I know the method where you select each and every table and manually create foreign key relationships to other tables in the database visually or by sql. Is there any way in SQL server 2005, to create these relationships using wizard, where it checks for the same column names in different tables and creates the relationships. If yes, please let me know how to do it in SQL server 2005.
View 3 RepliesIs it possible to create relationships between tables using foregin keys with MSDE. I have looked for any information and can't seem to find anything.
View 3 Replies View RelatedHello
I am using a web hosting company for my web site, unfortunately after developing the site with server express the company told me they do not support this. As the database only holds three tables and only contained test data, this was not too much of a problem and I thought I would rebuild the databse on the development tool (ASP.net enterprise manager). I have managed to create the tables and populate them with the required data. My only problem is the user interface of the enterprise manager is not the friendliest and I am not too sure how to create the relationships between the tables. The interface only seems to have facilities for creating tables, views, stored procedures, users and roles.
Any tips on how I can create relationships between the tables.
Graeme
I've been searching around for some info on how to set this up, but with no luck.I need to have a .sql file that will set up a few tables and these tables will have relationships and contraints.I can do this by hand in enterprise manager, but need to set up some procedures that will do the same thing.For instance, I can create the tables just fine.....CREATE TABLE students ( sId int NOT NULL PRIMARY KEY, studentId varchar(50) NOT NULL, course varchar(50) )
CREATE TABLE courses ( cId int NOT NULL PRIMARY KEY, course varchar(50) NOT NULL, sco varchar(50) )But, I need to set up relationships in there somehow.Once student may have many courses (one to many) and one course may have many sco's (one to many) SCO would be another table.Can someone point me to a good link that would show how to complete these procedures?Thanks all,Zath
I have created two tables and receive a "columns in table ... do not match an existing primary key or UNIQUE constraint." error message.
Table1: GOSMapping
PK: AuthInd (bigint)
PK: GLCode (nchar(8))
-both columns were set as PK simultaneously
Table2: GOSTracking
PK: AdjID
FK: AuthInd (bigint)
FK: GLCode (nchar(8))
I open Table2 in the designer and right click, then select Relationships. I choose both of the columns that are the PK in Table1, and set the exact fields as the FK in Table2. I get the message when trying to save this relationship. All data types are congruent, and the primary key has been set as the combination of the two PK columns in Table1. Any ideas?
Hello again,
I'm going through my tables and rewriting them so that I can create relationship-based constraints and create foreign keys among my tables. I didn't have a problem with a few of the tables but I seem to have come across a slightly confusing hiccup.
Here's the query for my Classes table:
Code:
CREATE TABLE Classes
(
class_id
INT
IDENTITY
PRIMARY KEY
NOT NULL,
teacher_id
INT
NOT NULL,
class_title
VARCHAR(50)
NOT NULL,
class_grade
SMALLINT
NOT NULL
DEFAULT 6,
class_tardies
SMALLINT
NOT NULL
DEFAULT 0,
class_absences
SMALLINT
NOT NULL
DEFAULT 0,
CONSTRAINT Teacher_instructs_ClassFKIndex1 FOREIGN KEY (teacher_id)
REFERENCES Users (user_id)
)
This statement runs without problems and I Create the relationship with my Users table just fine, having renamed it to teacher_id. I have a 1:n relationship between users and tables AND an n:m relationship because a user can be a student or a teacher, the difference is one field, user_type, which denotes what type of user a person is. In any case, the relationship that's 1:n from users to classes is that of the teacher instructing the class. The problem exists when I run my query for the intermediary table between the class and the gradebook:
Code:
CREATE TABLE Classes_have_Grades
(
class_id
INT
PRIMARY KEY
NOT NULL,
teacher_id
INT
NOT NULL,
grade_id
INT
NOT NULL,
CONSTRAINT Grades_for_ClassesFKIndex1 FOREIGN KEY (grade_id)
REFERENCES Grades (grade_id),
CONSTRAINT Classes_have_gradesFKIndex2 FOREIGN KEY (class_id, teacher_id)
REFERENCES Classes (class_id, teacher_id)
)
Query Analyzer spits out: Quote: Originally Posted by Query Analyzer There are no primary or candidate keys in the referenced table 'Classes' that match the referencing column list in the foreign key 'Classes_have_gradesFKIndex2'. Now, I know in SQL Server 2000 you can only have one primary key. Does that mean I can have a multi-columned Primary key (which is in fact what I would like) or does that mean that just one field can be a primary key and that a table can have only the one primary key?
