly82
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Oct 12, 2007
Hi,
I have the following simple SP..
There is a field which I'm doing a sUM() on to get a total for a QtyRecieved from one of the tbls in the SP..
However, the QtyRecieved field is set to be a two decimal place numeric field.
The sp works fine without issues until on the of the qty received is not a round number.
If it's a number with a decimal in it (i.e 5.5) then this is show as a seperate result and not SUM'd with the others.
Any ideas why?
SELECT PDS_Login.Supplier_Products.ProductName, PDS_Login.Supplier_Products.ProductCode, dbo.Suppliers_POs_Details.POID,
dbo.Suppliers_POs_Details.PODetailsID, dbo.Suppliers_POs_Details.Qty, dbo.Suppliers_POs_Details.PricePerItem,
dbo.Suppliers_POs_Details.PoDetailsStatus, dbo.Suppliers_POs_Details.PoDateExpected, dbo.Suppliers_POs_Details.PODateReceived,
PDS_Login.Supplier_Products.UOM, PDS_Login.Supplier_Products.Vatable, dbo.Suppliers_POs_Details.ProductID,
dbo.Suppliers_POs_Details.PODetailsStatusReason, SUM(dbo.Suppliers_POs_Details_Received.Qty) AS QtyReceived
FROM PDS_Login.Supplier_Products INNER JOIN
dbo.Suppliers_POs_Details ON PDS_Login.Supplier_Products.ProductID = dbo.Suppliers_POs_Details.ProductID RIGHT OUTER JOIN
dbo.Suppliers_POs_Details_Received ON dbo.Suppliers_POs_Details.PODetailsID = dbo.Suppliers_POs_Details_Received.PODetailsID
GROUP BY dbo.Suppliers_POs_Details.PODetailsID, dbo.Suppliers_POs_Details.Qty, PDS_Login.Supplier_Products.ProductName,
PDS_Login.Supplier_Products.ProductCode, dbo.Suppliers_POs_Details.POID, dbo.Suppliers_POs_Details.PricePerItem,
dbo.Suppliers_POs_Details.PoDetailsStatus, dbo.Suppliers_POs_Details.PoDateExpected, dbo.Suppliers_POs_Details.PODateReceived,
PDS_Login.Supplier_Products.UOM, PDS_Login.Supplier_Products.Vatable, dbo.Suppliers_POs_Details.ProductID,
dbo.Suppliers_POs_Details.PODetailsStatusReason, dbo.Suppliers_POs_Details_Received.Qty
HAVING (dbo.Suppliers_POs_Details.POID = @POID)
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Feb 13, 2008
Hi
How I can get to see the relationships, like in access, in sql 2005?
Thank,
K
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Mar 16, 2008
Ok - I am still a bit weak on SQL. My understanding of FK relationships in a database are to reinforce the data integrity - Correct? For example, does it make sure that the id given for SiteID does indeed exists. Can it link tables like JOIN in select statements? If not, is there any gains by creating them, such as performance?
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