Multiple foreign keys in a table referencing the same primary key another table

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i came across requirement of multiple foreign keys in a table
referencing the same primary key another table.
Table structure is as follows:
Table Name

Quote:
File_Master

file_id
file_no
from_Designation_id
to_Designation_id

Table Name

Quote:
Designation_Master

Designation_id
Designation_name

File_Master has multiple foreign keys(from_Designation_id,to_Designation_id) which reference Designation_Master Designation_id(pk) .

Now can anyone please help me to join these above two table as follows
file_id, file_no, from_Designation, to_Designation

Posted 23-Dec-12 18:21pm

sahabiswarup

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__TR__ · Accepted Answer · 2012-12-23T19:09:00

Solution 1

Try

SQL

SELECT file_id, file_no, DM1.Designation_name AS from_Designation, DM2.Designation_name AS to_Designation
FROM File_Master F
LEFT JOIN Designation_Master DM1 ON F.from_Designation_id = DM1.Designation_id
LEFT JOIN Designation_Master DM2 ON F.to_Designation_id = DM2.Designation_id

Posted 23-Dec-12 19:09pm

__TR__

Comments

sahabiswarup 24-Dec-12 2:13am

Thanks for your support..
5 from me