In addition, what is a "candidate" key? Will making the other fields "Candidate" keys solve my problem?
Thank you for your assistance.
Hi
Need help in writing a query. I have a table contains details about an item. Each item belongs to a group. Items have different status. If any one of the item in a group is not "Completed", then the itemgroup is in state incomplete. if all the item under the group is completed then the item group itself is completed. Now I need to create a view with itemgroup and itemstatus.
Suppose I have five records
item itemgroup status
1 1 complete
2 1 Xyz
3 2 complete
4 2 complete
5 2 complete
my view should be
itemgroup status
1 incomplete
2 complete
All the Statuses are not predefined...they get added as and when required........
Right now I am using a function. But dont want to use it for performance reasons. Would appriciate any help.
Thanks
I want a stored procedure to run everytime the batch Status field is set to 'Released'
<Code>
CREATE TRIGGER [CSITSS].[tdecker].[FB401BV_TRIGGER] ON [CSITSS].[dbo].[Fbbatch] FOR UPDATE [Status]
AS
DECLARE @RC int
DECLARE @Batch int
SET @Batch = (??? BATCH NUMBER THAT WAS SET TO RELEASE ???)
EXEC @RC = [CSITSS].[tdecker].[GLP_FB401BV_BATCH] @Batch
</Code>
Hi,I have a need to create a table detailing the ID of all contacts and thelast time they were contacted. This information is stored in 2 tables,'contact' and 'activity' (ID in the 'contact' table links to 'main_contact'in the 'activity' table).I guess I need some sort if iteration to go through each contact and findfind the last activity that took place against each of them (there many bemore than 1 activity against each contact) and then place the output valuesinto the new table.Can anyone show me how to go about this?Thanks!
View 2 Replies View RelatedI am using a poker application that imports all played hands into a PostgreSQL database. I'm trying to write some queries for that database so I can make good use of the data. I figure PostgreSQL and SQL server probably have similar language. And I know these forums are great. So I'm posting here for help.
This is a working code snippet that retreives three properties of a player:
Code Snippet
SELECT sum(totalhands) AS HANDS, sum(vpiphands) AS VPIPHANDS, sum(pfrhands) AS PFRHANDS
FROM compiledplayerresults WHERE compiledplayerresults_id in (
SELECT compiledplayerresults_id FROM compiledresults WHERE play
SELECT player_id FROM players WHERE playername='PLAYERNAME'));
This is all I can do with my skills right now. However I very much want to learn to query for more things:
- I'd like to be able to make a query for several players at the same time
- I'd like to be able to get the aggregate properties for all players who are not PLAYERNAME1 or PLAYERNAME2
- I'd like to be able to get the aggregate vpiphands property from all players whose totalhandsis > 100 and < 1000.
I hope you can help me with that. If you can, that will make me very happy and grateful! Thanks!
Can someone please help me....I have created a DNN module that works on
the test site but when I upload the module zip to a new site I get an
error on creating my stored proceedure as follows:
StartJob
Begin Sql execution
Info
Executing 01.00.00.SqlDataProvider
StartJob
Start Sql execution: 01.00.00.SqlDataProvider file
Failure
SQL Execution resulted in following Exceptions:
System.Data.SqlClient.SqlException: Line 25: Incorrect syntax near '@Str_Title'.
