Hi List ! I have one problem

SELECT DISTINCT
L.LINE_ID,
L.DSCR ,
L.DSCR_LONG ,
QL.QUOTE_LINE_ID
FROM LINE L,MKT_LINE ML,QUOTE_LINE QL
WHERE
ML.LINE_ID=L.LINE_ID
AND QL.MKT_LINE_ID=ML.MKT_LINE_ID
AND QL.INV_ID =
10134

it result is

    LINE_ID    DSCR DSCR_LONG    QUOTE_LINE_ID
 10002 25     Commercial Property       10528
 10002 25    Commercial Property        10529
 10009 52    Workers Comp                 10530

i want to get those line where line id is unique but i can not ditch the Quote_line_id colum . Diffrent  quote_line id can  refer to same line . So i want to ask is there any way to row wise comparison in SQL itself. in above example i want to ditjch second record as it has same LINE_ID  as first one.
 
Plz help me..
 
thanx in advance..
Shishir Kumar Mishra
Agni Software (P) Ltd.,
Bangalore-560055, India
www.agnisoft.com

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