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Best match query and order by columns Expand / Collapse
Posted Thursday, May 8, 2008 1:54 AM


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I'm trying to overcome a situation whereby I have to search through 4-5 columns and produce the results with an order by according to the values matched in these columns.


My Table Structure:

Create Table TestPfx
pfx varchar(20),
R1 money,
R2 money,
R3 money,
R4 money,
R5 money,
Insert into Testpfx values(1,1,7,1,3,9)
Insert into Testpfx values(12,5,8,2,5,5)
Insert into Testpfx values(123,8,9,3,7,1)
Insert into Testpfx values(1234,3,4,4,1,7)
Insert into Testpfx values(12345,6,5,5,5,5)
Insert into Testpfx values(123456,9,6,6,9,3)
Insert into Testpfx values(1234567,7,1,7,8,4)
Insert into Testpfx values(12345678,4,2,8,5,8)
Insert into Testpfx values(123456789,1,3,9,2,6)
Select * from Testpfx

Now, If I enter a value 124654654. I need this value to be best matched amongst those in my table. Like here value 12 will be best matched as we don't have a pfx value 124 in our table. had it been there it should've been my best match unless 1246 is present in pfx.

I hope I'm clear with this point.

Secondly, I need my output to be in an Ascending Order according to the column values for the selected best matched row. Like in our example, our best matched row is 12. So my output should look like this.

Pfx R3 R1 R4 R5 R2
12 2 5 5 5 8

If the searched number is 1230022827 result should be
Pfx R3 R1 R4 R5 R2
123 1 3 7 8 9

As part of my efforts so far I believe this should act as a query to BEST MATCH and find that single row. But I'm not too sure if its the best way.

Declare @No varchar(20)
Set @No = '124654654'
Select top 1 * from Rates Where @No like Pfx + '%' order by Pfx Desc

Please help as I'm totally getting clueless with arranging the columns in the best order.

I hope I'm clear with my problem.

Will look forward to the reply.

Ankit Mathur
Post #496923
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