Line 51: Incorrect syntax near '@Str_Title'. at
System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at
Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(SqlConnection
connection, CommandType commandType, String commandText, SqlParameter[]
commandParameters) at
Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String
connectionString, CommandType commandType, String commandText, SqlParameter[]
commandParameters) at
Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String
connectionString, CommandType commandType, String commandText) at
DotNetNuke.Data.SqlDataProvider.ExecuteScript(String Script, Boolean
UseTransactions) CREATE PROCEDURE dbo. ListTAS_Journal @PortalID int, @SortOrder
tinyint = NULL, @Str_Title varchar(100) = '', @Str_Text varchar(100) = '' AS IF
ISNULL(@Str_Title, '') = '' or ISNULL(@Str_Text, '') = '' SELECT [EntryID],
[PortalID], [ModuleID], [Title], [Text], [DateAdded], [DateMod], [Owner],
[Access] FROM TAS_Journal WHERE PortalID = @PortalID AND (Title like
COALESCE('%' @Str_Title '%' ,Title , '') AND Text like COALESCE('%' @Str_Text
'%' ,Text, '')) ORDER BY (CASE WHEN @SortOrder = 1 THEN DateAdded WHEN
@SortOrder = 0 THEN DateMod END) DESC, EntryID DESC else /***Select from either
field ***/ SELECT [EntryID], [PortalID], [ModuleID], [Title], [Text],
[DateAdded], [DateMod], [Owner], [Access] FROM TAS_Journal WHERE PortalID =
@PortalID AND (Title like COALESCE('%' @Str_Title '%' ,Title , '') OR Text like
COALESCE('%' @Str_Text '%' ,Text, '')) ORDER BY (CASE WHEN @SortOrder = 1 THEN
DateAdded WHEN @SortOrder = 0 THEN DateMod END) DESC, EntryID DESC
EndJob
End Sql execution: 01.00.00.SqlDataProvider file
The SP looks like this:
/* -------------------------------------------------------------------------------------
/ ListTAS_Journal
/ ------------------------------------------------------------------------------------- */
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS OFF
GO
CREATE PROCEDURE {databaseOwner}{objectQualifier} ListTAS_Journal
@PortalID int,
@SortOrder tinyint = NULL,
@Str_Title varchar(100) = '',
@Str_Text varchar(100) = ''
AS
IF ISNULL(@Str_Title, '') = '' or ISNULL(@Str_Text, '') = ''
SELECT
[EntryID],
[PortalID],
[ModuleID],
[Title],
[Text],
[DateAdded],
[DateMod],
[Owner],
[Access]
FROM
TAS_Journal
WHERE
PortalID = @PortalID AND
(Title like COALESCE('%' + @Str_Title + '%' ,Title , '') AND
Text like COALESCE('%' + @Str_Text + '%' ,Text, ''))
ORDER BY
(CASE
WHEN @SortOrder = 1 THEN DateAdded
WHEN @SortOrder = 0 THEN DateMod
END) DESC, EntryID DESC
else
/***Select from either field
***/
SELECT
[EntryID],
[PortalID],
[ModuleID],
[Title],
[Text],
[DateAdded],
[DateMod],
[Owner],
[Access]
FROM
TAS_Journal
WHERE
PortalID = @PortalID AND
(Title like COALESCE('%' + @Str_Title + '%' ,Title , '') OR
Text like COALESCE('%' + @Str_Text + '%' ,Text, ''))
ORDER BY
(CASE
WHEN @SortOrder = 1 THEN DateAdded
WHEN @SortOrder = 0 THEN DateMod
END) DESC, EntryID DESC
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
This SP works on the test site.
Any help would be creatly apreciated
Mark
Hi
I am currently trying to write a custom transform componet in c# that will take a row of data, perform a look-up via an external system,
then if there is a match then send the data from the extranel system down macth ouptut (which will have different columns to the input) and drop the data that
was read, else send the data down the unmacthed output which will be the same as the input.
So I would like to write a synchrons transform becuase I don't need read all the rows from the input buffer before I started processing, also I wish have millions of rows
load in memory.
Can this be done? also does any have explame code of how to do this? becuse I can't see how to send data down the match output buffer,
as this will have the lookup results data which will have diffent columns to the input data and how disgard the input data as well.
Thanks Steve
Details :
Reporting Services 2000, SQL 2000 database, Visual Studio . Net 2003
In Report Design view
In "Data" tab, I can see records for column 'sRCName' returned from the stored procedure(usp_GetRouteCodeData) after clicking '!' icon. When I moved to "Preview" tab, I am getting below error message.
