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how can i see relationship

Posted on 2014-12-06
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Last Modified: 2014-12-30
Hi,
I have tables in sql server 2008 and that tables have 1-1 or 1-n relationship

lets say i have table x and table x has reationship to 5 other tables

how can i see that in some kind of  visio in sqlserver .

Thanks
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Question by:sam2929
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4 Comments
 
LVL 7

Expert Comment

by:Camillia
ID: 40485154
See screenshot

1.Sql Server Management Studio ->Object Explorer->Databases->Database Node
2. find a node named Database Diagrams
3.Right Click on "Database Diagrams" node and select new database diagram. You'll get a wizard.

diagram
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LVL 10

Accepted Solution

by:
HuaMinChen earned 500 total points
ID: 40485396
Hi,
You can list out all FK and PK of the tables by
SELECT OBJECT_NAME(OBJECT_ID) AS NameofConstraint,
SCHEMA_NAME(schema_id) AS SchemaName,
OBJECT_NAME(parent_object_id) AS TableName,
type_desc AS ConstraintType
FROM sys.objects 
WHERE type_desc IN ('FOREIGN_KEY_CONSTRAINT','PRIMARY_KEY_CONSTRAINT')
GO

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as all relationships should involve PK and FK of the relevant tables.
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LVL 7

Expert Comment

by:Dung Dinh
ID: 40486235
Hi,

The simplest way, you right click on the table then choose View Dependencies -> Objects on which ... depends
ObjectDependencies.PNG
Another way, use script to find out FOREIGN KEY
SELECT t.[Table Name],
t.[Foreign Key Name],
t.[Parent Table],
t.[Referenced Column]
FROM (
SELECT
 '[' + SCHEMA_NAME(fk.[schema_id]) + '].[' + OBJECT_NAME(fk.parent_object_id) + ']' AS [Table Name]
,fk.name [Foreign Key Name]
,OBJECT_NAME(fk.referenced_object_id) [Parent Table]
,COL_NAME(fkc.referenced_object_id,fkc.referenced_column_id) AS [Referenced Column]
FROM sys.foreign_keys fk
   INNER JOIN sys.foreign_key_columns fkc ON fk.object_id = fkc.constraint_object_id) t
--WHERE   t.[Table Name] =  N'[dbo].[FactFinance]'
ORDER BY [Table Name] ASC

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