Question

I am using sql server 2000
I have a table like below :

lr_no   seq len       
8402606 003 48
8410184 002 50
8410184 003 30
8411592 002 33
8415732 005 12
8416530 002 24
8415732 004 27

where 8410184 & 841573 are duplicated .

i want to filter the table such that if in case of duplicate lr_no’s then row is selected depending on max(len) .

final output should be

    lr_no   seq len       
    8402606 003 48
    8410184 002 50
    8411592 002 33
    8416530 002 24
    8415732 004 27

can anyone help ?

Answer 1

SELECT t.lr_no, t.seq, t.len
    FROM YourTable t
        INNER JOIN (SELECT lr_no, MAX(len) AS MaxLen
                        FROM YourTable
                        GROUP BY lr_no) q
            ON t.lr_no = q.lr_no
                AND t.len = q.MaxLen