"The value expression for the textbox €˜sRCName€™ refers to the field €˜sRCName€™. Report item expressions can only refer to fields within the current data set scope or, if inside an aggregate, the specified data set scope."
Observation : there is no value returned from the dataset on 'Fields' panel. The SP is accessing a table called tblRCM.
If I go to the Data--> Dataset --> Query, change the "Command Type" from 'Stored Procedure' to 'Text' and entered
select * from tblRCM at Query string area, the report is running fine.
Issue: This issue only happens at my laptop, my team member can create the same report using the same stored procedure without any error. The database is sitting on a server.
In the troubleshooting process, I tried to create a simple report by calling a stored procedure(CustOrderHist) from NorthWind DB in my local SQL server, I am able to see the data/value in 'Fields' panel and sucessfully view the data in 'Preview' tab.
Looks like the issue only happen on my machine, for a report that using stored procedure to access a DB sitting on a server.
I hope to hear from anyone who have encountered the similiar issue before, or, have any clue to resolve the issue.
Thanks.
Greetings!
I would like to create a database for keeping track of payroll data for employees where the supervisors (job coaches) on our workshop floor can use a Pocket PC device to record the hourly employee data on the fly. Then at the end of the day, the supervisor can place the device in a cradle of some sort and synch the newly entered data into the main database.
I'm guessing that SQL Server Compact edition would be perfect for this type of task? Is that correct? Can someone give me recommendations on how to go about setting this up? What should I use as the main database? SQL Server? Access? Any advice is appreciated!
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.
View 3 Replies View RelatedHow 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>
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.
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
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
View 2 Replies View RelatedMy 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?
View 4 Replies View RelatedIs there a tool in Enterprise manager to list out the one to many & many relationships with a database?????:?:
View 4 Replies View RelatedHey, 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?
View 3 Replies View RelatedI 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
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
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
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.
How can I use with relationShips in SQl?
Tamir BLoch .
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.
Hi
How I can get to see the relationships, like in access, in sql 2005?
Thank,
K
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?
View 1 Replies View RelatedI'm having some trouble working out how to query some data. Rather than explain up front, here's some examples of what I want to achieve:
*******************************************************
I've got a structure which looks vaguely like this:
[ANCESTORS]
Grandparent
Parent
Child
If limit by grandparents, then I only get the lineage for that particular grandparent. I.e.:
SELECT *
FROM [ANCESTORS]
( some sort of joins here )
Where Grandparent.Name = 'Cybill'
This would return all of the children of 'Cybill' and their children. Now, if I use the following query:
SELECT *
FROM [ANCESTORS]
( some sort of joins here )
Where Child.Name = 'Jean'
This would return Jean's parents + the parents of Jean's parents (Jean's grandparents).
Likewise, if I enter:
SELECT *
FROM [ANCESTORS]
( some sort of joins here )
Where Parent.Name = 'Ron'
Then I would get Ron's parents and also his children.
*******************************************************
So, as you can see, at first it appears that I'm after a LEFT JOIN - meaning that the grandparents don't need to have child records to be returned, but, then it turns out that I need INNER JOINS - to limit grandparents when I choose children.
Can anybody see my dilemma here?
Mark-up ASP.net posts here
MarkItUp.com
Hi
I am using the Web Matrix Project to write a .NET
application. I have set up a database using MSDE which I
accessed through the Web Matrix Project to start with. I have now
found the Web Data Administrator which I use to backup my database and
help to transfer it to the Server where I hope to run this application
(if I ever get it finished!).
I need to set up some relationships between database tables but cannot
see a way to do this. SQL Server Books on Line referes to
Enterprise Manager which I believe ships with the full MS SQL Server
package (and costs a package). I am doing this on a
shoe-string. Any ideas on how to do it?
Thanks in advance.
Mike
I wanted to know that whether using relatioships betwenn tables improves performace for select queries?
what is the significance of using joins in queries after implementing relationships?
thanks