How To Relate Two Fields Of The Same Table

Apr 18, 2007

Hi,
I am new to sql and is working with sql server managment 2005 +c# 2005.

My application needs to create a blockdiagram sort of thing say
if in my database i got a table 'Addition' with 'a', 'b', 'c',and the primary key addition_id, and c is related to a and b as c = a+ b.

there is stored procedure name usp_addition which contains this relation. Each time any insert or update is done this sp is executed and all the values are updated for accordingly.
My problem starts in the front end where i need to draw the graphical representation of table addition.

In this graphical representation, I need to draw the labels a, b, c and the arrows from a and b which will connect to c, showing that c has a, b as inputs.

I got the label using dataset and datacolumns but hte problem is how to create the arrows the name of labels (i.e my column names from which the arrow should start and end)

How does I get the information that c as two inputs a, b. I dont need the values since i just want to view the columns in table and which column is input to another column.


Since I need to do this dynamically because my tablename, and the number and name of column would differ does any body knows how to do this.


Priyadarshini

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Lets sat that i have 3 tables that i want to relate together manually (no wizards) by using SQL statements.I am using Microsoft SQL Server 2005 in Visual Web Developer 2008 using VB programming (ADO.NET)The 3 tables are as follows:
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Hi all,
Lets say that i have 3 tables, they are already related together, information on each of the 3 tables and their relationship between eachother can be found below:
I am using Microsoft SQL Server 2005 Database in Visual Web Developer 2008 using VB programming (ADO.NET)
The 3 tables are as follows:


Floor
Room
Location


Fields inside each of the tables can be found below:



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(Required) Name
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ID field in Floor table is referenced by the field named FloorID in the Location table


NOTE: Location Table serves only as an extension to Floor table thus they have a 1 to 1 relationship, due to My Projects Lead's instructions I am not allowed to consolidate the Floor Table and the Location Table as 1 whole table.

Floor Table has a 1 to Many Relationship with the Room Table.


I Have already done the physical relationships between each of the 3 tables in the Database Diagram, in Visual Web Developer 2008 Express Edition under the Database Explorer

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Country Name:______________ (data sent to location table)

City Name:_________________ (data sent to location table)

Building Name:______________ (data sent to location table)

FloorID:[This is a DropDownList which is databinded to the Floor Table]

Room Name:_______________ (data sent to room table)

*Just imagine that the above is a form to accept user input

*With a hit of a submit button all data will be sent to their respective tables in the database

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Do give me that code that i can either apply in the (VB environment Visual Web Developer 2008) and/or in Microsoft SQL Server 2005 environment


Just need the SQL Statment that i will need to construct to perform the JOIN i need to.



Please Help

Many Thanks : )

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