The queries above (except for Smeet’s) return extra incorrect rows for compound FKs.

I ran a SQL Profiler trace while scripting out a compound FK in Management Studio and here is what I found in the Profiler trace. The result additionally outputs an ID column that displays the correct order in which the PK table columns are referenced.

Cheers

select tbl.name as [Table_Name] ,
cstr.name as [ForeignKey_Name],
fk.constraint_column_id as [ID] ,
cfk.name as [Name] ,
crk.name as [ReferencedColumn]
from sys.tables as tbl
inner join sys.foreign_keys as cstr
on cstr.parent_object_id=tbl.object_id
inner join sys.foreign_key_columns as fk
on fk.constraint_object_id=cstr.object_id
inner join sys.columns as cfk
on fk.parent_column_id = cfk.column_id
and fk.parent_object_id = cfk.object_id
inner join sys.columns as crk
on fk.referenced_column_id = crk.column_id
and fk.referenced_object_id = crk.object_id
order by [Table_Name] asc ,
[ForeignKey_Name] asc,
[ID] asc

It was great, it helped me in finding the duplicate FK for the same set of tables for the same set of fields.

With Regards
Dakshina Murthy

select object_name(constid) FKey_Name, object_name(fkeyid) Child_Table, c1.name FKey_Col,
object_name(rkeyid) Parent_Table, c2.name Ref_KeyCol
from sysforeignkeys s
inner join syscolumns c1
on ( s.fkeyid = c1.id
and s.fkey = c1.colid )
inner join syscolumns c2
on ( s.rkeyid = c2.id
and s.rkey = c2.colid )

Replace ‘TABLE_NAME’ with yours … !

Regards
Karim Laurent

select OBJECT_NAME(FKEYS.PARENT_OBJECT_ID) source ,PKCOLUMN_NAME= convert(sysname,col1.name), OBJECT_NAME(FKEYS.referenced_object_id) destination, FKCOLUMN_NAME = convert(sysname,COL2.name)

from

sys.columns COL1,

sys.columns COL2,

sys.foreign_keys FKEYS

inner join sys.foreign_key_columns KEY_COLUMN on (KEY_COLUMN.constraint_object_id = FKEYS.object_id)

where

COL1.object_id = FKEYS.referenced_object_id

AND COL2.object_id = FKEYS.parent_object_id

AND COL1.column_id = KEY_COLUMN.referenced_column_id

AND COL2.column_id = KEY_COLUMN.parent_column_id

AND OBJECT_NAME(FKEYS.PARENT_OBJECT_ID)=’TABLE_NAME’

This one is simpler, just gives you table_name and which type of key information and key name.

select OBJECT_NAME(PARENT_OBJ) TABLE_NAME, CASE WHEN XTYPE =’F’ THEN ‘FORIEGN KEY’ ELSE ‘PRIMARY KEY’ END KEY_TYPE , NAME KEY_NAME
from sysobjects where Xtype in (‘F’ , ‘pK’) ORDER BY XTYPE DESC

I am using only sysobjects table to get this information.

Hope this helps.
Imran.

There are 4 tables with relationships to each other. ConferenceRoom, ConferenceRoomCapacity, TeleTrackPhone, and RPSLocation

The table ConferenceRoom stores attributes pertaining to conference rooms.

The table ConferenceRoomCapacity stores attributes pertaining to the maximum capacity of the conference room.

The table TeleTrackPhone contains different phone numbers. It stores ConferenceRoomID and RPSLocationID as FKs.

The table RPSLocation stoes info about different locations, city, state, etc.

The TeleTrackPhone table allows duplicate values for the ConferenceRoomID because a conference room can have more than one phone number.

This is the query that I run.

SELECT DISTINCT A.ConferenceRoomID, A.ConferenceRoomName, C.City, C.State
FROM ConferenceRoom As A, TeleTrackPhone As B, RPSLocation As C, ConferenceRoomCapacity As D
WHERE A.ConferenceRoomID = B.ConferenceRoomID
AND B.RPSLocationID = C.RPSLocationID
AND A.ConferenceRoomID = D.ConferenceRoomID

My problem is that it returns duplicates if the conference room has multiple phone numbers and i only want the query to return a list of conference rooms.